He saved her life when she was a girl. Now, she is a woman determined to heal his heart...

Spirited debutante Lady Olivia MacLeod, cherished daughter of the Duke and Duchess of Strathaven, has two interests: solving mysteries and winning the love of her secret girlhood crush, the infamous Duke of Hadleigh. When she joins Lady Charlotte Fayne’s charity for genteel young ladies and discovers that it is a front for an investigative agency, she is thrilled and dedicates herself to solving a deadly case. Little does she realize that the path to danger will also lead to her heart’s deepest desire.

Notorious widower Ben Wodehouse, the Duke of Hadleigh, has only one goal in mind: redemption. After his tortured past, he seeks salvation behind a mask, channeling his dark demons toward helping those in need. The last thing he wants or deserves is innocence. Yet temptation taunts him by delivering pretty young Olivia into his arms: she is everything he cannot have and everything he needs.

Will Olivia and Ben succeed in defeating a menacing foe? Will succumbing to their dark and forbidden desires lead to their happily ever after?