"Certain to become a new classic of adventure beyond time . . . An unofficial sequel to Sir Arthur Conan Doyle's The Lost World." —Prehistoric Pulp

Hugo and Nebula Award–Winning Author

New York Times–Bestselling Author

Fifty years after Professor Challenger's discovery of the Lost World, America's last dinosaur circus has gone bankrupt, leaving a dozen avisaurs, centrosaurs, ankylosaurs, and one large raptor abandoned. Now a daring expedition plans to do the impossible: return the Jurassic giants to the wild. Two filmmakers, a circus trainer, a journalist, and a young Peter Belzoni must find a way to take the dinosaurs across oceans, continents, rivers, jungles, up a mountain that has been isolated for seventy thousand years . . . Then, if they make it, all they will do is face the prehistoric wonders, dangers, and terrors of the Lost World.