The chase is on in New York Times bestselling author Cynthia Eden's latest installment in the Killer Instinct series!

Josh Duvane's SEAL training not only hardened his body, but also his mind. Though his latest investigation as part of the FBI's Underwater Search and Evidence Response Team is pushing him to his limits. The Sandy Shore killer taunts local police as Josh recovers his victims off the coast of Florida.

Of all the women taken, only Casey Quinn has survived. As this unrelenting psychopath stalks her every move, Josh is all that stands between her and certain death. Now it's time for him to turn the tables and use every ounce of training to stop the killer from having the last laugh…