exchange
The Shadow Exchange: a domed hall at the centre of the night quarter, its trading floor ringed by a gallery of two hundred brass lamps, every one licensed and numbered. Here shadows are entered, quoted, pledged and redeemed. At the centre, on a tall desk of black oak, lies the Ledger: three volumes bound in green cloth that have never left the room, in which every shadow in Gnomon stands with its owner, its length at the ninth hour, its grain and its marks. The Registrar writes in it with a stee...
Located in The Ledger of Shadows.