Small Panda has lost his bottom. It was there when he went to sleep but now it has disappeared. He searches high and low, and finds stripy bums, pink butts, and feathery derrieres. "Are you my bottom?" he asks, but none of these bottoms are his. Finally, he spots a furry bum which just has to be his, but the answer is surprising! A cheeky story for anyone who has ever left something behind.