Sixteen-year-old Davida Archer's life would be fine if she could just be free of Boston Falls. Ostracized by locals for being the daughter of a witch, she's welcomed by the one group of people she knows she doesn't belong with, her mother's coven. Davie's autistic mind operates in the rational, so she calls out witchcraft for what it is: a hoax to stroke the egos of narcissists. How else could she have gone her whole life without witnessing anything remotely magical? When pressured to take over as the coven's next High Priestess to allow her mother's retirement, Davie lashes out, bringing about results she never thought possible, changing the world around her.

When Boston Falls is locked in a sleeping spell under an invisible dome, Davie is forced to consider there's more to magic than she believed.

Luckily, she's not alone in this reckoning. Unluckily, she's joined by Gretchen, the Artsy Girl; Jordan, the Basketball Star; and Bryony, the Mean Girl. While the other three quickly overcome their differences to put a plan into action, Davie struggles to find her place in this new reality. Having to trust her childhood bully and two strangers with her life pushes her farther than her understanding of the world can handle.

Guided by Edward, a ghost with his own mysterious motivations, this ragtag group of unlikely allies must learn to use magic before the vengeful spirit of a murdered witch and her zombie army destroy the ensorcelled town.

The rules and boundaries the teens built their identities on crumble without gatekeepers to tell them who to be.

When everything they know to be true about themselves and their standing in high school hierarchy is shaken like the snow globe they're trapped inside, who will be the real witches when the flakes finally settle?