Amazon.com (ISBN 0446520985, Hardcover)

Remember Sir Arthur Conan Doyle's The Lost World, in which an expedition led by Professor George Edward Challenger discovered an Amazonian plateau where dinosaurs still roamed? In Dinosaur Summer, Greg Bear assumes that Challenger's expedition really took place, and that for nearly 50 years dinosaurs have been relatively commonplace in zoos and circuses throughout the world. But the beasts are not easily kept in captivity, and slowly but surely their numbers are dwindling. Now there is only one dinosaur circus left, and it's shutting down. The dinosaur trainer wants to return his animals to the wild, so an expedition is organized to return the dinos to their nearly inaccessible plateau. Accompanying the group (which includes special-effects master Ray Harryhausen) is 15-year-old Peter Belzoni, the son of the National Geographic photographer covering the story. The boy is about to have the adventure of a lifetime.