Lock up your jewels! Bestselling author Jude Watson is back with her gang of kid criminal masterminds. Never do a favor for a friend. Twelve-year-old March McQuin forgot rule number one for cat burglars, which is how he and his twin sister, Jules, found themselves dangling upside down twenty feet above a stone floor at three in the morning. Their target was a set of stunning diamonds and it should have been an easy job, in and out. Except another...