Leon gave the hand signal to his askari to load, and the breech bolts snickered as the .303 rounds were cranked up into the chambers of the long-barrelled Lee-Enfields. Another hand signal and they went forward cautiously in skirmishing formation.

Only two birds, Leon thought. They might be strays. There would have been more of them if . . . From directly ahead he heard the loud flapping of heavy wings and another vulture rose from beyond the screen of banana plants. Leon felt the chill of dread. If the brutes are settling that means there’s meat lying out there, dead meat.

Again he signalled the halt. He stabbed a finger at Manyoro, then went forward alone, Manyoro backing him. Even though his approach was stealthy and silent he alarmed more of the huge carrion-eaters. Singly and in groups they rose on flogging wings into the blue sky to join the spiralling cloud of their fellows.

Leon stepped past the last banana plant and stopped again at the edge of the open parade-ground. Ahead, the mud-brick walls of the boma glared, with their coating of limewash. The front door of the main building stood wide open. The veranda and the baked-clay surface of the parade-ground were littered with broken furniture and official government documents. The boma had been ransacked.

Hugh Turvey and his wife, Helen, lay spreadeagled in the open. They were naked and the corpse of their five-year-old daughter lay just beyond them. She had been stabbed once through her chest with a broad-bladed Nandi assegai. Her tiny body had drained of blood through the massive wound, so her skin shone white as salt in the bright sunlight. Both her parents had been crucified. Sharpened wooden stakes had been driven through their feet and hands into the clay surface.

So the Nandi have learned something at last from the missionaries, Leon thought bitterly. He took a long, steady look around the border of the parade-ground, searching for any sign that the attackers might still be near by.