In 1793, during a forgotten year at Hogwarts, an ancient hidden mechanism known as the Bell Reliquary begins ringing on its own—triggering subtle fractures in time across the castle. Moments repeat, memories shift, and reality itself becomes unreliable. As the disturbances grow, a widely known Ravenclaw student, Elowen Sable, finds herself at the center of the mystery, one of the only people able to sense when time has changed. Alongside a group of unlikely allies—and rivals—she must uncover the truth behind the Bell before it forces Hogwarts into a single, irreversible version of reality.