A Traitor in London by Fergus Hume — Read

After the excitement of that day and night came five days of quiet -- quiet at least for Captain and Mrs. Burton, held prisoners as they were in a Boer house on the slope of a rocky hill sparsely covered with grass. It was the homestead of a sheep farm and the animals fed amongst the hills, and, when the seasons served, down on the plain. The stone house was solidly built; it was of one storey, with a roof of corrugated iron, and was comfortable enough after the Dutch fashion, so that on the whole Brenda and her husband were not unpleasantly situated. More over they were allowed to be together -- a privilege which they valued highly. Indeed, it was the sole thing which rendered this captivity tolerable.

As it happened, Piet Bok was unable to send them to Pretoria as he had wished. The Boers were now engaged with Buller's division, and were falling back to a hill called Spion Kop, a name hardly known at that time, but fated in two or three days to be spoken of all over the world. Not a burgher could be spared to escort them to the capital, but, strangely enough, a sufficient number were told off to guard the farm house. Harold was somewhat suspicious of this arrangement -- suspicious that somehow Van Zwieten had had to do with it; but he had no means of making certain. The Dutchman had never come near them, but they feared him all the more now that he was out of sight, and fully expected some fresh trouble. As he had warned Mrs. Burton, he had not done with them yet.