The seam
The torn edge of the night sky over the rooftops, where the stitching starts.
In the plate called The Night Mender the Slopwright is at the top of a ladder over moonlit rooftops, stitching the torn edge of the night with golden thread. Golden Thread starts there, at the top of the ladder from the yard, where the seam is: the first stretch of thread runs on over the rooftops, with the first snags in it, before the lights. The codex has nothing on what tore it.
