From the back of the book:
Sacramento... We Have a Problem!
Most cowpokes with a lick of sense know the recent alliance between Gomorra's resident crackpot scientists, the Collegium, and Dr. Darious Hellstromme spells trouble. And these two groups might just whip out a thesaurus for even more chaotic misadventure!
In this 64-page adventure, the posse finds themselves thrown into a breakneck chase through the Great Maze to recover Fineas Von Landingham's airship and a top-secret Collegium project to boot! Are these events related? It wouldn't be much of a conspiracy if they weren't!
As if this weren't bad enough, the heroes might be forced to enter the slimy world of territorial politics! That ought to send a shiver down even a Harrowed's rotten spine!
Like Ghost Busters - a great way to lead into this adventure, by the way! - Rain o' Terror gives your posse the chance to influence the course of events in the Maze and Weird West in a major way. If they play their cards right, they may even carve their names on the list of Deadlands' greatest heroes!