You are wrong. What these young people find inside the derelict building is beyond their and your wildest expectations. It is unlike anything you've seen in the movies before. Once the horror starts, it doesn't relent. The terror and panic is brutal. The 'playground' is inescapable. The fear and terror eats away at them like strong acid. Most importantly the twist at the end is so unexpected and shocking it might just give you a heart attack. Do not read this story late at night or if you're alone at home. This is your only warning.