The award-winning, unpredictable picture book from this best-selling author/artist team is now available for the first time in paperback. Tadpole loves his rainbow friend, the caterpillar, and she tells him she loves everything about him. "Promise that you will never change," she says. But as the seasons pass and he matures, his legs grow, and then his arms—and what happens to his beautiful rainbow friend? As he sits on his lily pad, digesting a butterfly, Tadpole little realizes that now he will never know! Follow the predictable changes of a tadpole and a caterpillar to their natural conclusion in this award winning picture book.