The troop : [a novel of terror]
(Book)

Once every year, Scoutmaster Tim Riggs leads a troop of boys into the Canadian wilderness for a weekend camping trip. The boys are a tight-knit crew. For the most part, they all get along and are happy to be there. But for some reason, he can't shake the feeling that something strange is in the air this year. It comes to them in the night. An unexpected intruder, stumbling upon their campsite like a wild animal. He is shockingly thin, disturbingly pale, and voraciously hungry. Within his body is a bioengineered nightmare, a horror that spreads faster than fear. One by one, the boys will do things no person could ever imagine.--from book jacket.