Nests of pterodactyls, hordes of iguanodons, swarms of plesiosaurs still roaming the earth in the twentieth century? Professor Challenger says yes and to prove it he leads an expedition into the deepest jungles of South America. Together, the men--a young journalist, an adventurer, and an aristocrat--along with their bearers and guides,search for the rumored country and encounter savagery,hardship, and betrayal on the way. But things only get worse as they get closer to the hidden world they seek. Trapped on an isolated plateau, menaced by hungry carnosaurs, it begins to look as though the expedition may never return from...