From the front of the book:
Welcome to Ptolus Adventure Maps: The Ghostly Minstrel. Inside you will find 24 terrain tiles detailing the three floors of this Midtown landmark and focal point of the delvers who plumb the depths below the city.
An inn, a pub, and a restaurant all in one, the Ghostly Minstrel is the adventurer’s meeting place of choice. It has earned a reputation as the central feature of Delver’s Square and is sure to become a recurring fixture in any Ptolus campaign. Ptolus Adventure Maps feature detailed miniatures scale map tiles of locales pulled straight from the pages of Monte Cook’s Ptolus! Simply print them, trim them out, and bring the excitement of the City by the Spire to your tabletop.