From publisher blurb: What you don't know can hurt you. Introduce the paranormal to your World War Two gaming. Men and Monsters Book 1: The Unseen deals with invisible and shadowy threats ad allies for the Greatest Generation. The Axis are already unleashing the unnatural on the battlefields. Do the Allies dare to follow? The Haunted -they're never really alone. Horlas -invisible monsters that make you doubt your own mind. Agent Unseen -what will give out first, the formula making you invisible or your mind? Kilroy -Kilroy IS here. Men and Monsters is designed for Operation White Box but can be used with ther OSR systems.