The catacomb plans of the Necropolis, revealing a subterranean maze that dwarfs the Iron Tangle — auto-installed to Carl's party map.
The Necropolis Map is the paper scroll Carl finds on a table in the City Hall catacomb — the catacomb plans of the Necropolis of Anser. Picking it up installs it to the maps of Carl's whole party and dissolves the scroll, revealing a subterranean maze so vast it makes the Iron Tangle "look like child's play." Because it also destroyed the only copy the subterranean crawlers were counting on, it enrages Low Thi's party — and Carl promises to re-transcribe it to them.
A roll of paper that dissolves to dust once read, its data added to the party map.
The master map of the Necropolis's subterranean maze, key to the tomb quadrant.