I've often meant to go up and look for it.'

Tam and I pressed him to explain, which he did slowly after his fashion.

'Did you ever hear of I.D.B.—illicit diamond broking?' he asked me. 'Well, it's notorious that the Kaffirs on the diamond fields get away with a fair number of stones, and they are bought by Jew and Portuguese traders. It's against the law to deal in them, and when I was in the intelligence here we used to have a lot of trouble with the vermin. But I discovered that most of the stones came from natives in one part of the country—more or less round Blaauwildebeestefontein—and I see no reason to think that they had all been stolen from Kimberley or the Premier. Indeed some of the stones I got hold of were quite different from any I had seen in South Africa before. I shouldn't wonder if the Kaffirs in the Zoutpansberg had struck some rich pipe, and had the sense to keep quiet about it. Maybe some day I'll take a run up to see you and look into the matter.'

After this the talk turned on other topics till Tam, still nursing his grievance, asked a question on his own account. 'Did you ever come across a great big native parson called Laputa? He came on board as we were leaving Durban, and I had to turn out of my cabin for him.' Tam described him accurately but vindictively, and added that 'he was sure he was up to no good.'

Aitken shook his head. 'No, I don't know the man. You say he landed here? Well, I'll keep a look–out for him. Big native parsons are not so common.'

Then I asked about Henriques, of whom Tam knew nothing. I described his face, his clothes, and his habits. Aitken laughed uproariously.

'Tut, my man, most of the subjects of his Majesty the King of Portugal would answer to that description. If he's a rascal, as you think, you may be certain he's in the I.D.B. business, and if I'm right about Blaauwildebeestefontein you'll likely have news of him there some time or other. Drop me a line if he comes, and I'll get on to his record.'

I saw Tam off in the boat with a fairly satisfied mind. I was going to a place with a secret, and I meant to find it out. The natives round Blaauwildebeestefontein were queer, and diamonds were suspected somewhere in the neighbourhood.

Henriques had something to do with the place, and so had the Rev. John Laputa, about whom I knew one strange thing. So did Tam by the way, but he had not identified his former pursuer, and I had told him nothing. I was leaving two men behind me, Colles at Durban and Aitken at Lourenco Marques, who would help me if trouble came. Things were shaping well for some kind of adventure.

The talk with Aitken had given Tam an inkling of my thoughts. His last words to me were an appeal to let him know if there was any fun going.

'I can see you're in for a queer job. Promise to let me hear from you if there's going to be a row, and I'll come up country, though I should have to desert the service. Send us a letter to the agents at Durban in case we should be in port. You haven't forgotten the Dyve Burn, Davie?'

CHAPTER III

BLAAUWILDEBEESTEFONTEIN

The Pilgrim's Progress had been the Sabbath reading of my boyhood, and as I came in sight of Blaauwildebeestefontein a passage ran in my head. It was that which tells how Christian and Hopeful, after many perils of the way, came to the Delectable Mountains, from which they had a prospect of Canaan. After many dusty miles by rail, and a weariful journey in a Cape–cart through arid plains and dry and stony gorges, I had come suddenly into a haven of green. The Spring of the Blue Wildebeeste was a clear rushing mountain torrent, which swirled over blue rocks into deep fern–fringed pools. All around was a tableland of lush grass with marigolds and arum lilies instead of daisies and buttercups. Thickets of tall trees dotted the hill slopes and patched the meadows as if some landscape–gardener had been at work on them.