Paul is a new student at an English boarding school. Think out in the country, old buildings, massive campus, and ivy-covered walls.
Initially the morphed creatures are slow-moving. They remind me of zombies, but they quickly band together, becoming more aggressive and smarter.
Paul and a group of students barricade themselves in the Science Building. It isn't long before the "infected" are breaking down doors and climbing through windows. It's almost like a zombie apocalypse. Cell phones don't work in the country and the power is out. There appears to be no way to get help.
How do Paul and his small group survive? Do they survive? You'll have to read the book and see.