My Soul to Keep (Dylan Foster Series #3) by Melanie Wells

As nasty as I knew Peter Terry to be, I never expected him to start kidnapping kids. Much less a sweet, funny little boy with nothing to protect him but a few knock-kneed women, two rabbits, and a staple gun…
It’s psychology professor Dylan Foster’s favorite day of the academic year–graduation day. A day of pomp, circumstance, and celebration. And after all the mortar boards are thrown, Dylan and some of her best friends will gather around a strawberry cake to celebrate Christine Zocci’s sixth birthday. But the joyful summer afternoon goes south when a little boy is snatched from a neighborhood park, setting off a chain of events that seem to lead exactly nowhere.
Police are baffled, but Christine’s eerie connection with the kidnapped child sends Dylan on a chilling investigation of her own. Is the pasty, elusive stranger Peter Terry to blame? Exploding light bulbs, the deadly buzz of a Texas rattlesnake, and the vivid, disturbing dreams of a little girl are just pieces in a long trail of tantalizing clues leading Dylan in her dogged search for the truth.