Knightfall - H. J. Harding - Bog

Violet Peters doesn't regret her choice to stay at Hyde. Usually. But it has complications. Especially when it comes to relating to her family. Her worlds are separating and Violet finds it harder and harder to straddle the balance. When her own cousin applies to Hyde, even Violet isn't sure if that will help or harm. She does know that the danger isn't over yet, and someone is using Hyde as their personal chessboard. Violet is determined to do her part to save the school, but even that determination has unexpected consequences. The game is turning deadly, but she can't back down now.