There are no teachers, no holidays, friendships are purely strategic, and the odds of survival are never equal. Once you're inside, there are only two ways out: you graduate or you die. El, Orion, and the other students are faced with their final year - and the looming spectre of graduation. El is determined that her chosen group will survive, but it is a prospect that is looking harder by the day as the savagery of the school ramps up. Until El realises that sometimes winning the game means throwing out all the rules.