Max is looking for words that rhyme. His dragon is in his wagon - or was, for now its tail has left a trail, which Max follows. He finds an umbrella on the ground-- "Found, ground," he says, while his older brothers mock him for believing in dragons and sitting under an umbrella when it isn't even raining. But Max believes in possibilities--and when he can show his brothers not only a dragon in the stormy clouds but also a dinosaur, they begin to...