Category: 1949
Up From Earth’s Center
A shipwrecked lunatic, a mysterious cavern, and a plump little man with a fear of fire lead Doc on his strangest and most legendary adventure ever — straight to the gates of hell itself!
Return from Cormoral
When an eccentric young millionaire suddenly starts predicting the future with unerring accuracy, Doc has to find out how and why fast — because the next prediction is of his own death!
The Green Master
In a secret fortress high in the Andes, Doc and his crew are enslaved by a race of extrasensory super-blondes who worship a strange green stone with a life of its own!