Jakli's eyes had grown moist as Shan spoke. She looked at Lokesh, then turned away, into the wind, and urged her horse forward.

They rode for another hour, descending constantly, until they reached the junction of several horse trails behind a long narrow structure at the head of a gravel road. The three-sided building was constructed of cinder blocks that had begun to crumble into dust. At one end the wall had partially collapsed, causing a sharp dip in the corrugated tin roof. To avoid total calamity, stout logs had been braced on sheets of plywood that pressed against the exterior walls. As they dismounted and walked around the end of the building, Shan saw half a dozen trucks in various states of disrepair, sitting in the shadows of the building. The garage and its motor pool was operated on Ministry of Agriculture subsidies, Akzu explained, for the small farming and herding enterprises in the region.

A small cubicle had been constructed of plywood in the rear corner of the building, at the end where the wall was intact. On a crude door cobbled together of wood and cardboard was a faded poster of a dozen young men and women representing some of the scores of ethnic groups that had been liberated by Beijing. Clad in the blue uniforms of the proletariat, they all joyfully raised wrenches and hammers toward the sky. Cultivate the Wealth of the Minorities, the caption read.

Past the door sat an emaciated short-haired dog and a short dark man with several days' growth of beard and stains of motor oil on his hands and arms. Reading a newspaper at a rusty metal desk, the man glanced up as Akzu appeared, offered a grunt of greeting and pointed to a board from which five nails extended, each holding a ring of keys.

"Leave quickly, uncle," Jakli said softly as she approached the door. "The clan needs you."

The man's head snapped up at the sound of her voice. He looked at Jakli with a frown, then back to Akzu. "Checkpoints," he muttered. "Four miles up the road to Yoktian, then out on the main highway, going west."

"Jakli is taking them-" Akzu began.

The man interrupted Akzu with an upraised hand. "Don't want to know where, old friend. Too many people asking too many questions these days. Just a mechanic, that's all I want to be." He picked up the paper, revealing an open ledger book underneath, then slammed the ledger shut and gazed at the board of keys.

"Take the turtle," he said, pointing to the last set of keys in the row. "We never officially acquired it, so it's not on the books. Don't have to record anything."

Akzu tossed Jakli the keys and pointed toward the last bay, which held a small sturdy truck that appeared to have been assembled from parts of other vehicles. It had wide tires, a short cargo bay constructed of rough cut lumber, an oversized gas tank that extended along the frame, and a long cab, so large it accommodated a narrow rear seat. The high, rounded lines of the cab did indeed resemble a turtle shell.

"Who?" Akzu asked the man.

The man frowned again. Too many questions, he had said. "Grey," he offered with a tone of resignation, and Shan realized Akzu meant, whose checkpoint? Grey was the color of the Public Security troops, the knobs. The army wore green. Traffic police wore blue. "But she's not there. Too busy elsewhere. Grabbed four yesterday. Three the day before, I hear, from town. Some teachers from the school. Motor pool. That's how I heard. They took a driver."

Jakli, who had just gestured for Shan to join her at the truck, stopped abruptly at the announcement. She stepped back toward the cubicle. "On what grounds?" Jakli asked in a raised voice. Shan had begun to under stand something about the spirited Kazakh woman. If Lokesh sometimes unexpectedly overflowed with sorrow, then Jakli was subject to attacks of defiance in a similarly unpredictable manner.

"On the grounds that she is the prosecutor," the man replied, but he looked at Akzu, as if he were not inclined to converse with Jakli. "It's about that woman, Lau, someone said. They're taken for questioning about her disappearance. You knew Lau. They could take you too."

"But she drowned," Akzu said, exchanging a worried glance with Jakli. "People say she drowned."

"So I heard. But no body was found. Anyway, must have been a slow time in town."

"What do you mean?" Shan asked.

The mechanic looked at him with the same reluctance he had shown with Jakli. "Army shoots someone, that's national defense. Public Security knobs shoot someone, that's for public security, by definition. We shoot one of them, that's assassination. Simple. Like inserting pegs on a board. They have forms all printed up. But this one, just an old Kazakh woman disappearing? A Kazakh or Uighur here or there, usually she doesn't care."

"But this time," Shan observed, "the Prosecutor is putting up checkpoints and picking up witnesses."

"Not witnesses," the mechanic shot back. "The actors in her latest production. The political gallery."

Shan studied the man. He suspected the man had not always been a mechanic. "The prosecutor is using it," he said, nodding his agreement.

The mechanic held up his hand again, as if signaling that he would hear no more of such dangerous talk. Akzu gently pushed Jakli out of the cubicle as the mechanic went back to his paper.

Moments later Jakli stood at the driver's door as Akzu showed her a map pulled from the visor of the truck and pointed to several dotted lines that wandered back and forth across the dark line that represented the Kashgar highway. "Go with speed, niece," the headman said. "Then back to town. You will be missed at the factory. You take too many risks. Remember Nikki. Remember your aunts."

Nikki. Shan remembered Malik, speaking of the present he was carving. There had been another name which the boy had been wary of speaking.

"Always," Jakli said with a shy smile that encompassed both Akzu and Shan. "Watch for Malik, Uncle," she added. "Watch for the children." She gave Akzu a quick embrace, then froze.

A bright red truck was skidding to a halt in the loose gravel in front of the garage. Shan recognized the gleaming vehicle as one of the four-wheel-drive trucks produced by an American joint venture in Beijing, a factory he had audited once in his prior incarnation. On the front door of the truck was a large insignia in gold, a representation of the head and shoulders of a man and a woman, their arms crossed over a rising sun, one hand holding a hammer, the other a wrench. Below the sun was an oil derrick, a tractor, and an animal that may have been a sheep. Shan realized he had seen it before, two nights earlier, on the truck that had stopped them in the Kunlun. The Brigade had arrived.

Akzu quickly stepped out of the garage, into the sunlight, in front of the red truck, as if to distract the new arrivals. As he did so a Han Chinese emerged from the rear seat, a man of perhaps thirty years, wearing a red nylon parka that bore a minature version of the same emblem on its breast and sunglasses under an American-style front brimmed hat. He rapped a knuckle on the window of the front passenger seat and pointed toward the cubicle in the shadows. The two men in the front emerged, the driver holding a clipboard, the other a small calculator, and stepped briskly toward the cubicle.

Shan felt a tug at his sleeve. Jakli was pulling him back, behind the turtle truck. He let himself be eased into the shadow as he watched a second figure climb out of the back seat, a tall, lean man with a thin face and high cheekbones, wearing a brown suitcoat, at least two sizes too small, over the blue pants of a factory worker. Shan glanced at Lokesh and saw from Lokesh's sudden interest that his old friend had also recognized the man's features. The tall man was unmistakably Tibetan.