We dare you to enter four alluring worlds of dinosaurs and interact with fun and mischievous intent. Readers can use nine press-out dinosaur pieces to help Tyrannosaurus rex chase hadrosaurs among the rocky cliffs of T.rex Valley and find the Maiasaura babies' mummy among the trees of Maiasaura Forest. No dinosaur book would be complete without a head butt competition with the Triceratops beneath the fiery Triceratops Volcano or a chance to meet all the prehistoric residents of Diplodocus Lake. Field guide included to find answers to questions and track down footprints that appear across every scene.