'That's a mystery no scholar has ever been able to fathom. Anyhow, the centre of authority began to shift southward, and the warrior tribes moved in that direction. At the end of the sixteenth century the chief native power was round about the Zambesi. The Mazimba and the Makaranga had come down from the Lake Nyassa quarter, and there was a strong kingdom in Manicaland. That was the Monomotapa that the Portuguese thought so much of.'

Wardlaw nodded eagerly. The story was getting into ground that he knew about.

'The thing to remember is that all these little empires thought themselves the successors of Prester John. It took me a long time to find this out, and I have spent days in the best libraries in Europe over it. They all looked back to a great king in the north, whom they called by about twenty different names. They had forgotten about his Christianity, but they remembered that he was a conqueror.

'Well, to make a long story short, Monomotapa disappeared in time, and fresh tribes came down from the north, and pushed right down to Natal and the Cape. That is how the Zulus first appeared. They brought with them the story of Prester John, but by this time it had ceased to be a historical memory, and had become a religious cult. They worshipped a great Power who had been their ancestor, and the favourite Zulu word for him was Umkulunkulu. The belief was perverted into fifty different forms, but this was the central creed - that Umkulunkulu had been the father of the tribe, and was alive as a spirit to watch over them.

'They brought more than a creed with them. Somehow or other, some fetich had descended from Prester John by way of the Mazimba and Angoni and Makaranga. What it is I do not know, but it was always in the hands of the tribe which for the moment held the leadership. The great native wars of the sixteenth century, which you can read about in the Portuguese historians, were not for territory but for leadership, and mainly for the possession of this fetich. Anyhow, we know that the Zulus brought it down with them. They called it Ndhlondhlo, which means the Great Snake, but I don't suppose that it was any kind of snake. The snake was their totem, and they would naturally call their most sacred possession after it.

'Now I will tell you a thing that few know. You have heard of Tchaka. He was a sort of black Napoleon early in the last century, and he made the Zulus the paramount power in South Africa, slaughtering about two million souls to accomplish it. Well, he had the fetich, whatever it was, and it was believed that he owed his conquests to it. Mosilikatse tried to steal it, and that was why he had to fly to Matabeleland. But with Tchaka it disappeared. Dingaan did not have it, nor Panda, and Cetewayo never got it, though he searched the length and breadth of the country for it. It had gone out of existence, and with it the chance of a Kaffir empire.'

Captain Arcoll got up to light his pipe, and I noticed that his face was grave. He was not telling us this yarn for our amusement.

'So much for Prester John and his charm,' he said. 'Now I have to take up the history at a different point. In spite of risings here and there, and occasional rows, the Kaffirs have been quiet for the better part of half a century. It is no credit to us. They have had plenty of grievances, and we are no nearer understanding them than our fathers were. But they are scattered and divided. We have driven great wedges of white settlement into their territory, and we have taken away their arms. Still, they are six times as many as we are, and they have long memories, and a thoughtful man may wonder how long the peace will last. I have often asked myself that question, and till lately I used to reply, "For ever because they cannot find a leader with the proper authority, and they have no common cause to fight for." But a year or two ago I began to change my mind.

(Editor：two)