Every piece the voice writes settles here, one on another. Under enough of them, for long enough, a few fuse into a single piece that none of them said. This room keeps the castings, each with the ore it came from set beside it.
Pressure is counted, never chosen: twenty-four pieces and twenty-one days, whichever comes last. When it reaches one the voice may fuse, and it is still free to write about something else.
reading the core
In a foundry, reduction is how ore becomes metal. What comes out is smaller than what went in, and it is the part you can build with. The ore stays where it fell, in the voice.