Although the cave was low and wide at its mouth, it quickly narrowed into a small tunnel. The horses seemed to understand what was expected of them, and as soon as their riders dismounted the animals scurried to the back of the entrance chamber. Lokesh arrived and began helping Tenzin loosen the saddle girths, speaking in comforting tones to the animals as the Golok and Nyma settled onto rocks at opposite sides of the entrance. Dremu lifted his bottle and gulped noisily, not offering it to anyone else.

"You knew about the army having the eye," Shan said to Dremu and Nyma. "Both of you knew."

"I told you," the Golok said with a wide grin that exposed several of his yellow-brown teeth. The only thing Dremu had told Shan was that he could die a hundred ways.

"Why would the army want an old stone eye?" he asked Nyma.

"Most people in the northern changtang know about the army and the eye."

"I don't. I'm not sure Gendun did."

"It was a long time ago. From an invasion," Nyma offered in a reluctant voice.

"You mean the stone was taken as some kind of trophy fifty years ago," Shan said, referring to the arrival of the People's Liberation Army.

"Not that invasion," Nyma sighed.

Shan sensed movement behind him and saw Lokesh standing at his shoulder now.

"It was when a Chinese army came to drive the Thirteenth out of Tibet in the Year of the Female Water Hare," Nyma explained. She meant the invasion early in the twentieth century. When, Shan recalled, imperial troops had marched into Lhasa, leaving a bloody swath across eastern and northern Tibet in an effort to unseat the Thirteenth Dalai Lama.

"Terrible things happened," the nun continued in a brittle voice. "Chinese soldiers under a General named Feng razed gompas and buried the monks alive, hundreds of monks. Butcher Feng, they called the General. After several years the Tibetan army finally organized a defense and pushed Feng back. There was a terrible fight at the Turquoise Bridge in Lhasa, where the Lujun Combat Division was driven into retreat by Tibetan soldiers. The Lujun were the crack troops of the Chinese army. They were humiliated and wanted to avenge themselves. But the generals ordered the Lujun home because their Empress Dowager had died and more soldiers were needed to keep order in Beijing. The troops marched up the old northern route- the Changlam, it was called- annihilating gompas, killing all monks and nuns they encountered on the way." Nyma hesitated a moment, studying a dark black cloud that had appeared on the horizon. "They were on the Changlam, two hundred miles north of Lhasa when they learned that the home of the senior officer of the troops that defeated the Lujun in Lhasa was a village only twenty miles to the west. They marched on the village and when they found the villagers treating wounded soldiers, they set up cannon and destroyed it. Only one house survived."

The nun stood, staring more intensely at the black cloud, which was rapidly approaching. Suddenly she bent and darted to the edge of the outcropping. The Golok belched toward the nun, then raised his bottle in salute.

After a moment Nyma walked back to the cave. "They haven't moved," she announced. "That's good, right?"

When no one replied, she continued her story. "That village, or the valley where the village was, was the home of the Yapchi deity. For centuries that deity had lived in a self-actuated statue, a rock shaped like a sitting Buddha. Two eyes had been painted on it in ancient times, so it could better see the world and to remind those who lived in the valley that it was always watching."

"And the soldiers took the statue?" Shan asked.

"Not exactly," Nyma said in a melancholy tone. "When they finished shelling, the Tibetan soldiers were dead, for they had been too weak to flee. The surviving villagers ran to the deity in the center of the valley, about fifty of them, mostly women and children and old men. The Chinese officer of the Lujun laughed and called for them to surrender. If they agreed to be their porters, to carry the soldiers' equipment to the Chinese border, he would let them live. When they refused he selected ten soldiers and sent them with swords among the villagers. They slaughtered the people like goats, cut them into pieces, laughing like it was great sport. No one from that Tibetan officer's family survived."

She turned suddenly and stared at the blackness at the back of the chamber, as if she felt she were being watched from inside the mountain. "Only those few who happened to be away from the village survived. A caravan from the village was away at the holy lake. And there was a girl with sheep up on the slopes who watched it all. But the soldiers found the girl trying to reach the bodies. The officer made her watch as he smashed the deity into tiny pieces with a hammer. Then he took the only piece big enough to recognize, the single eye, the chenyi," she said, meaning the right eye. "The officer said the eye had witnessed the vindication of the Lujun and he would give it to his general as a trophy."

Nyma's voice drifted off and she looked toward the menacing cloud again. "They ordered the girl to find her mother among the bodies, then bound her to her mother's dead body, face to face, and left her there. Monks from the gompa on the other side of Yapchi Mountain found her there after three days."

There was a long silence as Shan studied first Nyma, then the dark cloud.

"And your people recorded the story," Lokesh said over Shan's shoulder-

"That little girl, she was my grandmother. She helped to bury them. Our people don't give the dead to the birds. We give them back to the soil. She helped put them in a big grave. When I was young she used to sit at the grave and recite all the names of the dead to me."

The Golok had his chang bottle in midair as Nyma made the announcement. He lowered the bottle, stared at it for a moment. "The bastards," he offered, as though to comfort the nun, then packed the bottle away.

"Afterwards," Nyma added, "people kept watch for the chenyi stone. It was kept in an army museum near Beijing for many decades and a man from Yapchi obtained special charms from lamas and traveled there to bring it back. But the Chinese shot him as a spy. The eye disappeared after the communists came. But we found out that parts of the Lujun were reconstituted into the People's Liberation Army."

"The 54th Mountain Combat Brigade," Shan suggested.

Nyma nodded. "After they were assigned to duty in Tibet, people kept a close watch on them. Another man from the village went to speak with the army but he was arrested and went to lao gai, where he died. A secretary saw the chenyi stone on the desk of the colonel of the brigade in Lhasa and sent word. After a few months a letter was sent to Lhasa, signed by all our villagers, asking that it be returned. But the only thing that happened was that the township council sent back the letter and demanded extra taxes from us. Then last year when the Chinese celebrated August First in Lhasa that colonel had it taped to the turret of a tank in the parade." August First was the day reserved for celebrating the People's Liberation Army. "The soldiers laughed and pointed at it to taunt the Tibetans. Someone took a photograph and brought it to us."

"Purbas," Shan said, not expecting an answer. "Drakte stole it back."

"Someone else, I think. I don't know for certain. Purbas know how dangerous it can be to share secrets. We don't want to know. People get captured. The Chinese use drugs that unbind their tongues."