The Land That Time Forgot

When adventurer Bowen Tyler was taken captive aboard an enemy submarine, he never dreamed that his voyage would end in a land where time itself was prisoner. But in the uncharted seas at the bottom of the world Tyler and the crew of the U-33 discovered the mysterious forgotten continent of Caspak, where the savage denizens of a thousand lost ages roamed vast primeval jungles.

Surrounded by dinosaurs and Bronze Age warriors, saber-toothed tigers and cunning beast-men, Bowen Tyler began to unravel the incredible secret of Caspak -- even as he battled to save the life of the woman he loved . . .