Prisoner of cabin 13 - John Vornholt

Sabrina's excited to be a counsellor at Camp Bearclaw - until she gets her cabin assignment: Cabin 13, the troublemakers' cabin. She tries to tame the kids without using magic, but they're really out of control. When they have a pillow fight that covers the cabin in feathers and stuffing, Sabrina finally loses her temper and casts a good-behaviour spell.
Now her campers are amazing everyone with their obedience. But Sabrina knows they can't win the big Tug of War competition if they're acting like well-behaved robots. And she's getting a little bored with her perfect little campers. Should she remove the spell, or is she asking for more trouble?