A stormy summer in a small Irish town gets weird for Olive when things begin disappearing, from trivial stuff like hair clips up to scary things like a heart, a memory, and her best friend, Rose. Then, diary pages from someone called Laurel appear all over town, Olive meets three strangers squatting in an abandoned housing development, and a spellbook falls into the lives of Olive and the five teens promising charms to return lost things--but at a high price.