#1 New York Times best-selling author-illustrator Ryan T. Higgins presents everyone's favorite dinosaur Penelope Rex in her board book debut, perfect for winter time. Penelope Rex wants to play in the snow. Her pet saber tooth cat wants to help her get ready. But saber tooth cats prefer to play . Join Penelope and Mittens the saber tooth cat as they prepare to play in the snow in this cozy and funny wintertime entry in the Penelope Rex canon. Read all of the Penelope Rex books! We Don't Eat Our Classmates We Will Rock Our Classmates We Don't Lose Our Class Goldfish Penelope Rex and the Problem with Pets.