The St. Ciaran's Chronicles - The Lonsdale Files, #1

Eighteen year-old Aidan Lonsdale thought he was in store for the best years of his life when he arrived at St. Ciaran's College. But on his first night as a freshman, his room is ransacked and his best friend vanishes. A fish out of water, with no clues or friends, Aidan dives deep to uncover just what happened that night. His search will soon require him to uncover secrets lying beneath the college's pristine façade.
Shocking, dark secrets that lead all the way to the highest levels of the St. Ciaran's administration. If Aidan fails to uncover the truth, he stands to lose far more than the chance to ever find out what happened to his friend. Perfect for fans of Young Adult mysteries/thrillers like Karen M. McManus's Nothing More To Tell. NOTE: Contains strong language, brief violence and sexuality, alcohol and drug use, and references to suicide.