On my eighteenth birthday, my brother brings home a girl who changes everything—my twin sister, Seren, returned from the dead. But as she seamlessly steals my bedroom, my boyfriend, and my family's affection, I realize something is terribly wrong. Seren isn't the lost sister I never knew—she's a threat I never saw coming. Desperate and alone, I begin to uncover the dark secrets buried in my family's past, only to discover that the real danger was always closer than I thought. In a race against time, I must expose the truth before I lose everything—including my life. This gripping tale of betrayal, identity, and survival will keep you guessing until the very last page.