'And so you must find the Mallory Heart and bring it home at once. No matter what it takes.' After this decree from his grandmother, Richard, Viscount Mallory, goes in search of the long-lost family heirloom. Imagine his surprise when he spots the exquisite heart-shaped ruby brooch on the bosom of the equally exquisite Lady Isabel Weymouth! Could this popular young socialite actually be a jewel thief? Richard is determined that the brooch be returned to his family. So when an opportunity presents itself, he pilfers the jewel from the lady's bedroom, but is stunned when she steals it back the very next day! Clearly the enchanting Isabel is a more formidable opponent than he imagined, and the former soldier finds himself battling wits and wills with the captivating temptress. Passion ignites between them as the competition heats up, and suddenly there is more than a ruby brooch at stake in this game of hearts.