In a mysterious estate run by the Echo Society, Lady Eveline Thorne preserves ghostly fragments of the past using a sentient journal. But when those echoes begin to contradict history, she suspects someone is rewriting time itself. Joined by a blind linguist, a reformed thief, and a priest with dangerous beliefs, Eveline uncovers secrets that threaten the Society's very foundation-and her own identity. As timelines fracture, she must choose between preserving the past or reshaping it.