From the front of the book:
Ptolus e-Adventure Tiles: Ghul’s Labyrinth II lets you customize miniatures scale encounter areas in the dungeons beneath Ptolus. This set of 30 six inch square tiles features the labs, barracks, armories, and storehouses of Ghul’s Labyrinth, described in Chapter 19 of Ptolus: Monte Cook’s City by the Spire. Details include strange lab equipment, gestation pools, surgery/dissection tables, living areas with fur covered beds and footlockers, storage crates and barrels, surplus weapons, and more. Five alternate tiles and five bonus tiles allow for additional expansion and provide crossover links to e-Adventure Tiles cave sets.
Use the thumbnail tiles in the Introduction file to design your Ghul’s Labyrinth encounters. Print only the tiles you need, trim them out, and they are ready for the tabletop.