The Surrogate — Judith Henry Wall

To a penniless twenty-year-old like Jamie Long, surrogate motherhood seemed both an act of altruism and a financial opportunity. But once pregnant and under contract to Amanda Hartmann, the head of a famous evangelical family, Jamie realizes that she's getting more than she bargained for. Whisked away to the vast, isolated family ranch, she's closely supervised and carefully cut off from the outside world. She learns the family's dark secrets -- and sees the enormity of their ruthlessness. When Jamie hears Amanda's plan to claim the baby as her natural-born child, she begins to suspect that her own life is in danger and resolves to flee.

Alone with a tiny newborn, she calls on the one man in the world she can trust -- her high school crush, Joe Brammer. Their love unites them in a struggle to escape, and soon enough their flight becomes a fight for their lives.