"The Dinosaur Explorers, Rain, Sean, Stone, joined out in the field for the first time by Diana, find themselves back in the Jurassic! This is the grand age of dinosaurs, but also the time when the first non-dinosaurs begin to stretch their limbs! What this all means is that the Dinosaur Explorers find themselves in a place and time full of life--though they may soon not be, if the local wildlife have anything to say about it! Looks like they could lose their lives being Lost in the Jurassic!"--Back cover.