"No prisoners, Arslan," Genghis said. His general bowed his head.

The slaughter became methodical after that. Men were discovered hiding in the fort's cellars and dragged out for execution. As the day wore on, the dead soldiers were piled on the red stones of a central courtyard. A well there became the eye of the storm as every drythroated man found time to quench his thirst in water, bucket by bucket until they were gasping and soaked. They had beaten the desert.

As the sun began to set, Genghis himself walked to the well, stepping over the piles of twisted dead. The warriors fell silent at his step and one of them filled the leather bucket and handed it to the khan. As Genghis drank at last and grinned, they roared and bayed in voices loud enough to echo back from the walls all around. They had found their way through the maze of rooms and halls, cloisters and walkways, all strange to their eyes. Like a pack of wild dogs, they had reached right to the far side of the fort, leaving the black stones bloody behind them.

The commander of the fort was discovered in a suite of rooms hung with silk and priceless tapestries. It took three men to batter down the door of iron and oak to reveal Shen Ti, hiding with a dozen terrified women. As Khasar strode into the room, Shen Ti tried to take his own life with a dagger. In his terror, the blade slipped in his sweating hands and merely scored a line in his throat. Khasar sheathed his sword and took hold of the man's fleshy hand over the hilt, guiding it back to the neck a second time. Shen Ti lost his nerve and tried to struggle, but Khasar's grip was strong and he drew the dagger sharply across, stepping back as blood spurted out and the man flailed in death.

"That is the last of them," Khasar said. He looked the women over and nodded to himself. They were strange creatures, their skin powdered as white as mare's milk, but he found them attractive. The scent of jasmine mingled with the stench of blood in the room, and Khasar smiled wolfishly at them. His brother Kachiun had won an Olkhun'ut girl for his wife and had two children already in his ger. Khasar's first wife had died and he had no one. He wondered if Genghis would let him marry two or three of these foreign women. The idea pleased him enormously and he stepped to the far window, looking out on the lands of the Xi Xia.

The fort was high in the mountains and Khasar had a view of a vast valley, with cliffs stretching away into the haze on either side. Far below, he saw a green land, studded with farms and villages. Khasar breathed deeply in appreciation.

"It will be like picking ripe fruit," he said, turning to Arslan as the older man entered. "Send someone to fetch my brothers. They should see this."

GenghisLordsoftheBow

T HE KING SAT IN THE HIGHEST ROOM of his palace, looking over the flat valley of the Xi Xia. With the dawn mist rising off the fields, it was a landscape of great beauty. If he did not know there was an army out there beyond sight, the land might have seemed as peaceful as any other morning. The canals shone in the sun like lines of gold, carrying precious water to the crops. There were even distant figures of farmers out there, working without thought for the army that had entered their country from the northern desert.

Rai Chiang adjusted his robe of green silk, patterned in gold. Alone, his expression was calm, but as he stared out into the dawn, his fingers picked nervously at a thread, worrying at it until it caught in his nails and snapped. He frowned, looking down at the damage. The robe was a Chin weave, worn to bring him luck in the matter of reinforcements. He had sent a letter with two of his fastest scouts as soon as he heard of the invasion, but the reply was long in coming.

He sighed to himself, his fingers resuming their picking without his being aware of it. If the old Chin emperor had lived, there would be fifty thousand soldiers marching to defend his little kingdom, he was sure of it. The gods were fickle to have taken his ally at the very moment when he needed aid. Prince Wei was a stranger and Rai Chiang did not know whether the arrogant son would have the generosity of his father.

Rai Chiang considered the differences between their lands, wondering if he could have done more to ensure Chin support. His most distant ancestor had been a Chin prince and ruled the province as a personal fiefdom. He would have seen no shame in asking for aid. The Xi Xia kingdom had been forgotten in the great conflict centuries before, unnoticed as greater princes struggled against each other until the Chin empire had been cut in two. Rai Chiang was the sixty-fourth ruler since that bloody period. Since the death of his father, he had spent almost three decades keeping his people free of the Chin shadow, cultivating other allies and never giving offense that could lead to his kingdom being forcibly returned to the fold. One of his sons would one day inherit that uneasy peace. Rai Chiang paid his tribute, sent his merchants to trade and his warriors to swell the ranks of the Imperial army. In return, he was treated as an honored ally.

It was true Rai Chiang had ordered a new script for his people, one that bore little resemblance to Chin writing. The old Chin emperor had sent him rare texts by Lao Tzu and the Buddha Sakyamuni to be translated. Surely that was a sign of acceptance, if not approval. The Xi Xia valley was separate from the Chin lands, bordered by mountains and the Yellow River. With a new language, the Xi Xia would move further from the influence of the Chin. It was a dangerous and delicate game, but he knew he had the vision and energy to find the right future for his people. He thought of the new trade routes he had opened into the west and the wealth that was flowing back along them. All that was endangered by these tribes roaring out of the desert.

Rai Chiang wondered if Prince Wei would realize the Mongols had come round his precious wall in the northeast by entering the Xi Xia kingdom. It would do the Chin no good now the wolf had found the gate to the field.

"You must support me," he whispered to himself. It galled him to depend on the Chin for military aid, after so many generations easing his people away from their dependence. He did not know yet if he could bear the price Prince Wei would ask for that support. The kingdom could be saved only to become a province again.

Rai Chiang tapped his fingers in irritation at the thought of a Chin army on his land. He needed them desperately, but what if they did not leave when the battle was over? What if they did not come at all?

Two hundred thousand people already sheltered within the walls of Yinchuan, with thousands more gathered outside the closed gates. In the night, the most desperate tried to climb into the city, and the king's guards were forced to drive them off with swords or shoot a volley of arrows into their midst. The sun rose each day on fresh corpses, and more soldiers had to leave Yinchuan to bury them before they could spread disease, laboring under the sullen stares of the rest. It was a grim and unpleasant business, but the city could only feed so many and the gates remained closed. Rai Chiang worried at the golden threads until beads of blood appeared under his fingernails.

Those who had found sanctuary slept in the streets, the beds of every inn and lodging house long taken. The price of food was rising every day, and the black market thrived, though the guards hanged anyone caught hoarding. Yinchuan was a city of fear as they waited for the barbarians to attack, but three months had gone by with nothing but reports of destruction as the army of Genghis laid waste to everything in their path. They had not yet come to Yinchuan, though their scouts had been seen riding in the far distance.