When they wake up for the day, Joann and Jane each find a very messy bedroom. What happened? Who made the mess? The sisters approach the situation as detectives would; they look for clues and interview family members. Young listeners may guess the culprit; regardless of whether they do or not, they will have fun along the way. There is a gentle message in the book about cleaning up and taking responsibility that I am certain parents will appreciate. A cute read overall.