Turn 3 of 9

Pause on the landing and speak to Cassiel

The key is in your hand. The weight of it is real in a way the bowl was not — dense, grainy, warming slowly to your grip. You pocket it and turn for the stairs, and Yrenne does not look up. The spiral staircase of black glass winds down through the tower's core, and each step rings faintly under your boot, a sound like a finger tapped against crystal. The walls here are thinner than in the rooms, and you can feel the morning wind pressing against the outside of the glass, a vibration more than a sound, the way a held breath is almost a voice.

Cassiel is on the landing below, leaning against the railing with the easy, jointless grace that has always unsettled you. You have shared meals with this person — or rather, you have eaten while Cassiel sat across the table and watched, and sometimes read, and never once lifted a fork. Twenty-two, or near enough, with a face that seems to shift between beautiful and strange depending on the light, and dark eyes that give back nothing. Cassiel wears the same grey学徒's robe you do, but it hangs differently — as though the cloth has decided to cooperate with them in a way it does not cooperate with you.

"You took the key," Cassiel says. Not a question. Their voice is low and dry, like paper being folded.

"She told you?"

"I listened." Cassiel does not move from the railing. Their gaze drifts to the pocket where the key rests, then back to your face.

"The eighth one reached for the bowl too. Did she tell you that?"

The landing is narrow, two people and a railing and the open spiral of stairs dropping away below. Cassiel's stillness is the thing you have never been able to categorize — not hostile, not friendly, not indifferent. Watchful, maybe, the way a mirror is watchful. You have worked beside this person for years, carrying water, cleaning crucibles, and you still do not know whether Cassiel is a servant, a prisoner, a student, or something Yrenne made for a purpose you have not been shown. They do not eat. They do not sleep, as far as you have ever observed. And they are always, always in the tower, as though they are part of its architecture.

"What happened to the eighth?" you ask. Cassiel tilts their head, and the morning light through the black glass catches one side of their face and leaves the other in shadow, and for a moment they look older than twenty-two — ageless, patient, something worn smooth by a longer current of time than you can read.

"He reached for the bowl," Cassiel says. "And then he reached for the rooms. The order matters. She told him that, and he did not listen, and by the time he understood what the bowl had cost him, he did not have enough left to finish the rooms." Cassiel pushes off the railing, and the movement is fluid and strange, like water deciding to flow.

"You listened. That is already more than he managed. But listening is the smallest part." They step past you, upward, toward the workroom you just left, and pause on the first stair.

"The first room is on the fourth floor, east corridor. The lock will know the key. The room will not hurt you — none of them will, not the way you are imagining. The hurt comes after, when you understand what you learned."

They are gone before you can answer, ascending the spiral with that soundless stride, and you are left on the landing with the key heavy in your pocket and the word *enough* turning over in your mind. Enough of what. Cassiel did not say. The east corridor of the fourth floor is two flights below you, and you have walked past it every day for nine years, and you have never once seen a door there that looked locked — only a stretch of black glass wall that you assumed was solid, the way you have assumed many things about this tower that may not be true.