When the Spiral governing psychic reality begins unraveling backward through time, the Circle uncovers a paradox capable of erasing history itself. Beneath Oslo, an ancient vault has triggered collapsing timelines, fractured memories, and events that are beginning to un-happen. As reality rewrites itself, the team must uncover the truth behind Ezra’s fate and Kieran Miller’s connection to the Spiral before the origin of psychic power is destroyed. Some sacrifices echo across time forever.