Valerie has brought home a caterpillar. She wants to see it morph into a beautiful butterfly. The caterpillar happily gorges on the leaves fed to it and soon it becomes very fat. Valerie is sure its skin will burst! Then a bizarre thing happens to the greedy caterpillar. Valerie is horrified. She is convinced her caterpillar will not become a butterfly! What does happen? Read to find out!