Every asset needs a door out that doesn't run through my office, he'd said. Keep this. Don't use it unless everything else has already failed and you need something only I could have arranged without my own name attached to the arranging. I built one door like this for myself, a long time ago, before either of us were standing in this room. I've never had to use it. I hope you never do either.
He had put it in a drawer and not thought about it again for two years, the particular carelessness of a man who forgets a fire extinguisher exists until the exact moment the room he's standing in starts to fill with smoke.
He crossed to the small locked drawer beneath the fold-out desk now, the one that held the handful of things he'd carried aboard the Arctic that belonged to no mission and no report, and found the chit near the bottom, exactly where he'd left it, worn smooth at one edge from two years spent in a pocket he'd stopped checking, dulled at the stamp's edges the way any small object goes dull from being carried and never used.
He carried it to the ready room and set it on the table without a word, letting the others look at it a moment before he explained what it was, watching their faces shift, one by one, from confusion to a cautious, careful kind of hope.
"Zhang built a door that doesn't run through his own office," he said. "For me, specifically, when I took this commission. I don't know exactly what's behind it. I know it exists, and I know he told me himself he'd built one for his own use once, a long time before that, and had never needed to open it. If a careful man builds one door like this for someone he's recruiting, and mentions, almost as an aside, that he built a similar one for himself, I think it's worth asking whether that habit runs deeper than two doors. Whether a man that methodical builds contingencies the way other men build savings accounts, quietly, over years, without ever expecting to need most of them."
"You think he's got more than one built into this," Lyn said.
"I think a man who plans a personal failsafe message that fires automatically if he goes silent for six days is exactly the kind of man who plans more than one escape hatch," Taisen said. "And I think the recognition phrase he used to close every check-in signal, the one he's used since the beach, might not be an accident of habit. Still standing. Watching. Three words, repeated exactly the same way every seventy two hours without variation, never once shortened, never once expanded, even on the days he clearly had more to say and chose not to say it. A man that careful doesn't repeat a phrase by accident. He repeats it because it's meant to mean something to whoever's listening for it, beyond simply confirming he's alive to say it."
"You think it's a key," Alita said, slowly, following the thread with him, leaning forward now, elbows on the table.
"I think it's worth finding out," Taisen said. "The chit has a requisition code stamped into it. Requisition codes route to specific departments, specific stations, specific people who process them for a living. If this chit was built as a door that doesn't run through Zhang's office, it has to route somewhere that isn't Zhang's office either. Somewhere small enough, and far enough from the center of things, that nobody watching the three names on his list would think to watch it at all. A backwater. A place careers go to finish quietly rather than to advance."
"So we chase a stamp on a two-year-old chit and a phrase from a check-in signal," Camaro said, "on the theory that a careful man built himself an escape hatch nobody's supposed to know exists, and left the key to it in a drawer you forgot about for two years."
"Yes," Taisen said.
"That's thinner than the last theory," Camaro said, "and the last theory nearly got us caught."
"It is," Taisen agreed. "I'm aware of that, Ensign, and I'm not offering it to you dressed up as anything sturdier than it actually is. I've learned, across a very long life, that the difference between a good instinct and a desperate one isn't always visible from the inside while you're standing in it. I'd rather you tell me plainly if you think I'm confusing the two, here and every time it matters, than watch you decide privately that I've lost the thread and say nothing about it."
"I don't think you've lost it," Camaro said, after a moment, some of the flatness in her voice softening, not gone, but set down for the length of the sentence. "I think you're reaching for the only rope left hanging over the edge, and I think I'd be reaching for the same one in your position. I just wanted it said out loud that we all know how thin it is, before we spend two days finding out the hard way."
"Noted, and agreed," Taisen said. "It's thinner," he went on, "and it's also the only thread we have left that doesn't route through a name Fleet Command is already watching. I'm not asking anyone to trust it blindly. I'm asking for an hour to find out whether the code on this chit routes anywhere at all before we decide whether it's worth the risk of following it further."
It took considerably longer than an hour. Alita spent most of it hunched over the small terminal in the makeshift intelligence office, the same flickering strip light overhead, cross referencing the stamped code against the ship's own outdated copy of the Fleet requisition directory, three editions behind current and therefore, mercifully, still listing routing information that had since been quietly reassigned elsewhere in the newer version nobody aboard the Arctic had clearance to access anyway. It was slow, tedious work, the kind that produced nothing at all for long stretches and then, without warning, produced everything at once, and it was Alita who found it just past midnight ship's time, coming to find Taisen with something in her face that looked, for the first time in days, like actual hope rather than the careful, exhausting management of its absence.