Katie doesn't really believe in the legend of the London Stone, but who hasn't wished they could turn back time--especially to bring back someone they love? Ever since her parents were killed and she had to leave Boston to live with her grandmother in London, Katie has wished for a do-over. When this very wish and the powers of the London Stone collide, Katie is transported back in time to 1888 London. Jack the Ripper has just begun his killing spree. The American teen actually knows a fair amount about Jack the Ripper-- the names of his victims, even where and when they were killed. It's not what she wished for, but Katie knows why she's here. The Ripper could be anyone. Who can Katie trust? The outspoken American isn't like other young women in Victorian London. She must blend if she's to learn anything to help the Ripper's victims. Katie's bold ways alternately frustrate and intrigue Toby. Can Katie trust Toby to help her stalk the Ripper?