From publisher blurb: Players: READ THIS BEFORE ENTERING. Inside this handy player-facing accessory you'll find Unfathomable Comics! A semi-painless introduction to the feel of the setting 2 playable species: Underworld Otter and Woolly Neanderthal 2 character classes: the Citizen Lich and the Underworld Ranger Unsavory spells Weird new items A partial, probably faulty map of the Underworld Rumors and semi-useful tips Complete background information for the initial scenario (read it and save your DM time and aggravation!) A custom Operation Unfathomable character sheet Please note that this Player's Guide duplicates the spells and items from the main Operation Unfathomable module