Trapped in the Carnival

Kate and Sammie are best friends who are planning to visit an isolated carnival at the edge of town. Because of the isolation, their was none there but some odd workers who seem to be everywhere at once. Other then that, they make the decision to spilt up and enjoy some rides on their own. Once it was dark and only a few kids were there that were their age, expect for a boy who seemed to be at least 15. They made a plan to met at the Ferris wheel at 11:00 pm but on their way, the park lights quickly shut down with only a girl screeching for a few seconds.
Explore Kate's point of view of escaping the evil carnival that seems to get more crowded by the minute. Walls apparently appear, rides come out of no where and the park just keeps expanding. But the more Kate explores, the more it seems that there is no way out.
Who ever is keeping them there obviously does not want them to leave.