Series numeration from NoveList.

"One bitterly cold night at her family's ancestral home in Zinnia, Sarah Booth hears what sounds like a kitten as she passes the front door. She opens the door to find a newborn baby in a basket on her front porch - with bloody footsteps leading up to the door and back down the driveway. As soon as she steps outside, a loud engine guns and a dark colored vehicle takes off. It's too far away for Sarah Booth to get a good look, and besides, the baby is now her first priority. After rushing the baby to the hospital and calling the police, Sarah Booth and Tinkie Richmond, her partner at the Delaney Detective Agency, know they need to do everything they can to find the baby's mother...even if they are starting to fall in love with the baby themselves. But as she tracks the baby's mother, Sarah Booth soon begins to suspect the woman might be in danger; in fact, she might be running for her own life. And following in the woman's footsteps, Sarah Booth might be next"-- Provided by publisher.