“No,” said his father; “it might be very serious. Let it be a lesson to you, boys.”

“It was, father,” said Mark, and he gave his cousin a meaning look, which was returned, the latter saying to himself, “It takes some of the conceit out of you, old fellow.”

The conversation then turned upon the disappearance of the two blacks, and Dunn’s ominous words as to the possibility of their non-return.

“I hope he is not right,” said the doctor, shaking his head, “but I am afraid he is. From your description, boys, it is quite evident that the one made the other fully understand about the missing rifle.”

“Oh, but I don’t want to think, sir, that those two poor fellows are going to get themselves killed in trying to bring it back.”

“Neither do I, my boy,” said Sir James, “and pretty well surrounded as we are by these people, it is rather a lesson to us, for the doctor and I have been talking about it that we can’t afford to lose two such useful guides and friends.”

“Oh, we shan’t lose them, uncle,” said Dean cheerily. “They will come trotting in some day—I mean Pig will, so as to keep up with Mak’s long strides.”

“Well, I hope so,” said Sir James, “and I hope too that the little feud between us and our visitors will come to an end. What do you think, doctor?”

“I cannot commit myself, sir, to giving any judgment upon the matter, but I hope that our display of firmness, and the possession of weapons that we know how to use, may keep them at a distance.”

“I hope so,” said Sir James, “but there will be no relaxing of our watchfulness, and it will be very hard upon us after a hard day’s work over our researches, this taking it in turns to guard against visitors in search of what they can annex.”