A terrifying World War Two setting for the Call of Cthulhu & Savage Worlds roleplaying games. Discover the secret history of World War Two: stories of amazing heroism, in which stalwart men and women struggled to overthrow a nightmare alliance of science and the occult; of frightening inhuman conspiracies from the depths of time; of the unbelievable war machines which were the product of Nazi scientific genius - and how close we all came to a slithering end! The Secret War has begun! Achtung! Cthulhu - The Keeper's Guide to the Secret War features a fantastic cover by Dim Martin, already well known to Achtung! Cthulhu fans for his inspiring cover and interior art for the Achtung! Cthulhu - Zero Point campaign.