The Mystery of the Broken Duke by Leah Conolly

His second chance at love, her only chance in happiness…

Charlotte Willmington, may be the daughter of a Baron, but having spent the past years filling the void her mother’s passing left back home, she had no time to secure a good match. Now, with her sisters safely married, she deems that her only option is a position as a governess.
Nathaniel Burke has many responsibilities as the Duke of Wimsley. But he has neglected the most important one: in his attempt to overcome the grief of his wife’s death, he has become a stranger to his own daughter, Eva.

Hiring Charlotte as Eva’s governess is exactly what Nathaniel needed. And not just because she helps mend what was broken between them…
As his heart starts to heal and the possibility of happiness grows stronger, warnings of someone close to him wishing him harm will have him fearing that he will once again lose everything.

Now he must protect his family, and that includes Charlotte, because losing her will be the fatal blow to his bruised soul…