Lieutenant Obergatz had fled in terror from the seeking vengeance of Tarzan of the Apes. And with him, by force, he had taken Tarzan's beloved mate, Jane. Now the ape-man was following the faint spoor of their flight, into a region no man had ever penetrated. The trail led across seemingly impassable marshes into Pal-ul-don -- a savage land where primitive Waz-don and Ho-don fought fiercely, wielding knives with their long, prehensile tails -- and where mighty triceratops still survived from the dim dawn of time . . . And far behind, relentlessly pursuing, came Korak the Killer.

Product Description: The forests of the southern Rocky Mountains of Colorado and Wyoming are part of this region's natural heritage, providing priceless ecological value, essential natural resources, numerous opportunities for outdoor recreation, refuge for native biological diversity, and solitude to Americans who want to escape our crowded cities...read more (view table of contents, read Amazon.com's description)