The Last Version Of You

What if the life you remember is only the version that survived? Mara Voss is an emergency architect who trusts structures, models, and the comforting certainty that every failure has a cause. Then an impossible letter appears inside her locked apartment. You were happier before you became yourself. The message leads Mara to ECHO, a secretive technology company that reconstructs human lives from memory, data, and choice. There, behind a wall of glass, she meets a woman with her face, her scar, her childhood memories-and the husband and daughter Mara never had. They call her Seventeen. She claims she is not the life Mara could have lived. She is the life Mara was supposed to live. As reality begins to fracture, memories contradict themselves, the dead start calling, and alternate versions of Mara emerge from lives that should never have existed. At the center of it all is the death of Mara's brother, Elias-and a buried experiment that may have decided which version of her was allowed to become real. To uncover the truth, Mara must confront a question more dangerous than whether her memories are false: If every version of you is conscious, grieving, and desperate to survive... who has the right to choose which one gets to stay?