Once upon a sunny day, the sky clouded over and the rain came down. The chicken squawked, the baby cried, the traffic snarled, the groceries fell, the people bickered, and still, the rain came down.In pictures full of wit and good-natured humor, Caldecott Honor artist, David Shannon, captures the chaos that follows an unexpected downpour. Rain or shine, here is an engaging story that will brighten the day of all readers.