A year ago Sophie Wickham stumbled into the isolated Lancashire village of Withered Hill, naked, alone and with no memory of who she is. Surrounded by a thick ring of woodland, its inhabitants seem to be of another world, drenched in pagan, folklorish traditions. As Sophie struggles to regain the memories of her life from before, she quickly realises she is a prisoner after multiple failed escape attempts. But is it the locals who keep her trapped, with smiles on their faces, or something else, lurking in the woods?

Clara Woods is a killer—and perfectly fine with it, too. So what if she takes a couple of lives to make her own a little bit better? At the bottom of her garden is a flower bed, long overgrown, where her late husband rests in peace—or so she’s always thought. Then the girls arrive. Lily and Violet are her nieces, recently orphaned after their affluent parents died on an ill-fated anniversary trip. In accordance with their parents’ will, the sisters are to go to their closest relative—who happens to be Clara.

Connie's mother asks her to sell an abandoned house once owned by her grandmother in Salem, Mass. Relunctantly, Connie moves to the small town and inhabits the crumbling, ancient house, trying to restore it to a semblance of order. Curious things start to happen when Connie finds the name "Deliverance Dane" on a yellowed scrap of paper and begins to have visions of a long ago woman condemned for practicing "physick," or herbal healing, on her neighbors in 1690s Salem.

England, 1881. Hereford Cathedral stands sentinel over the city, keeping its secrets, holding long forgotten souls in its stony embrace. Hecate Cavendish speeds through the cobbled streets on her bicycle, skirts hitched daringly high, heading for her new life as Assistant Librarian. But this is no ordinary collection of books. The cathedral houses an ancient chained library, wisdom guarded for centuries, mysteries and stories locked onto its worn, humble shelves. The most prized artifact, however, is the medieval world map which hangs next to Hecate’s desk.

Roos Beckman has a spirit companion only she can see. Ruth—strange, corpse-like, and dead for centuries—is the light of Roos' life. That is, until the wealthy young widow Agnes Knoop visits one of Roos' backroom seances, and the two strike up a connection.