Out on his left flank Sergeant Manyoro clicked his tongue against the roof of his mouth. Leon jerked back from Verity’s boudoir to the present and froze at the soft warning. His mind had been wandering and he had been derelict in his duty. Every nerve in his body came up taut as a fishing line struck by a heavy marlin deep in the blue waters of the Pemba Channel. He lifted his right hand in the command to halt and the line of askaris stopped on either side of him. He glanced from the corner of his eye at his sergeant.

Manyoro was a morani of the Masai. A fine member of that tribe, he stood at well over six feet, yet he was as slim and graceful as a bullfighter, wearing his khaki uniform and tasselled fez with panache, every inch the African warrior. When he felt Leon’s eyes on him he lifted his chin.

Leon followed the gesture and saw the vultures. There were only two, turning wing-tip to wing-tip high above the rooftops of the boma, the government’s district-administration station at Niombi.

‘Shit and corruption!’ Leon whispered softly. He had not been expecting trouble: the centre of the insurrection was reported seventy miles further west. This government outpost was outside the traditional boundaries of the Nandi tribal grounds. This was Masai territory. Leon’s orders were merely to reinforce the government boma with his few men against any possibility that the insurrection might boil over the tribal borders. Now it appeared that that had happened.

The district commissioner at Niombi was Hugh Turvey. Leon had met him and his wife at the Settlers’ Club ball in Nairobi the previous Christmas Eve. He was only four or five years older than Leon but he was in sole charge of a territory the size of Scotland. Already he had earned a reputation as a solid man, not one to let his boma be surprised by a bunch of rebels. But the circling birds were a sinister omen, harbingers of death.