What's a kid entrepreneur to do when he loses his math homework? Invent the Everything Locator, of course! Billy's next invention is a device that will find any lost item and return it to you. But the Everything Locator has one teeny, tiny problem--it returns every item that Billy has ever lost, all at once! Will Billy find a way to make everything right with the Everything Locator? Will he even be able to dig his way out of this pile of junk?