Neuroscientist Emma Sinclair believes in logic, facts, and the undeniable boundaries of reality-until a nameless patient shatters everything she knows. Found wandering the Utah desert with no past and only fragments of impossible memories, he whispers the same haunting phrase: "I remember what didn't happen."

His drawings reveal places Emma knows intimately but has never spoken of-memories tied to the disappearance of her twin sister, Sarah, twenty years ago. As Emma is drawn deeper into his unraveling mind, she begins experiencing strange phenomena: objects vanishing, whispers in empty rooms, visions of a lighthouse that shouldn't exist. And when the patient describes Sarah's last moments with chilling precision, Emma is forced to confront the unthinkable.

• A psychological thriller meets speculative mystery - A gripping blend of science, memory, and the supernatural.
• Reality bends at the edges - What if the past you remember isn't the only one that exists?
• A race against time - As the solstice approaches, Emma must follow the echoes of a world just beyond reach... before it's too late.

For fans of Blake Crouch, Stuart Turton, and those who love mind-bending thrillers with a touch of the extraordinary. Dare to remember what was never supposed to be.