As far as London's high society knows, Lady Isabel Morrow is above reproach. But the truth is rarely so simple. Though the young widow's passionate fling with dashing Bow Street Runner Callum Jenks ended amicably months ago, she now needs his expertise. It seems Isabel's late husband, a respected art dealer, was peddling forgeries. If those misdeeds are revealed, the marriage prospects of his younger cousin--now Isabel's ward--will be ruined.