Thule, the Nazi Atlantis, home of the Aryan super-beings who ruled pre-history. Thule was a mere Nazi pipedream, until a defector from the SS occult sciences division, the Karotechia, corroborates its existence! Now, Delta Green's course is clear: the alien city and its technological and occult secrets must be denied to the enemy at all costs! Denied to the Enemy is the seond novel set in the Delta Green universe.