When a giant dinosaur egg hatches, Boo becomes its mother and turns to her brother, Sammy, for wisdom on what to do with an "imaginary" friend. Games, he tells her. You play games. So, Boo gathers all the games she can to keep Dinny entertained. Luckily, when she borrows her brother's camera, Dinny doesn't like the taste and spits it out. Next, she needs her magic cape. But, it's in the wash with all the other magic capes. She needs it to teach Dinny to fly. Filled with imagination and the possibility of dinosaurs coming to life, this is a funny and fun read for early readers and independent readers. This is the sequel to Boo's Dinosaur.