Rugrats Files - In Search of Reptar (Hardcover, Turtleback School & Library ed.)

After a visit to the dinosaur exhibit at the Museum of Natural History, the Rugrats find themselves back in the land before time. Before they know it, they save a baby stegosaurus trapped in a mud pit and help a Tyrannosaurus rex get his foot unstuck from a crevasse. But now that there's a T-rex on the loose, will the babies get back home before it's too late? Find out in this dinomite prehistoric time-travel adventure -- and learn about dinosaurs along the way!