Eacape from Hartwood Hospital

so, this is a horror story that is actually based on a real hospital in Lanarkshire, UK. The only made up things in this story are the characters, and some of the story line. the pic on the cover is an actual picture of Hartwood.

What happens when four teens from America visit Scotland to explore an old, supposedly haunted, abandoned psychiatric hospital? Will they make it out alive, or will they all just become..... Part of the hospital?