Where Is My Shoe?

Oh no! Caterpillar has lost one of his many shoes, and he can’t walk properly without it! He asks his friends Frog, Grasshopper, and Crab for help, but none of their shoes fit right. Frog’s shoe is for swimming, Grasshopper’s is too big, and Crab’s is way too sharp! Exhausted from searching, Caterpillar decides to take a nap. But something strange starts happening to his body… What could it be?