The Slytherin Common Room Was Exactly as Cold and Unwelcoming as Severus Snape Had Expected.
Which was to say: it exceeded expectations while simultaneously confirming every worst fear he'd been carefully not thinking about since the Sorting Hat had whispered "Slytherin" into his ear like a curse, a promise, a beginning of something that might be either wonderful or terrible and would probably manage to be both at the same time because that's how stories like this always went.
The dungeon chamber stretched beneath the lake like a cathedral built by people who understood that beauty and menace were basically the same thing if you got the lighting right. The ceiling rippled with water—actual lake water, overhead, held back by magic and architecture and several hundred years of not collapsing despite every logical reason it absolutely should have—casting greenish shadows across stone walls that looked carved from frozen malice and inherited spite. Windows gazed out into murky depths where dark shapes drifted past with the lazy menace of predators who'd learned patience the way most people learned multiplication tables: through repetition, inevitability, the certain knowledge that eventually everything bleeds.
The furniture was all dark wood and green leather, arranged in clusters that spoke of territories claimed, defended, occasionally contested through social warfare that left no visible scars but plenty of psychological ones. Silver fixtures gleamed with calculated elegance, like someone had put genuine thought into making oppression look *stylish*. The overall atmosphere suggested a gentleman's club for people whose idea of networking included strategic backstabbing, psychological warfare, and the kind of careful documentation of everyone's weaknesses that made filing systems into weapons.
It was, in short, exactly what a Slytherin common room should be.
Which made it absolutely *terrifying* in all the best worst ways.
Severus stood just inside the entrance, trunk clutched in hands gone white-knuckled with tension he refused to acknowledge as *fear* because fear was weakness and weakness was currency here, traded and exploited and carefully catalogued for future use. He took in the space with systematic attention—exits here, social clusters there, potential allies versus definite threats versus people who'd be both depending on circumstances—conducting threat assessment disguised as casual observation because showing obvious reconnaissance painted targets on your back faster than actually *being* a target.
His black robes hung on his thin frame like borrowed clothes. Which they *were*, technically—everything he owned was borrowed or salvaged or purchased with money that had required careful planning and strategic deprivation to accumulate. His lank hair fell across pale features carefully arranged into calculated neutrality that revealed nothing, *nothing*, because showing emotion was showing vulnerability and he'd learned that lesson early and hard and repeatedly.
*Stop it,* he told himself with the kind of internal firmness that would've been more effective if his stomach wasn't attempting advanced origami. *Strategic assessment. Not existential panic. You're smarter than most of them. More motivated than all of them. You belong here. You can handle this.*
The pep talk was technically accurate but emotionally unconvincing, which was unfortunately typical when you were eleven years old and standing in a dungeon full of snakes who were all bigger and better-fed and probably capable of eating you alive without even pausing their conversations about summer estates and trust funds and family trees that went back to when trees were still being invented.
Around the room, older Slytherins were scattered in various states of relaxation and predatory interest. Some genuinely ignoring the first-years—too absorbed in their own dramas, their own games, their own carefully orchestrated lives. Others watching with calculating attention that suggested they were already determining usefulness, threat level, potential exploitation value. Who would be asset. Who would be prey. Who would simply be ignored, which was sometimes worse than being prey because at least prey got *attention*.
A prefect had given them the tour. Fifth year, sharp-featured, aristocratic bearing that came from generations of careful breeding and probably some light inbreeding if family tree patterns meant anything. Brief, efficient, covering essentials without wasting time on warmth or welcome or any pretense that they were *glad* to have new students rather than viewing them as potential problems requiring management.
Dormitories through that door. Bathrooms through that one. House rules posted on the board, read them, internalize them, don't need them explained like children. Don't embarrass the house—meaning don't get *caught* doing anything that reflected poorly on Slytherin's reputation. Slytherins look after their own, but only if you prove yourself *worthy* through demonstrated capability or useful connections or strategic value that outweighed the cost of supporting you.
Questions could be directed to prefects, but try not to be *stupid* about it.
Then he'd dismissed them with a gesture that clearly indicated they were now on their own to either sink or swim in Slytherin's particular brand of social Darwinism.
Most of the other first-years had scattered like startled fish. Some heading for dormitories to claim beds before the good spots disappeared. Others clustering by the fire in nervous groups, seeking safety in numbers and collective anxiety. A few attempting conversations with older students with varying degrees of success, failure, and spectacular miscalculation.
Severus remained by the entrance. Still assessing. Still calculating. Still trying to determine optimal positioning before committing to any particular strategy because rushing in without proper reconnaissance was how you made enemies before learning their names, established yourself as prey before figuring out who the predators *were*, limited future options through incomplete information.
*Slytherin values ambition, cunning, and resourcefulness,* he reminded himself. *I have all three. I belong here. I can handle this.*
*I'm going to prove blood status is irrelevant. That a half-blood from Spinner's End can be just as powerful, just as capable, just as worthy of respect as any pureblood heir with gold and family trees and inherited everything.*
*I just have to survive long enough to do it.*
The pep talk remained technically accurate and emotionally unconvincing.
"Severus!"
The voice came from his left—smooth, bright, carrying friendly interest that was either genuine or sophisticated trap designed to make him lower his guard before someone struck. Could be either. Could be *both*. This was Slytherin, after all, where friendly and dangerous weren't opposites so much as complementary aspects of the same thing.
Severus turned with careful deliberation. Keeping expression neutral. Body language non-threatening but not submissive. Trying to project exactly the right combination of confidence and caution.
He found himself facing a girl his own age with golden-blonde hair that caught the lamplight and seemed to glow with its own internal radiance, bright blue eyes holding shrewd intelligence beneath their friendly sparkle, and an expression suggesting she was genuinely pleased to see him rather than conducting reconnaissance.
She looked like sunshine had somehow found its way into the dungeons. Like optimism had taken human form and decided to attend Hogwarts. Like someone who belonged in literally any house except this one.
Rosmerta Gappleford. They'd been sorted into Slytherin within minutes of each other, though they hadn't spoken yet beyond brief acknowledgment while both processing the same overwhelming experience.
Her voice carried that particular combination of practical competence and social confidence that suggested someone who'd grown up around strangers. Learned to read people through constant customer interaction. Developed emotional intelligence through years of watching adults drink themselves into honesty.
Severus mentally catalogued this as potentially useful. Social skills were valuable in Slytherin's political waters, especially combined with information-gathering instincts that came from growing up in a pub where people forgot the landlord's daughter had functioning ears.
"Hi," Severus said carefully. Offering nothing that could be used against him later. Maintaining cautious neutrality that kept options open.
Rosmerta smiled—bright, genuine, completely incongruous with their current environment. Like she'd missed the memo about how Slytherin worked, or received it and decided it was boring.
"So!" She bounced slightly on her toes, which was *definitely* not standard Slytherin behavior. "First night in the snake pit. How are you feeling? Terrified? Excited? Planning elaborate revenge scenarios against people who haven't even bothered you yet?" A pause, then brightly: "All of the above?"
"Conducting threat assessment," Severus replied with absolute honesty, because something about her directness invited matching candor. "Trying to determine optimal positioning before committing to any particular social strategy."
"Very Slytherin." Rosmerta's grin widened. "Very paranoid. Very smart. I like it." She stepped closer, lowering her voice to something more confidential. Conspiratorial. Like they were already allies sharing secrets rather than strangers conducting initial reconnaissance.
"Listen," she said, "I'm gonna be straight with you because I think we could be useful to each other, and also because I really, really suck at playing games where I have to pretend I'm thinking something different than what I'm actually thinking, which is apparently a critical Slytherin skill but whatever—" she waved one hand dismissively, "—I'm working with what I've got."
Severus felt something in his chest unclench slightly. A tension he hadn't realized he'd been carrying. Fear that everyone in Slytherin would require constant performance, strategic calculation, that there'd be no one who valued directness over manipulation.
"I'm listening," he said quietly.
"Okay, so—" Rosmerta glanced around quickly, checking that no one was paying particular attention. Then continued in that same low, confidential tone: "That was *quite* the scene on the train. With Malfoy and his fan club of Pureblood Bigots Junior Division wannabes."
Severus felt his shoulders tense automatically. Defensive mechanisms activating before conscious decision. Expression remained carefully neutral—years of practice hiding reactions from his father had taught excellent emotional control—but his voice came out slightly flatter when he replied: "Yes. It was."
"You handled it *brilliantly*," Rosmerta said with obvious enthusiasm, eyes lighting up with genuine admiration. "Seriously, the way you just—" she made a gesture like verbally demolishing someone, "—absolutely *destroyed* his arguments with perfect logic and zero tolerance for his blood purity bullshit? That was *art*. That was *beautiful*. I wanted to applaud but I was too busy being impressed and also slightly terrified because Malfoy looked like he wanted to hex you into next Tuesday, possibly Wednesday if he could manage it."
Despite his best efforts, Severus felt the corner of his mouth twitch upward. Might have been the beginning of a smile. Wasn't sure—hadn't had much practice. "He did seem displeased."
"*Displeased!*" Rosmerta laughed—bright and genuine, like she hadn't learned yet that laughter in Slytherin was supposed to be calculated and strategic. "He looked like someone had just told him his family fortune was fake and his hair wasn't naturally that color and also that his entire personality was constructed from expensive nothing and inherited mediocrity." She paused, then added thoughtfully: "Which, honestly, I have *questions* about the hair. No one's hair is naturally that platinum. There's definitely some kind of magical maintenance happening there. Like, is it a charm? A potion? A family curse that they're pretending is a blessing?"
"Probably a family glamour," Severus offered, surprising himself with the casual observation. "Maintained through bloodline inheritance. Completely useless for anything except aesthetic vanity, but very expensive to establish initially. The kind of magic that says 'we have so much gold we can waste it on making sure our hair looks dramatically evil.'"
"See, this is *exactly* why we should be friends," Rosmerta said with obvious satisfaction. "You know weird magical facts about how rich people maintain their pretentious hair colors. That's the kind of information that's both fascinating and strategically useful for mocking them later, which are basically my two favorite categories of information."
Severus blinked. "We're... friends?"
"Well, we *could* be." Rosmerta clarified quickly, like she'd just realized she'd been assuming things. "I mean, if you want. No pressure. But I think we'd work well together—you've got the brains and the scary intensity and the ability to verbally eviscerate people using only logic and contempt, and I've got the social skills and the ability to make people think I'm harmless when I'm actually gathering intelligence on all of them." She smiled brightly. "Classic complementary skill sets. Like tea and biscuits, except instead of being delicious we're strategically useful."
She paused, studying him with obvious curiosity. Then her expression shifted slightly—still friendly, but with an edge of something sharper beneath. Something more serious.
"Fair warning though," she said, voice dropping even lower, taking on weight that suggested this was the *real* reason she'd approached. The actual information beneath the friendly introduction. "Malfoy's been holding court over there—" subtle gesture toward a cluster of third-years and above near the far end of the common room, where platinum-blonde head was visible surrounded by personal entourage, "—telling his version of events to anyone who'll listen. Which is basically everyone who wants to stay on his good side, can't afford to make an enemy of the Malfoy family, or just defaults to believing whatever the richest person in the room says because that's how power works when you're not paying attention."
Severus followed her gaze to where Lucius Malfoy sat like some kind of aristocratic spider at the center of his web. Surrounded by older Slytherins hanging on his every word with expressions ranging from genuine admiration to calculated interest to barely concealed ambition. Several nodding along to whatever he was saying. Making appropriate sounds of agreement. Performing social support that was less about conviction and more about strategic positioning.
*Of course he is,* Severus thought with weary resignation that tasted like ash and inevitable conflict. *Can't let the humiliation of being verbally demolished by eleven-year-olds go uncontested. Has to reshape the narrative. Protect his reputation. Position himself as victim rather than aggressor.*
"What version is he telling?" Severus asked quietly, though he could already guess. He'd seen this pattern before—older, richer, more powerful people rewriting reality to suit their preferred narrative. Counting on most people accepting their version because challenging it required resources and social capital that most didn't have.
Rosmerta's expression turned sardonic. Eyes flashing with obvious irritation. "Oh, you know. The usual bullshit. The one where *he* was being perfectly reasonable and diplomatic, offering helpful guidance to confused first-years about appropriate social associations and proper magical society standards, and was then *viciously* verbally attacked by a group of ungrateful blood traitors and ignorant Muggleborns who were too stupid to appreciate his generous advice and wise counsel."
She rolled her eyes so dramatically it looked like they might actually escape her skull and make a break for freedom. "Because *obviously* that's what happened. Obviously barging into someone else's compartment uninvited, throwing around slurs like you're handing out business cards at a networking event, threatening people, and generally being a massive tool is actually 'offering guidance' and 'maintaining proper standards.' Very reasonable. Very diplomatic. Totally not the behavior of someone who desperately needs to be knocked down several pegs and possibly also pushed into a lake."
"Naturally," Severus said dryly, feeling that almost-smile threatening to return. "Because that's definitely an accurate representation of events. Very objective. No bias whatsoever. Could probably be used as historical documentation."
"*Right?*" Rosmerta's voice rose slightly with indignation before she caught herself and lowered it again. "I mean, I was *there*. I heard the whole thing through the compartment wall because sound carries in trains and also I was kind of eavesdropping because it sounded interesting and I'm professionally nosy." She leaned in closer, voice dropping to almost a whisper. "He *literally* showed up, insulted everyone's blood status like he was reading from a checklist, threatened future consequences, and basically tried to intimidate a bunch of eleven-year-olds into accepting his worldview through sheer aristocratic assholery. But apparently that's 'offering guidance' in Malfoy-speak. Which is a language I don't speak and also don't *want* to speak because it sounds exhausting and also morally questionable."
She paused, then continued with obvious determination: "Here's the thing though—his version is *working*. People are buying it. Or at least, they're pretending to buy it because challenging the Malfoy family narrative is dangerous and most people would rather just go along with whatever keeps them safe, which I understand but also find deeply disappointing because I had higher hopes for Slytherin cunning than 'believe whatever the rich kid says.'"
"Social survival through strategic agreement," Severus observed quietly. "Very Slytherin."
"Very *depressing*," Rosmerta countered. "But yeah, very Slytherin. Which is why—" she paused, seeming to gather her thoughts, then continued with obvious determination, "—which is why I wanted to talk to you. Because you're going to need to be really, *really* careful about how you navigate the next few weeks. Possibly months. Possibly your entire Hogwarts career depending on how vindictive Malfoy decides to be, and based on that train incident I'm guessing 'extremely vindictive' is the baseline we're working with."
Severus studied her carefully. Trying to determine her angle. Her motivation. Her purpose in offering this warning. "Why do you care? We barely know each other. For all you know, I might be planning to join Malfoy's faction and cement my position through strategic alliance with established power, which would be the smart play if I cared more about survival than principles."
"Are you?" Rosmerta asked bluntly.
"No."
"Then that's why I care." She replied simply, like it was the most obvious thing in the world. "Look—I grew up in a pub. The Three Broomsticks in Hogsmeade. My parents run it, and I've been helping out since I was old enough to carry plates without dropping them, which happened earlier than you'd think because I was very motivated by wanting to help and also by the tips." She smiled slightly. "You know what you learn working in a pub?"
"That people drink too much and make poor decisions?" Severus suggested.
"Well, yes, *obviously*. But also—you learn to read people. Really *read* them. Not just what they're saying, but what they *mean*. What they want. What they're afraid of. Who's genuine and who's performing." She gestured between them. "You're genuine. Maybe too genuine for your own good, honestly. You meant every word you said to Malfoy on that train, and you'd say it again even knowing the consequences, which is either incredibly brave or incredibly stupid and I honestly can't tell which but I'm leaning toward both."
"That's either conviction or stupidity," Severus said quietly.
"It's both," Rosmerta replied with a grin. "Best things usually are. But here's what I think—I think you're going to need allies in this house. *Real* allies, not just strategic convenience or temporary arrangements or people who pretend to agree while they figure out how to use you. People who actually share your values instead of just performing agreement while they position themselves for maximum advantage."
She extended her hand formally, like she was proposing a business arrangement rather than a friendship. Like this mattered. Like she'd thought about it.
"So here's what I'm offering: Alliance. Mutual support. Honest communication—and I mean *actually* honest, not Slytherin 'technically true but strategically misleading' honest. We watch each other's backs, share information, coordinate our approaches to navigating this particular snake pit. And—" she added with particular emphasis, "—we maintain our friendships outside Slytherin without apology, because screw Malfoy's version of house loyalty. Real Slytherins build alliances wherever they're useful and advantageous, not just within approved blood status categories."
Severus stared at her extended hand. Trying to process what she was actually proposing. What the catch might be. What she gained from allying with a half-blood first-year with no family connections and a target on his back from one of the most powerful families in magical Britain.
"Terms?" he asked finally, because everything in Slytherin had terms. Conditions. Escape clauses.
"Okay, so—" Rosmerta's expression turned more businesslike, though her enthusiasm remained evident. Like she'd been waiting for him to ask this. Like she'd prepared. "First: No backstabbing each other. Like, at all. We can politic with everyone else, play whatever games we need to play to survive, but between us? Straight talk. Complete honesty. No hidden agendas or secret plans to undermine each other because I've read enough Slytherin history to know that's how alliances collapse and I'd really prefer ours didn't."
"Agreed," Severus said immediately. "What else?"
"Second: We share information. I tell you what I'm hearing in the social circles—and trust me, I *will* hear everything because people always underestimate how much the friendly girl is actually paying attention, which is basically their first mistake and my primary advantage. You tell me what you're planning strategically, what threats you're seeing, what opportunities you're identifying. Full intelligence cooperation, no holding back the good stuff because you think I can't handle it or might misuse it."
"Information sharing," Severus confirmed. "Mutually beneficial. Makes sense."
"Third—" and here Rosmerta's expression turned slightly defiant, like she expected argument, "—we maintain our friendships outside Slytherin without apology. The Evans twins, Potter, Black, Lupin, all of them. Because screw Malfoy's version of house loyalty that's really just thinly disguised bigotry pretending to be tradition. Real Slytherins build alliances wherever they're useful and advantageous, not just within approved blood status categories, and if that makes us blood traitors in their eyes then honestly I'm fine with that because their opinion is worth approximately nothing and also they can go fuck themselves."
The profanity surprised him. Delivered so casually, like she'd been holding it back and finally let it slip. Like she *meant* it.
"You're proposing we openly defy the blood purity faction's social expectations," Severus said carefully.
"I'm proposing we use *actual* Slytherin values—strategic thinking, practical alliance-building, resourcefulness—instead of the racist bullshit they're trying to pass off as house tradition," Rosmerta corrected firmly. "There's nothing in Salazar Slytherin's actual founding principles that says we have to be bigoted assholes. That's just the current fashion among people who confuse cruelty with cunning and think being mean to people for things they can't control counts as ambition."
"The current fashion supported by significant family wealth and political influence," Severus pointed out.
"Sure, but fashion changes," Rosmerta replied with a shrug. "And we're playing a long game here. Seven years is a long time. Plenty of opportunity to shift the culture if we're smart about it, strategic about it, and also willing to be absolutely insufferable to blood purists in ways they can't quite pin down but definitely makes them uncomfortable." She grinned. "I'm very good at being insufferable. It's one of my most underrated skills."
Severus studied her for a long moment. This girl who looked like sunshine and talked like a strategic planner. Who offered alliance with the kind of directness that was either refreshingly honest or spectacularly naive. Trying to determine if she understood what she was proposing. What it would cost. What they'd be up against.
"You realize Malfoy's faction will target us," he said quietly. "Social isolation at minimum. Possibly harassment. Potentially actual danger if they decide we're enough of a threat to require more aggressive intervention, which given how magical society works is not actually outside the realm of possibility."
"Yeah, I figured," Rosmerta said calmly. "But here's the thing—they'll target you anyway because you already made an enemy of Malfoy on that train. Like, that ship has sailed, caught fire, and sunk dramatically beneath the waves. And they might target me eventually because my gran was Muggle-born and apparently that's enough to make me suspect in the eyes of people who care about that stuff, which seems like a lot of effort to put into caring about something completely irrelevant but apparently that's how they spend their time."
She leaned in closer, voice dropping to something more intense. "So we can either face that separately, isolated and vulnerable, or we can face it together with mutual support and coordinated strategy and the knowledge that someone actually has our back. I know which option I prefer, and I'm betting you do too."
"Together," Severus said softly, feeling something that might have been hope stirring in his chest. Unfamiliar. Dangerous. Possibly wonderful. "Coordinated strategy. Mutual protection."
"Exactly." Rosmerta's smile returned—bright and determined. "So? Do we have an alliance? Are we doing this? Are we about to become the most inconvenient first-years Slytherin has seen in decades?"
Severus extended his hand, meeting her grip with careful firmness. Her hand was warm. Smaller than his. Grip surprisingly strong.
"Alliance accepted," he said formally, because this felt important. Worth marking properly. "Honest communication, information sharing, external friendships maintained, coordinated resistance to blood purity faction's social pressure and general bullshit."
"Perfect," Rosmerta said with obvious satisfaction, shaking his hand with enthusiasm that bordered on aggressive. "We're going to be absolutely insufferable to the blood purists, and I'm going to love every minute of it. This is going to be *great*. Possibly terrible, but in a great way."
They shook hands properly, sealing the agreement with formal gravity that felt appropriate for establishing what might be the most important alliance either of them made at Hogwarts.
"One thing," Severus said carefully, because if they were doing honest communication, he should probably disclose this immediately. "Since we're agreeing to share information—I should tell you that I have an existing intelligence arrangement with Natalia Evans. For coordinating cross-house strategies and sharing information about potential threats. Nothing formal, just... practical cooperation."
Rosmerta's eyes widened. Then she broke into a delighted grin that suggested she'd just been given the best present ever and possibly also Christmas had come early.
"You have a *spy network*," she said with obvious awe. "Severus Snape. We've been at Hogwarts for literally six hours and you've already established intelligence-gathering protocols with a Gryffindor operative. That's the most Slytherin thing I've ever heard and also kind of genius and also *exactly* the kind of thing I would have suggested if you hadn't already done it, which means we're already thinking strategically aligned and this alliance is going to work *perfectly*."
"It's practical," Severus said with as much dignity as he could muster while fighting the urge to smile at her enthusiasm. "Given the circumstances, it seemed prudent to establish secure communication channels between houses for coordination purposes and also because Natalia is terrifying when she wants to be and having her as an ally seems significantly better than having her as an enemy."
"It's *brilliant*," Rosmerta corrected enthusiastically. "And if you need another set of eyes and ears in Slytherin? I'm your girl. I hear *everything*—comes from growing up in a pub where people constantly forget that the landlord's daughter is right there with fully functioning ears and excellent memory and a natural tendency toward nosiness that my parents call 'concerning' but I call 'gathering useful information.'" She bounced slightly on her toes again. "Plus I'm naturally nosy, which is usually considered a character flaw but is actually a fantastic intelligence-gathering asset when you think about it strategically."
"You're offering to join the intelligence network?" Severus asked, wanting to make absolutely certain he understood what she was proposing. Because this was important. This mattered.
"I'm offering to be your Slytherin specialist," Rosmerta clarified with obvious excitement. "You coordinate with Evans for Gryffindor perspectives and strategic planning, I handle the Slytherin gossip pipeline and social dynamics analysis. Between the three of us, we'll know everything that's happening in both houses before most people have finished thinking about it, which gives us significant tactical advantage and also is just really satisfying because knowledge is power and I like having power."
She paused, then added with a slight smirk: "Also, people tend to gossip around me because I look friendly and harmless. Which I am, mostly, but I'm also listening to *everything* and cataloguing it for later use and occasionally judging them silently while they tell me things they probably shouldn't. Classic intelligence asset profile—likable personality, trustworthy appearance, natural curiosity, excellent memory for social details, and the kind of face that makes people think 'oh, she's sweet' right before I destroy them with information they didn't know I had."
Severus felt something shift in his chest. That persistent anxiety that had been his constant companion since the sorting—the fear that he'd be alone in Slytherin, isolated and vulnerable—fading, replaced by something that felt dangerously like optimism.
"You understand what you're proposing," he said quietly. Not a question. A verification. "This isn't just casual friendship or convenient alliance. This is active intelligence gathering, potential opposition to established power structures, coordinated resistance to dominant house faction. It's dangerous. It's complicated. It's probably going to make our lives significantly more difficult than they would be otherwise."
"Yeah, I know," Rosmerta replied seriously, her usual brightness dimming slightly as she acknowledged the reality of what they were discussing. "But you know what's also dangerous? Doing nothing. Letting people like Malfoy set the terms, define the culture, determine who's acceptable and who's not based on nothing but blood status and family wealth and which ancestors they can name-drop at parties. That's *also* dangerous, just more slowly. Like poison instead of a knife—takes longer, but you're just as dead at the end."
She met his eyes directly. Expression fierce with determination that seemed almost out of place on someone who looked like she should be in Hufflepuff baking cookies and being generally delightful.
"I didn't come to Hogwarts to keep my head down and survive by accepting whatever the most powerful people say is true," she said firmly. "I came here to learn magic, make genuine friends, and maybe—if I'm really lucky and also strategic about it—help make things slightly less terrible for people who don't fit into neat little pureblood-approved categories. If that requires intelligence gathering and coordinated resistance and being absolutely insufferable to bigots, then okay. I'm in. I'm *all* in."
Severus studied her for a long moment. This girl who'd been sorted into Slytherin but seemed to embody every value Gryffindor claimed. Who offered alliance with the kind of genuine conviction that was either admirably principled or dangerously naive.
Possibly both.
Probably both.
*Definitely* both.
"Deal," he said finally, with decision. "Welcome to the intelligence network, Rosmerta Gappleford. Official position: Slytherin social dynamics specialist and gossip coordinator. Unofficial position: person who makes me feel slightly less terrified about the next seven years."
"Best job title ever," Rosmerta declared happily. "I'm putting that on my future resume. Right under 'excellent at eavesdropping' and 'professionally nosy' and 'makes friends with people who have spy networks because apparently that's a thing I do now.'"
Despite everything—the stress, the fear, the very real dangers they'd just agreed to face—Severus felt himself actually smile. Small, barely visible, but genuine. The kind of smile that felt unfamiliar on his face but not unwelcome.
"Question though," Rosmerta continued, her tactical mind clearly already working through logistics. "How does the communication work? Like, do we have scheduled meetings, dead drops, coded messages written in invisible ink? Because I've read spy novels and I have *ideas*, most of which are probably impractical but at least one of which might be genuinely useful if we adjust for the fact that we have magic and the spies in novels usually don't."
"Linked diaries," Severus replied, grateful that he could offer something more sophisticated than "we'll just talk in corners and hope nobody notices." "Enchanted by Hadrian, who's brilliant with enchantment work and also seems to enjoy creating spy equipment for first-years, which suggests he's either going to be very helpful or very dangerous depending on how his interests develop. You write in one, it appears in the matching diary. Completely secure, no risk of interception, can't be traced unless someone is significantly better at enchantment work than Hadrian, which seems unlikely."
"That's *so much cooler* than coded messages," Rosmerta said with obvious admiration. Eyes lighting up like she'd just discovered something wonderful. "Can I get one? For official network coordination purposes and also because that's genuinely impressive magic for a first-year and I want to examine it and possibly ask Hadrian approximately seven thousand questions about how it works?"
"I'll ask Natalia," Severus promised. "She coordinates with Hadrian for equipment requests since he's in Gryffindor and I'm trying to minimize suspicious cross-house interactions until we've established better cover for why we're talking. If he can make another matched set, we can establish three-way communication—you, me, and Natalia as central coordination."
"Perfect." Rosmerta glanced around the common room again, her expression turning more calculating. "Okay, so—immediate tactical situation. Malfoy's been watching us. Don't look now—seriously, don't, it'll be too obvious—but he's definitely noticed that we're having an extended conversation by the entrance instead of immediately scattering like the other first-years who are behaving like normal terrified eleven-year-olds."
Severus resisted the urge to look. "Assessing whether we're potential recruits or potential threats."
"Probably both," Rosmerta agreed. "We're first-years, so theoretically moldable. But you've already made an enemy of him, and I'm—" she gestured at herself with theatrical flair, "—not exactly pureblood elite material given my pub-owning parents and Muggle-born gran and general tendency to say things that are too honest for polite society. So we're complicated. We're interesting. We're probably going to be problems."
"Complicated is better than dismissed," Severus observed. "Dismissed means they ignore us until we're suddenly dangerous. Complicated means they pay attention, which gives us opportunities to influence their assessment and also to gather information about them while they're trying to figure us out."
"See, this is why we're going to work well together," Rosmerta said with satisfaction. "You think like a strategist. I think like someone who's watched drunk people try to navigate social situations for years and learned that most social rules are made up and the points don't matter but everyone pretends they do anyway. Combined, we're basically unstoppable. Or we'll get destroyed by people with significantly more resources and experience, but at least we'll go down fighting instead of just rolling over and accepting that blood purist assholes get to define reality."
"Possibly," Rosmerta acknowledged cheerfully. "But at least we'll go down fighting instead of just accepting that blood purist assholes get to define reality, which honestly seems like a better option even if the survival odds are slightly worse and we might end up as cautionary tales told to future first-years about what happens when you challenge established power structures."
Severus found himself nodding slowly. "Agreed. Strategic defiance with coordination is better than isolated compliance."
"Exactly!" Rosmerta beamed at him like he'd just solved a particularly difficult puzzle. "Okay, tactical question—should we head to the dormitories now and establish our territory, or stay here a bit longer to observe the social dynamics and gather initial intelligence? Because both options have merit but also potential drawbacks and I'm genuinely uncertain which is strategically optimal."
"Dormitories," Severus decided after a moment's consideration. "We need to secure beds before all the good spots are taken. Plus, excessive observation on first night looks like either fear or reconnaissance, both of which paint targets on our backs in different but equally problematic ways."
"Good thinking," Rosmerta approved. "Also, I'm actually kind of exhausted? Today has been approximately seventy-three hours long and I need to sleep before I start saying things that are too honest even for our 'complete honesty' alliance terms, which is saying something because apparently my filter is already compromised."
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