Fawn thinks she is the absolute best prankster in all of Pixie Hollow. She loves setting up silly surprises and watching her fairy friends laugh. But when her friend Beck decides to play a trick of her own, the fairy dust really starts to fly. In the blink of a dragonfly's eye, the two fairies are caught in an all-out practical joke battle. Prank follows prank as the two friends try to outsmart each other. Then, something strange happens. One night, someone turns all the furniture in Fawn's room completely upside down. It is the biggest prank yet, but Beck swears she had absolutely nothing to do with it. If Beck did not do it, and Fawn did not do it, who is responsible? Now, the two rivals must team up to solve a tricky mystery. They need to search the Home Tree and find out if a secret prankster is hiding among them.