When a little girl ventures out into a spring rain with her dog, singing a simple, plain, pitter-patter rain song, her neighbors soon join her for some muddy-day fun.

When Willa's upside-down magic rains, it pours. Clouds form under ceilings. Classrooms get flooded. Umbrellas must always be nearby, just in case Willa has an outburst. Willa hates being the source of such sogginess. Even worse, the more she rains, the badder she feels...and the badder she feels, the more she rains. All the storminess is threatening to drown her good grades and flood all her friendships. Is there any way to use magic to make the clouds...

Elliott has just moved into a new house. He spends his days with his fictional friends, immersed in a book. When an inviting Sunday rain gathers the local kids to play in the puddles, Elliott longs to join in, but he's too shy to go outside. Soon, Elliott discovers that new friendships are like a new book: you just have to plunge into the adventure.