Luna kneels in the ash-filled room where her original memories lie buried, holding a bone fragment etched with her true name. The impostor's voice has become her own, and a door appears that only opens when she stops believing she was ever real. She must choose: accept that she was never meant to exist, or rewrite the spiral from its origin. Descending deeper into the lighthouse foundation, she finds a chamber of stacked femurs and skulls—the bones of every child Elias Vane invented. A half-burned letter reveals that the first child was a girl named Lira, whose true name Luna now carries. The impostor steps through the door, no longer a mirror but a separate being, and offers a final truth: Luna can become Lira and leave the spiral forever, but the impostor will remain trapped. Luna traces the scar on her hand and speaks the name aloud, triggering a collapse that buries the chamber. She emerges alone in a dark corridor, the scar gone, the impostor silent, and a door ahead marked with the child's name—Lira—inviting her to a life that was never hers.