How Old Is Mr. Tortoise?

With a story from I Don't Want to Be a Frog author Dev Petty and hilarious graphic novel-style illustrations from Ruth Chan, the picture book How Old Is Mr. Tortoise? will have readers guessing the answer from beginning to end.

It's Mr. Tortoise's birthday, and he can't wait to eat cake with his friends. But there's a hitch! Mr. Tortoise can't remember how old he is, so his friends don't know how many candles to put on the cake. And they won't stop (or slice) until they figure out the myste...