[last lines]
Ethan Chandler: [Ethan Chandler reads his letter to Vanessa Ives while on a ship back to America, narrating] Dear Vanessa... your many kindnesses I will always carry with me. Such generosity... has not been a part of my life, and I thank you for your affection and understanding. In my most frightened and lonely moments, you were there. And such light you brought to me. But I am made for the dark. As we both know. I am fit for only one place and should have been there long ago. Deep in the cold clay on a forgotten hill. Your road may be difficult. But mine is doomed. So we walk alone. Written with love... Ethan.
Vanessa Ives: [after Vanessa turns off all the lights to the house] So we walk alone.