Doc Savage Double Novel Volume 87 Devils Black Rock

"Sanctum Books completes its reprinting of all 182 original Doc Savage pulp novels with three hellish thrillers by Lester Dent. First, the Man of Bronze struggles to prevent the Nazis from obtaining 'The Devil's Black Rock,' a mysterious force that could change the course of the war! Then, Doc and his aides team with three ghost hunters to destroy 'The Pure Evil.' Finally, Doc journeys to the gates of Hell and must battle demon-like creatures in order to return 'Up from Earth's Center' in his legendary final pulp odyssey!"