Delia Spark is caught in a maelstrom. Her former life as a London theatre director is on the brink of implosion amid a scandalous divorce, a tarnished reputation, and, for reasons she cannot fathom, things keep spontaneously combusting around her. Her sixties were supposed to be peaceful, but now even her grown daughter won't return her calls. Escape is the only option.

1692. On the outskirts of Salem, a bookstore stands covered in overgrown vines. Inside, a young woman hides a linen-wrapped journal under a loose floorboard and runs away, panicked by the sound of hounds barking in the distance. The bookstore vanishes into thin air…

Isabel Gibson has all but perfected the art of forgetting. She’s a New Yorker now, with nothing left to tie her to Brinkley’s Island, Maine. Her parents are gone, the family bookstore is all but bankrupt, and her sister, Sophie, will probably never speak to her again. But when a mysterious letter arrives in her mailbox, Isabel feels herself drawn to the past. After years of fighting for her independence, she dreads the thought of going back to the island.

For Claire Emerson, there is nothing ordinary about turning sixty. First, there are the crows. Then, a pendant that unlocks a gate to a house in the woods—which comes with a snarky gargoyle, an entirely too-sexy wolf shifter claiming to be Claire's protector, and a legacy that turns her reality upside down. Because divorced, menopausal grandmothers with creaky hips and hot flashes? They don't just randomly discover they're next in a long line of powerful women protecting the world from the dark magick of Mages.

Hecate Goodwin, Kate to her friends, has curated the perfect life as a hedge witch, living in a secluded cottage with only a black cat for company. She spends her days foraging herbs from the Ipswich forest, gardening, and creating tinctures to sell at the apothecary she owns. Most evenings pass without her speaking to another human being, an arrangement she quite prefers. Kate’s solitude is thrown into disarray when her older sister, Miranda, reaches out and asks her to host their coven’s annual Halloween gathering.