Some secrets refuse to stay buried. Some powers were never meant to be awakened.
When historian Isla Douglas discovers an ancient grimoire hidden deep within Edinburgh University, she believes she's uncovered a historical treasure. But when the book responds to her touch, her world shatters-and her bloodline's forgotten legacy is revealed. Isla isn't just reading history. She
is
history.
Jessica Campbell and David Hunter, witches working for a covert agency, are called in to investigate-but what starts as a routine case spirals into a race against time. Ancient witches long thought lost are stirring beneath the streets of Edinburgh, shadow entities stalk the city, and at the center of it all lies Isla-key to a power that could reshape reality itself.
Across cathedrals haunted by ancestral ghosts and beneath a sky turned violet with rising magick, Isla, Jessica, and David must confront their deepest fears-and each other. Because standing against them is Cardinal Matthews, a man whose twisted vision of salvation could plunge the world into darkness.
Faith or freedom. Sacrifice or survival. To save Edinburgh-and the world-they must unlock the greatest secret of all.