Mei Lin gestured for Shen Yue to sit beside her, not across. The distinction was deliberate, shifting from confrontation to conspiracy. In the corporate world, Shen Yue had used the same tactic during hostile negotiations, physically repositioning parties to unconsciously signal alliance.
She sat, her back against the shrine's wooden frame and legs stretched out in front of her. The frost patterns on her calf pulsed faintly, matching the rhythm of the demon orb. Mei Lin noticed but pretended not to.
"You need to understand what you survived," Mei Lin began, her voice dropping to the cadence of a teacher. "And to understand that, you need to understand dungeons."
She drew her sword fully for the first time. The blade was beautiful in the way surgical instruments were beautiful, all function and lethal elegance. She held it point-down, resting the tip against the shrine's wooden floor and began to trace symbols in the dust with the edge.
"Before the Cataclysm, this world was whole. One realm, one set of natural laws. Then the gods warred, reality fractured and the dungeons appeared." She drew a circle then bisected it with jagged lines.
Shen Yue watched the diagram take shape. From her perspective, it looked like a corrupted database, sectors of a hard drive that had been physically damaged and now leaked garbage data.
"Dungeons are categorized by threat level," Mei Lin continued, adding numbers around the circle. "Tier One through Tier Seven. Each tier corresponds to the minimum cultivation level needed to survive it."
She began listing them, her sword tip marking each classification:
"Tier One: Beginner dungeons. Qi Gathering cultivators can clear them. Threats include spirit beasts, minor traps and environmental hazards. The rewards are Spirit Stones, basic cultivation manuals and low-grade weapons. These are training grounds, essentially. The kingdom allows licensed adventurer groups to farm them for resources."
Shen Yue filed that away. Just like a regulated industry, there would be permits, oversight and opportunities for corruption.
"Tier Two: Foundation Building minimum. The threats escalate. It contains evolved beasts, complex formation arrays and cursed items. Rewards improve accordingly: Mid-grade Spirit Stones, elemental materials and foreign technique scrolls. Still legal to enter, but you need guild certification and insurance bonds."
"Insurance bonds?" Shen Yue interrupted.
"To pay for recovery of your corpse if you die. And to compensate the kingdom if you trigger something that causes a dungeon break." Mei Lin's expression darkened. "That's when a dungeon's containment fails and monsters spill into the surrounding area. It happened in the southern provinces five years ago. A Foundation Building team got greedy, cracked open a seal they shouldn't have, and three villages were wiped out before Justicars could respond."
She added another layer to her diagram, this one spiking outward like an explosion.
"Tier Three: Core Formation required. This is where dungeons stop being treasure hunts and start being death sentences for the unprepared. The monsters here have intelligence, they set ambushes and use tactics. The environment itself becomes hostile. There are gravity shifts, time dilation and spatial distortions. The Rotwood Catacombs where you were taken was classified as Tier Three."
Shen Yue's attention sharpened. "Was classified? Past tense?"
She drew a circle beneath the first, connected by a dotted line and surrounded it with symbols that looked like warning signs.
"Tier Four: Nascent Soul minimum. These dungeons appear mostly in the Northern Wastes and the Deep Ocean Trenches. The kingdom doesn't permit civilian access. Only military expeditions with full Justicar support. Monsters here can threaten cities. The rewards include artifacts that can alter cultivation paths, ancient techniques and materials for forging soul-bound weapons."
"Tier Five: Spirit Severing required. There are only three known Tier Five dungeons that have ever appeared in the entire realm. These dungeons are alive, Shen Yue. They think. They hunt. They have intent."
Mei Lin paused, letting that sink in. Shen Yue felt her skin crawl. In her old world, the idea of malevolent architecture was science fiction. Here, it was a documented fact.
"Tier Six: Void Tribulation minimum. There are maybe seven people in the entire realm with the cultivation level to survive Tier Six and they won't go near them. Not because they can't win but because victory is meaningless; it comes with a great sacrifice. These dungeons don't have many treasures. The few treasures found here though extremely difficult to get, are of high value. These treasures are always guided by traps set, traps so complex and lethal that even these people have to take utmost caution. Traps designed by whatever existed before the Cataclysm. The few records we have suggest these dungeons were prisons. Don't ask me of whom, but they had to be strongest entities that even the gods had to take these approach of locking them up."
"And Tier Seven?" Shen Yue asked quietly.
Mei Lin's hand stilled. "There's only one known Tier Seven dungeon. Its located in upper floors of the Zenith Tower. It rises from the center of the Forbidden Continent, visible from three hundred miles away. No one knows how tall it is because no one's ever reached the top. The Light Palace sends expeditions every decade. None return. The current theory is that Tier Seven dungeons aren't actually dungeons. They're gateways to other realities other dimensions where cultivation laws don't apply."
She set her sword aside and looked directly at Shen Yue. "You survived a Tier Six dungeon. A fourteen-year-old Hollow with no cultivation base survived what kills Void Tribulation experts. Do you understand how impossible that is?"
"I had help," Shen Yue said, thinking of WuJi, the mysterious cultivator who'd appeared and disappeared. "And luck."
"Luck? Something wanted you to take that orb. Something guided you to that chamber." Mei Lin's voice was grim. "Which brings us to demons."
She stood, sheathed her sword and began to pace. Teaching mode fully engaged.
"Demons are classified separately from dungeon tiers because they can appear anywhere. They're categorized by level: Lesser, Greater, Abyssal and Primordial."
"Lesser Demons are what most people think of when they hear 'demon.' Corrupted beasts, low-level undead with minor possessing spirits. A Core Formation cultivator can handle them solo. They're dangerous to civilians but not existential threats."
"Greater Demons require teams. They have intelligence and powers that warp natural law. The Plague Hounds you encountered fall into this category. They spread corruption, turn environments hostile and reproduce through infection. A Greater Demon outbreak can devastate a province if not contained quickly."
Shen Yue remembered the Plague Hound she'd corrupted with the orb's power. If that thing had been Greater class...
"Abyssal Demons are named threats. They have identities, histories and grudges. They're remnants of the Cataclysm, entities that were powerful before reality broke and became monstrous after. The kingdom maintains a registry of thousands of known Abyssal Demons. They live in the lower levels of the Zenith Tower. Not even strongest cultivators dare venture there. We pray they never invade outside the tower. "
"And Primordial Demons?"
Mei Lin stopped pacing. "They're myths. Legends from before the Cataclysm. The texts say there were seven Primordial Demons, each embodying a fundamental corruption: Hunger, Despair, Madness, Rage, Decay, Void and Silence. They're described as forces of nature rather than creatures. If they existed, they'd be extinction-level threats."
"That's sounds comforting." Shen Yue said.
She looked at the demon orb's corruption on Shen Yue's arm as she sat down again, this time facing Shen Yue directly. "Now, cultivation ranks. You need to understand the power gaps."