In the lands of Bethel, where the Prophet's word is law, Immanuelle Moore's very existence is blasphemy.

The daughter of a union with an outsider that cast her once-proud family into disgrace, Immanuelle does her best to worship the Father, follow Holy Protocol and lead a life of submission, devotion and absolute conformity, like all the women in the settlement.

But a chance mishap lures her into the forbidden Darkwood that surrounds Bethel - a place where the first prophet once pursued and killed four powerful witches. Their spirits are still walking there, and they bestow a gift on Immanuelle: the diary of her dead mother, who Immanuelle is shocked to learn once sought sanctuary in the wood.

Fascinated by secrets in the diary, Immanuelle finds herself struggling to understand how her mother could have consorted with the witches. But when she begins to learn grim truths about the Church and its history, she realises the true threat to Bethel is its own darkness. And if Bethel is to change, it must begin with her . . .