Little Hippo loves to pretend, and today he is playing a doctor. He tries to examine Big Hippo, Very Tall Giraffe, Giant Crocodile, Elephant, and other patients. But not everyone plays the way Doctor Hippo expected. Especially not Lion. Lion does not want to play Doctor Hippo's game. When he lets out a huge roar, the little doctor races home to find that Mama Hippo's medicine is the best of all. Jonathan London's reassuring story is perfectly matched by Gilles Eduar's warm and whimsical illustrations.

Jonathan London is the author of more than 80 books for children, including the Froggy books. He lives in Graton, California.

Gilles Eduar is the author and illustrator of Gigi and Zachary Go to Work, Dream Journey, and Jooka Saves the Day. He has illustrated more than 20 books, 10 of which were first published in France. He lives in Brazil.