The Harper Files: The Midnight Séance

Five months after their battle with the Black Veil, the Harper family is called to Massachusetts in the dead of winter, where a group of boarding school students have unleashed something terrifying. What began as an innocent game with a Ouija board has spiraled into a nightmare-possessions, violent apparitions, and voices that refuse to be silenced.

At the heart of it all is Bea Collins, a grieving teenager whose attempt to contact her late mother opens a door that should have remained shut. The school's headmistress denies the danger until it is too late, and the Harpers must uncover the truth: the school was built on the ruins of a Puritan church, where accused witches left behind a curse that now speaks through the board.

As Maggie's postpartum clairvoyance grows unstable, Clara is forced to confront her deepest fears when the entity begins calling her by name. Isla discovers she can sense the spirits more strongly than ever, while Samuel and Father Bell struggle to contain an evil that doesn't speak with one voice, but many.

With students falling under possession one by one, the Harpers face their most dangerous case yet. The board has only one message for them, scratched into the wood by an unseen hand:

"MINE. ALL MINE."