Inside this terrifying tome are over 100 new creatures from all over the world. You’ll find everything from the oni of the Far East to the haunted U-boats of the Atlantic like Der Einzelgaenger ("The Lone Wolf"). You’ll learn the incredible secret behind the mysterious "Kill-Roy Was Here!", cower as you read about the true-life Leopard of Rudyaprarag, dread the killer "fog of war," and pray that the Lost Caravan of the Sahara does not find your oasis! Best of all, every creature’s description includes an adventure seed to help you work it into your campaign. You can write an entire adventure around your team’s encounter with the deadly denizens of the dark, or you can use them as macabre sidetrips on the way to their real missions! If that’s not enough for you, there’s a complete adventure inside, The Secret of the Caves, that will have your Weird Warriors quaking in their army-issued boots! The creatures found in this Game Master’s book are perfect for any theatre of Weird War Two, and many can be used in any other D20 game as well.