Lucy Blackwell is desperate, reckless, and maybe a little bit crazy. That's the only possible explanation for tricking a man she doesn't know into a dance, a kiss, and an engagement-all in the middle of the biggest ball of the year! But Lord William Summersby is the final piece of her grand plan, and she'll do what it takes to make this marriage of convenience work-as long as it's convenient for her. She just never counted on falling in love . . .