424The Confessions of Cassidy Cain (Grandmaster of Theft 1) Part crime solver, part crime causer, Cassidy Cain is an heiress who practices her own brand of noblesse oblige as The Grandmaster of Theft, a lady thief who uses her privilege & wits for the sake of those without her advantages. Her escapades typically end with her satisfied. The Adora's Tear Job, however, was not one of those cases.