Sula and Bing are camping in Bing's garden in order to see the stars and the moon. As Flop goes back for Hoppity, night-time noises seep from the dark garden, spooking Bing. Then, a scary shape on the tent terrifies him. They go inside, but the monster has followed them in! Bing and Sula discover that Flop is the monster. So they go back outside, where the billion, zillion stars and a huge moon are waiting for them