Colton Baby Rescue by Marie Ferrarella

Carson Gage has a crime to solve – the murder of his brother – and his number one suspect is his archenemy, Serena Colton. The Coltons and Gages have feuded for generations and Carson is convinced the cowgirl is hiding his prime suspect on her ranch. But the beauty and her baby stir unwelcome yearnings in his calloused heart. After all, Carson has learned the hard way what vulnerability can cost.

When Serena and her child become targets of a mysterious assailant, Carson's protective urges take over. Can an irresistible attraction prove stronger than old family hatreds and help them capture a criminal?