One stormy summer night, Olive and her best friend, Rose, begin to lose things. It starts with simple items like hair clips and jewellery, but soon it's clear that Rose has lost something bigger; something she won't talk about. Then Olive meets three wild, mysterious strangers: Ivy, Hazel and Rowan. Like Rose, they're mourning losses - and holding tight to secrets. When they discover the ancient spellbook, full of hand-inked charms to conjure back lost things, they realise it might be their chance to set everything right. Unless it's leading them towards secrets that were never meant to be found . . .