Killing November
(Book)

"November is trapped. At the mysterious Academy Absconditi, a school that's completely off the grid, there's no electricity, no internet, and a brutal eye-for-an-eye punishment system. Classes include everything from knife-throwing and poisons to the art of deception. And the other students? All children of the world's most elite strategists, in training to become assassins, spies, and master manipulators. November Adley doesn't know why she's been sent to this place, or the secrets that make up its legacy, but she'll quickly discover that allies are few in a school where competition is everything. When another student is murdered, all eyes turn to November, who must figure out exactly how she fits in before she is found guilty of the crime...or becomes the killer's next victim." --,(Source of summary not specified)