The second in the incredible new Rules of Scoundrels series from New York Times bestselling author Sarah MacLean. Lady Philippa Marbury is odd. The bespectacled, brilliant fourth daughter of the Marquess of Needham and Dolby cares more for books than balls, flora than fashion and science than the season. Nearly engaged to Lord Castleton, Pippa wants to explore the scandalous parts of London she's never seen before marriage. And she knows just who to ask: the tall, charming, quick-witted bookkeeper of The Fallen Angel, London's most notorious and coveted gaming hell, known only as Cross. Like any good scientist, Pippa's done her research and Cross' reputation makes him perfect for her scheme. She wants science without emotion—the experience of ruination without the repercussions of ruination. And who better to provide her with the experience than this legendary man? But when this odd, unexpected female propositions Cross, it's more than tempting... and it will take everything he has to resist following his instincts—and giving the lady precisely what she wants.