True Bastard by India Kells

Can a bastard and a nun bring down the devil incarnate?

Liam Harker is a cop on a mission. His one goal is to bring his father down and, despite his brothers’ desires, Liam wants him to face justice for all the wrongs he’s committed. Confronted with the insurmountable task of going through his father’s financials, he’s thrown a lifeline when a mutual friend sends novice nun, Sister Catriona Walsh, to help.
Catriona is a wizard with numbers and Liam could definitely use her expertise. There’s only one problem—he’s deeply attracted to the angelic nun. Her beauty, compassion, and intelligence are an almost irresistible combination.
Challenged by his own scars, and his resolve to do the honorable thing, Liam is forced to reconsider everything he thought was right and acknowledge that maybe Catriona is the one that holds the answers.

A bastard in the truest sense of the word, he’s covered in sin, but for his angel of mercy, he’s ready to go through the fires of hell to keep her safe and make her his forever.