PreS-K Rex finds what he thinks is an egg and protects it when he falls off a cliff into the ocean and meets with other calamities. Back at his nest, it breaks when he drops it, and he discovers that his treasure is really a rock. The text is very easy and repetitive: "Now he must/Run./Run!/Run!" In the end, he chases a smaller dinosaur for "Lunch! Lunch! Lunch!" The endpapers show drawings of various dinosaurs, identified by name. The illustrations are done in a vibrantly colored cartoon style in both watercolor and crayon. Perfect for preschool storytimes and multiple readings with dinosaur-obsessed toddlers. Sarah Wilsman, Kent Free Library, Kent, OH