Chang Chang knew she was dreaming. The scene was familiar. Barefoot, she walked on green grass, up the side of a wide, rocky hill. Shafts of sunlight shone on her white dress. There were wildflowers blooming, gold and purple, all around her feet. She stopped at the crest of the hill. A stone tower rose up before her. A single opening had been cut into the curve facing her, a dark and unblinking eye. The western side had caved in, leaving a gaping hole into which birds flew and nested. Their cries were the only sounds on the hilltop. But Chang Chang felt she was not alone.