Haven House. The Automatons, #1

In a world where anything is possible, sometimes the worst comes at the hands that should care for you the best. When Amaryllis Coultihan fled Haven House after Travis Haven threatens to make her one of his many brides, it straight into the arms of Gloriana, the woman who had married her brother, Andrew. Although her brother and sister-in-law insist she's safe, Ammy would rather die than allow herself to be swallowed by the evil of Haven House. Damien Whitmore is a ranger, working undercover to bring down the religious cults, like Haven House and save the women trapped in them from a life of degradation.
He's there when Amaryllis Coultihan escapes. While she may no longer be in Haven House, the malevolence that lurks within follows them, threatening her and the 5 children she fosters-also escapees of the Haven cult. They might run, he might even shelter them, but while Amaryllis and Damien's feelings grow and blossom, so does the danger chasing them.