Get ready for a prehistoric dino adventure! Join three of the smallest dinos as they board a train in search of the BIGGEST dino of them all. They'll journey over a river, through a tunnel, and way up in the sky, asking all their friends, "Have you heard about the biggest dino? Where can it be found?" This fun, interactive book features pull tabs, flaps, glow-in-the-dark ink, and a big pop-up surprise ending. Tim Beaumont's colorful and eye-popping art combined with his adorable and catchy verse will be irresistible to parents and children alike.