31 YA Mystery Books that are Absolute Must-Reads

"Keep This to Yourself" ($16) by Tom Ryan features a young gay teen grappling with the loss of his best friend. Mac Bell wants nothing more than to forget about the summer when the Catalog Killer stalked the streets of Camera Cove, but since his friend Connor was the murderer's final victim, he simply can't let it go. Unfortunately, the more he looks into the case, the more apparent it becomes someone out there doesn't want him to know the truth.