blocked. Colvin lighted another vesta, and bent down. Through the piled-up dust he made out what looked like a square rectangular stone. Stone? No—it was wood. It was one of three long flat packing-cases, piled one on top of the other. His nerves tingled with excitement. What discovery was he on the point of making? At any rate, whatever it might be, he would make it.

      Now that his vision was accustomed to the semi-gloom he had no need of artificial light. The glimmering that entered from the outer day was sufficient. He hauled out the uppermost case. But how to open it? That might be done. Fortunately, he was provided with a large pocket-knife, containing various appliances which included a strong screwdriver. What was he going to discover? Human remains? Perhaps. Why, there might be others stowed away in like manner; victims of the wild and lawless inhabitants of this remote mountain district.

      Then it occurred to him that the chest was very heavy. What on earth could it contain, and, by the way, what right had he to pry into its contents? For a moment he paused. But the curiosity and excitement attending upon this discovery were too great. Possibly, even, these chests and their contents had lain there for years and years unknown to anybody—even to the owner of the wild, and stony, and scattered stock-run on which they were hidden, but remembering Gert’s story that did not seem likely. Anyway, he would share the mystery with whoever held it. That could do no harm to anybody.

      The lid was strongly screwed down. A few minutes of vigorous perspiring work and it was up. Whatever the contents were, they were protected by a thick wrapper of oilskin. This he proceeded to unwind, but carefully, so as to be able to replace it readily. Then a quantity of tow, also well oiled, and then—

      No human remains, no shining coins, no old and massive silver, no treasure of any kind met his eager gaze. But there, in the top of the box, lay several rifles in a row.

      He took one out, carried it as near the light of day as he dared go, and examined it. The weapon was one of the newest pattern—a Mauser. The others on the top layers were all alike. Allowing for the depth of the chest, he reckoned that it must contain at least a couple of dozen rifles. Here was a discovery. What was the meaning of this secret armoury? There could be only one. For only one purpose could these weapons be stowed away thus in the caves of the rocks—for the arming of the rebel Boers when the word went forth for them to rise, and join their brethren in the Transvaal and Free State, to throw off the British yoke from the Zambesi to Cape Agulhas.

      Replacing the rifle, he rapidly screwed down the case, and stowed it away in the hole whence he had taken it, carefully piling up the dust and loose earth against it and the others so as to obviate all trace of interference. Hardly had he done so than the sound of hoof-strokes and harsh voices without struck upon his ear. Peering cautiously forth, he beheld, down upon the track from which he had ascended, two armed and mounted Boers, and they were in close confabulation with Gert Bondelzwart, his retainer.