The Montana Rancher by Paula Altenburg

He’s been keeping secrets. She needs the truth…

Reclusive billionaire and enigmatic ranch owner Ryan O’Connell spares no expense when it comes to the Endeavour Ranch and its charitable organizations. Next up on his philanthropic agenda is a youth group home for troubled teenage boys. When he hires a social worker to work with the counselors and teen clients, he thinks he can take a step back. But her beauty and determination are tough to ignore and even tougher to resist.
Heiress Elizabeth Benson became a social worker after her older sister was murdered, destroying her once-close family. She’s fiercely protective of the boys on the Endeavour Ranch and is determined to learn more about her mysterious boss who is so much more than the quiet cowboy he pretends to be. Too bad their chemistry complicates everything.

Can Ryan trust Elizabeth with his darkest secrets? Or does he risk losing even more than his heart?