They had passed valleys set to straggling crops and traded simple gifts with farmers as poor as any they had ever seen. Yet game was plentiful and his men had roasted fat deer on their fires. Perhaps that had been a mistake. The farmers had pointed to the mountains in warning, but he had not understood. He had no quarrel with the hill tribes, but in the night a host of warriors had overtaken them, coming out of the darkness with wild cries and slashing at the sleeping men. Kurkhask closed his eyes briefly. Only eight of his companions had survived the struggle, though he had not seen his oldest son since the first clash of arms. The boy had been scouting the path ahead and Kurkhask hoped he had survived to carry word back to the khan. That thought alone gave him pleasure to set against his vicious resentment.

The carts had been looted of their trinkets, the silver and jade stolen by the tribesmen. As Kurkhask watched from under lowered brows, he saw many of them now dressed in Mongol deels with dark splashes of blood on the cloth.

The chanting intensified until Kurkhask could see white spittle gather at the edges of the men’s mouths. He held his back very straight as the leader of the tribe drew a blade and advanced on the line, screaming. Kurkhask exchanged glances with the others.

‘After tonight, we will be with the spirits and see the hills of home,’ he called to them. ‘The khan will hear. He will sweep this land clean.’

His calm tone seemed to drive the Arab swordsman to an even higher pitch of fury. Shadows flickered across his face as he whirled the blade over a Mongol warrior. Kurkhask watched without expression. When death was inevitable, when he felt its breath on his neck, he had found all fear could be put aside and he could meet it calmly. That at least gave him some satisfaction. He hoped his wives would shed many tears when they heard.

‘Be strong, brother,’ Kurkhask called.

Before he could reply, the sword took the warrior’s head.