Heads on Sticks

Grace a 13 year old girl finds herself in a competition that she didn't even sign up for. All the students at the school didn't sign up either but some how they were selected to compete. Everyone in the competition goes into the gym and mysteriously all the adults walk out of the building as if they are in some sort of trance. The doors are locked and their is no way to escape. Will they be able to escape the school before its to late?

WARNING DO NOT READ IF YOU DON'T HAVE A STRONG STOMACH! AS YOU PROBABLY FIGURED OUT BY LOOKING AT THE TITLE AND PICTURE THEIR WILL BE HEADS ON STICKS. :-P