In the summer of 1998, a seven-year-old girl named Alice Voss went missing from the shore of Lake Vanish, a small, stagnant body of water in northern Minnesota. Her mother, Celia, spent the next two decades searching the woods and the water, refusing to believe her daughter drowned. In 2019, a real estate developer drained the lake to build a luxury subdivision, and at the bottom, in the silt and the weeds, they found something that was not a child's body. It was a porcelain doll, wearing a yellow sundress identical to the one Alice had on the day she disappeared. Its glass eyes were intact, painted with a startlingly lifelike blue. And inside its hollow torso, sealed with wax, was a piece of paper, folded into a tiny square, covered in a child's handwriting. This is the story Luna heard from the developer's foreman, a man named Frank Nyman, who has not slept through the night since he pried the doll from the mud. It is a story about what we leave behind, what we keep, and the shape of a love that refuses to let go.