One rebellious impulse was all it required for the bankrupt Miss Frances Fortesque to make a bet with her tedious cousin; she would marry the richest and most powerful man in London or become her maid. The stakes are high, and the odds are not in her favor. But a lucky circumstance will bring Frances inside her target's home. And the seduction game is on.

Ralph Wynter, Duke of Sinclair never wanted just one woman at his side and in his bed. However, now he has one single desire. The lady guest of his sister is forbidden fruit. Too young and too noble to indulge his depraved fantasies. Ralph is determined to keep his distance from Frances, to protect both their honors. Yet, the minx doesn't stop provoking him. But as her power over him grows, a shocking plot against him is revealed, and the tables are turning. With their secrets starting to spill, Ralph's enemies may tear them apart before Frances' wicked bet is won. She had a plan to win his hand but he won her heart instead…