From the front cover of the book:
They might not be very strong and they might not be very smart but the trouble with goblins is that they always cause more trouble than they are worth. Ptolus Adventure Maps: The Trouble With Goblins contains five miniatures-scale map tiles depicting the recently haunted old Greyson House. Designed for use with the first level adventure The Trouble With Goblins found in chapter 33 of Ptolus: Monte Cook's City by the Spire, these tiles will add a new dimension to an evening of table top adventure, horror, and comedy.
This location can be expanded into a starting point for further Ptolus adventures with the upcoming Ptolus Adventure Tiles: Ghul’s Labyrinth sets.