Killing November by Adriana Mather

It’s a school completely off the grid, hidden by dense forest and surrounded by traps. There’s no electricity, no internet, and an eye-for-an-eye punishment system. Classes include everything from Knife-Throwing and Poisons to the Art of Deception and Historical Analysis. And all of the students are children of the world’s most elite strategists—training to become assassins, counselors, spies, and master impersonators. Into this world walks November Adley, who quickly discovers that friends are few in a school where personal revelations are discouraged and competition is everything. When another student is murdered, all eyes turn to November, who must figure out exactly how she fits into the school’s bizarre strategy games before she is found guilty of the crime…or becomes the killer’s next victim.