Blood Harvest

Some projects take time. Five years ago, Jason Soulis experimented on the town of Black Stone Bay, creating an army of vampires for the sole purpose of seeing which ones would survive and if the creatures could evolve. Five years later, his experiments are bearing dark, bloody fruit. A new breed of monster has come from the ashes of the old, a deadlier predator with a far greater ability to kill and destroy whatever it touches.
Black Stone Bay was wounded before, but the infection left behind has festered and the darkness is spreading faster than anyone has noticed, because this time the evil is better at hiding. Maggie Preston was one of Soulis's victims, a college-aged girl who has become something far darker. She's fed her urges and kept her secrets with the aid of her lover and protector, but that relationship is fraying, and the hungers she's suppressed are growing stronger and the family she has protected in the past has fallen victim to the new evil that Soulis unwittingly unleashed.
Five years have passed, and the town of BlackStone Bay has recovered from the horrors of the past, just in time to get caught in the crossfire of the undead and a new, virulent darkness. Sometimes the devil you know is your only hope of salvation.