240 pages. Fully illustrated. Contains 2 short stories, entries for 24 different magical and mundane plants, 34 monsters native to Hot Springs Island, and details about the 6 factions that can be found there.

The Field Guide is written "in character" for the world, and is an in game object. Players are encouraged to reference it at the table as it contains plenty of hooks and reasons to travel through the Hot Springs Island sandbox.

The Dark of Hot Springs Island is a companion book to the Field Guide, and contains everything a Game Master needs to run a game there (except stats) in the system of their choice.