The title of this YA novel refers to the ancient school in which it is set - St Aidans The Great School. It's a kind of younger version of Donna Tartt's The Secret History. A girl called Greer MacDonald wins a scholarship to attend this prestigious school, where most of the other students are incredibly wealthy. She is invited away for the weekend to the house of one of the wealthy students, and that's when the manipulation and yes, murder, begins. It's a high quality thriller, with sufficient twists and turns to keep you guessing. Highly recommended.