Description In this delightful story about Posy the Plateosaurus, readers learn about what happens when someone is selfish. This relatable and helpful lesson is presented through dinosaur characters that your readers will absolutely adore. The achievable text introduces readers to Posy. Posy is a selfish dinosaur who won't let any other dinosaur cross a bridge. However, once another dinosaur moves into the desert and claims the bridge as his own, Posy must learn to share. This adorable adventure includes charming illustrations that help readers navigate this prehistoric journey into the world of independent reading.