From publisher blurb: The Secret War had Begun! Achtung! Cthulhu is the ENNIE award-winning roleplaying game - Cthulhu as you've never experienced it before in a terrifying World War Two setting now fully updated for Call of Cthulhu seventh edition! This is the Keeper's Guide with everything GMs and Keepers need for late 30s and 40s wartime adventure! Discover the secret history of World War Two: stories of amazing heroism, in which stalwart men and women struggle to overthrow a nightmare alliance of steel and the occult; of frightening inhuman conspiracies from the depths of time; of the unbelievable war machines which are the product of Nazi engineering genius and how close we all are to a slithering end! The Secret War has begun! The Keeper's Guide to the Secret War is a full-blown tome of dark knowledge, including: Allied and Nazi forces & intelligence agencies New rules and strategies for World War Two combat & survival Key characters & vile creatures New tomes, secret weapons, artefacts & equipment Occult organisations and Mythos-based missions In fact there's a whole shoggoth's worth of Cthulhu villainy, enough for any Keeper to have his investigators dead, insane or running for their lives in no time! The Keeper's Guide to the Secret War is the essential Achtung! Cthulhu wartime reference for any Keeper or fan of the Cthulhu Mythos.