The Killer on Campus

13 High School students tends to survive in one small classroom, avoiding being killed by the infamous female serial killer, Selena McClusters. They was no adult to guide them, little food to crave, and no phone service to call help.
The killer refuses to leave the district without killing everyone, because she knows the rest are hiding somewhere. They spend 23 whole days in the small classroom, each one of them keeping secrets that might leave them to safety.

Will they escape the campus and avoid the killer, or will they spend the rest of they're lives in the classroom hiding from the killer?

Book was inspired by an episode from Girl From Nowhere.

Warning: Strong language, violence(killing, blood, fighting, etc), scares.