Shadow of the Lions
From the publisher: "It has been almost 10 years since Matthias graduated from the elite Blackburne School, where his roommate and best friend, Fritz, fled into the woods, never to be heard from again, in the middle of their senior year. Fritz vanished just after an argument over Matthias' breaking of the school's honor code, and Matthias has long been haunted by the idea that his betrayal led to his friend's disappearance. After hitting the fast lane in New York as a successful novelist, he is offered the opportunity to return to Blackburne as an English teacher. He partners with a curmudgeonly local retired cop and tries to solve the case, dealing with his own place in the privileged world of Blackburne." Annie from The Bookshelf Thomasville pairs this with Prep and The Secret History.
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