Saffire, Blue. Blackhart brothers

"Quinn Blackheart is a private investigator, former cop, and no-nonsense, take-charge kind of guy who adores his sprawling Irish family. He likes to check all the boxes, and his niece's gorgeous driving instructor just earned a place at the top of his to-do list. Alicia Rhodes has had a tough, chaotic year, and she's ready to put the past behind her and find happiness in the present. When handsome Quinn Blackhart shows up at a driving lesson, she can see he's the very best kind of trouble--but is she game? Now isn't a great time to get involved with a man--even if he's the most romantic, supportive, understanding, magnificent man she's ever met. So between unfinished business of Alicia's, and a dangerous case threatening the Blackhart family, Quinn is determined to both woo Alicia and keep her safe--which is going to make for one wild, sexy ride" --