The Derelict of Skull Shoal
In the middle of the Atlantic Ocean a dog howls - launching Doc and his crew on a high-seas adventure involving bloodthirsty pirates, man-eating sharks, and an island of zombie-killers!
Terror Wears No Shoes
When one of his trusty crew mysteriously vanishes in the Orient, Doc's investigation leads to a beautiful glamour-puss, a deadly virus, and a diabolic plot to poison America!
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.
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!
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!