A Guild-granted map overlay exposing the Desperado Club's hidden passages, monster tunnels, potion market, and drug dens.
Carl requests the Desperado Club's secret passage network from the unseen Guild voice. A mass of spiders climbs his arm, frightening him, before extensive new geometry appears on his map.
The overlay reveals that the club is far larger than its public rooms suggest. Secret panels conceal drug dens, some tunnels contain monsters, and a hidden middle-floor market sells potions unknown even to Mordecai.
Carl plans to transcribe the relevant routes for Katia and use them to design an isolated encounter with Astrid. The complete absence of these routes from the Dungeon Anarchist's Cookbook makes him wonder whether the network is new.
A glowing multi-level nightclub blueprint spreading from tiny spiders across a crawler's interface.
The map supplies the missing terrain intelligence for the Astrid operation and new supply opportunities.