Unfinished Desires — Gail Godwin

IT IS THE FALL OF 1951 AT MOUNT ST. GABRIEL'S, an all-girls school tucked away in the mountains of North Carolina. Tildy Stratton, the undisputed queen bee of her class, befriends Chloe Starnes, a new student recently orphaned by the untimely and mysterious death of her mother. Their friendship fills a void for both girls but also sets in motion a chain of events that will profoundly affect the course of many lives, including those of the girls' young teacher and of the school's matriarch, Mother Suzanne Ravenel.

Fifty years on, the headmistress relives one pivotal night, trying to reconcile past and present, reaching back even further to her own senior year at the school, where the roots of a tragedy are buried.