Academy Girls by Nora Carroll
My rating: 4 of 5 stars
Summary: Jane Milton—divorced and deeply in debt—has reluctantly returned to the remote boarding school of her youth, this time to teach, but the long-buried secrets of her past will not be easy to escape.
During their senior year, Jane and her friends Kat and Lissa obsessed over their English teacher, Miss Pymstead, convinced of her involvement in an unsolved murder. As the obsession escalated, it took a tragic turn. The only record of their misdeeds was a secret manuscript that disappeared without a trace—until the story resurfaces in an assignment turned in by Jane’s least favorite student.
Jane scrambles to unravel the mysteries, but can she keep her own secrets buried as she unearths even darker, long-hidden truths?