Proud Parents — Kristopher Rufty

He's still their son. No matter what. It was a risky experiment, but Greg and Sheila wanted a baby. Unable to conceive, they signed up for the project. Their prayers were answered when they were selected for the experiment. And it worked. All of the chosen families conceived. Then came the mutations -- followed by the men with guns, killing everyone, and the fire that burned the place to ashes, erasing its failure from existence. But it didn't eliminate them all. Six years later, Greg and Sheila are still on the run with their son, Gabe, moving from small town to small town, just wanting a life to call their own. Gabe's getting worse, his appetite is voracious, and his temper is untamable. And now Gabe is changing...again.