Set back in April 1941, Nazi Germany is at War and Yugoslavia has just surrendered and it seems the Germain Army are unstoppable. Captain Klaus Woermann has got a job, set up a command and watch post at the Dinu Pass in Romania in a small unoccupied Castle simply known to the local villagers as "The Keep", easy enough job right? Until the first night, when a soldier accidently releases a unknown force upon the Keep, each night another Soldier is found dead in with thier throats torn and no explanation to how it happened! The SS are sent in, and fail, their only hope is a cripplied Jew and his Daughter and the Red Haired man on his way from Portugal. Will the Jewish man help his enemey to defeat this force, or will he join forces with it, and who is the Red Haired man? Read and find out, but beware reader, your skin will crawl!
Another note, this is my favorite book of all time and was a badly made film by Michael Mann, this is better than the film and the book was at one point very hard to come by, so get it while you can, highly reccommended.