The last graduatelesson two of the Scholomance

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 realizes that sometimes winning the game means throwing out all the rules...