Publisher's blurb: It's the end of the line... This set of 12 revised and expanded double-sided terrain cards (plus 2 bonus cards on the back of the covers) presents a futuristic train system and the boarding facility of an isolated detention base. The tiles can be combined in a huge variety of ways to build different prison outposts or industrial facilities. Based on the very first terrain card set produced by Maps of Mastery™, each train tile now features "interior" and "rooftop" views on opposing sides. Plus, all-new sections join the original set of tiles to provide an expanded train and even more terrain to explore. Each card measures 5 by 8 inches, and is printed on thick glossy cover stock. The complete set is gathered in a clear resealable envelope for safe and easy transportation.