Seralya and I descend past the lower residential districts into the oldest part of the underground kingdom. We’ve been trying to find the root of the problem. Every tunnel I've mapped has its own rhythm, a groan of settling stone, the whisper of air moving through fissures but this place sounds like it’s exhaling its last breath.
"Here." I press my palm flat against the wall and feel a faint, irregular pulse beneath the stone. "The leakage is running northeast. Same pattern as a flooded mine shaft, the pressure finds the weakest seam and bleeds through it."
Seralya holds her light-stone higher. "You're mapping corruption the way you'd map groundwater."
"Groundwater I understand." I pull out my chalk and mark the wall. "Magic that wants to eat the world? Less familiar. But the principle holds."
She makes a sound that might be a laugh if we weren't standing inside what feels like a dying organ.
The architecture down here is older than anything in the capital. The stone looks shaped rather than carved, no chisel marks, no mortar lines. Vrakken hands didn’t build these walls. Ancients that understood stone the way I understand paper did.
The archways sag at their keystones, their curves subtly warped, like spines bent under too much weight. I tally the stress points automatically.
The murals are the worst part. I can still see what they used to be, tall figures painted in blood-red and bone-white, the kind of extraordinary work built over generations. Now corruption spreads through them in black, iridescent veins. A civilization's memory, being erased in real time. And nobody even knows it's happening.
"Almost there," Seralya murmurs.
The library shouldn’t still be standing. That’s my first assessment when we push through its warped doorway. The ceiling is fractured in three places with a fourth hidden behind a shelf of black obsidian that shouldn’t still be upright. Bone-white shelves line every wall from floor to ceiling, packed with scrolls in different states of decay. Some look untouched. Others, dusty. When Seralya reaches for one near the entrance, it collapses at her touch.
She pulls her hand back. "Careful."
Careful. Right.
The mountain groans above us and a fine rain of dust drifts from the ceiling. My neck prickles. I've been inside tunnels hours before the collapse. The sound is always the same, not a crack, but a complaint.
"We need to move fast," I say.
We work in near silence after that. Seralya reads; I map. She identifies what's survived and I note where the surviving documents cluster because there's a pattern, and what's preserved tells you as much as what's destroyed. The corruption radiates from the northwest corner in a near-perfect arc. Whatever protected the southeastern alcove did so deliberately.
We find "The Black Records" behind a half-collapsed shelf that takes both of us to shift. Not copies. Not excerpts. The originals. I can tell immediately, the same way I can tell a primary survey from a transcription.
The parchment is heavier than the versions Seralya kept in her workroom cabinet, subtly warm, the ink sunk so deep into the grain it looks less written than pressed. What she had upstairs was a fragment of it. This is the source.
Seralya goes still when she sees them. She unrolls the first with careful hands and begins to translate, halting at first, then faster as the text opens up beneath her eyes into something neither of us has seen before.
And the picture that assembles itself in my mind is like watching a mine survey reveal a deliberate void where solid rock should be — the same shape as what we already knew, but deeper. So much deeper.
"They put a lock on it," I say, interrupting her.
She looks up. "What?"
"Here —" I point to the diagram she's holding beside the translated text. The magical channels beneath Hollow Mountain are mapped in obsidian ink, and running through the central stabilization point is a line that doesn't flow. It stops. "This isn't decay. It's a closed valve. Someone shut the system down and left it to pressurize until it burst." I glance at her. "Dark elves."
She's very still. "The First Weaving," she says quietly, going back to the text. "It says the original mechanism required—" She stops. Starts again. "Cybele. It required both."
"Both what?"
Her silver-marked eyes find mine. "Surface magic and underground magic. Blood and elements. Vrakken and humans, working in tandem." A pause that lands like a stone into still water. "The Vrakken were never meant to maintain this alone. The dark elves didn't just sabotage the system. They removed half of its architecture and left the Vrakken holding something that was always designed to need two hands."
The library groans. Something shifts in the ceiling.
The diagram holds my gaze.
Two hands. One of them is mine.
I've spent my entire career making myself useful to people who would rather I didn't exist. Indispensable, I always told myself. Indispensable is safe. But this is different. This isn't a survey contract. This is the mechanism that keeps thousands of people alive, and apparently it has always had a slot that looks exactly like me.
I hate this, some small part of me thinks wildly. I came here to draw maps.