Lucinda "Luce" Price is sent to "Sword and Cross", a reform/college prep school for young adults, after she is blamed for the death of Trevor, a boy who Luce once had a crush on. After they kissed, Trevor was killed in a fire shortly after Luce saw the "shadows"; paranormal, ink-like smudges that Luce has been seeing since childhood.

Upon arriving at her new school, Luce meets various students, including Cameron "Cam", who has taken an interest in her; Arriane Alter, who takes Luce under her wing; Molly Zane, who harasses Luce; Pennyweather "Penn", whom Luce befriends; and Daniel. She also meets Miss Sophia, a religious scholar teacher. Read more on Wikipedia.