Turn 4 of 7

I take in the scene, and act on what matters most.

You cross to the shelf. The jars rattle as you grip the edge and pull, the sound sharp and ordinary in a room that has stopped feeling ordinary. You have moved this shelf before — cleaning behind it was a third-year task, tedious and necessary — but you never pulled it away from the wall completely. Never had a reason to. The instruments clink against each other, the sealed blue bottle trembling, and you swing the whole assembly sideways until it stands at an angle to the wall, propped against a stool. The seam is fully visible now: a door frame cut into the black glass with absolute precision, edges faintly iridescent, as though the tower itself is a single piece and this was the one place it agreed to be divided.

There is no handle. No keyhole. No mechanism you can see — only the seam, hairline and clean, running from floor to a height just above your head. You press your palm flat against it and feel nothing. No warmth, no cold, no hum of hidden workings. Just glass, smooth and indifferent. You press harder, slide your hand along the seam, search for a catch or lip. Nothing yields.

"You won't force it," Yrenne says from behind you, her voice carrying the particular flatness of someone stating a fact they have stated before. "The first door opens to a question, not a key. Ask it what it is, and it will tell you what it wants to know." You turn. She is still at her bench, hands in the lattice of light, but her eyes are on you. There is something in her expression you have not seen before — not warmth exactly, but the absence of the careful distance she usually maintains. As though she has lowered a wall of her own and is waiting to see what comes through.

"Ask the door," she repeats. "Not me. I've said what I intend to say about it." Below your feet, Cassiel's footsteps resume — slower now, measured, moving toward the stairwell. You feel it through the glass floor more than hear it: a vibration like a heartbeat, deliberate and questioning. The bowl of not-water sits on the bench between you and Yrenne, its false stars drifting in patterns that might be random and might be a constellation you have never been taught to read. The key sits heavy in your pocket. The door waits.

You face the seam in the glass and ask the door what it wants to know. The glass changes. The seam widens by a fraction, not opening but acknowledging, and from somewhere deep inside the wall you hear a sound like breath drawn in. Then a voice, or something that arranges itself into a voice — low, resonant, coming from the glass itself: "What did she promise you?" The question fills the room. Yrenne's hands go still inside the lattice of light. She does not look away from her work, but you see her shoulders tighten, the muscles along her jaw pulling taut. The question was not meant for her, but she hears it. She hears everything in this tower. Below, Cassiel has stopped moving entirely. The silence is so complete you can hear the false stars in the bowl, a faint crystalline whisper as they turn. You stand at the threshold and realise — with the slow, sinking clarity of someone stepping onto thin ice — that you do not know. Nine years of service, and she has never told you what the tenth year holds. Only that it would come. Only that you would find out what for.