“Yes, I’m sure of it, sir,” said the sergeant.

“All right, then; run down and get behind that piece of rock. I’ll do it directly.”

“No, no, sir; let me do it,” pleaded the sergeant.

“’Tention!” roared Dickenson. “Quick! No time to lose. Off at once.”

The sergeant’s lips parted as if he were about to say something, but Dickenson gave him a stern look and pointed downward towards the stone, when discipline ruled, and the man doubled away to it, grumbling and growling till he was lying down panting as if he were out of breath.

“I could have done it better myself,” he said hoarsely; and then, “Oh, poor lad, poor lad! If—if—”

There was a sharp crack, followed by a pause filled up by the shrieking and yelling of the wounded Boers. Then the sergeant felt that he must raise his head and see how matters were going on; but he refrained, for there was a peculiar hissing noise. Dickenson had taken about twenty matches out of the box he carried, held them ready, and ignoring the fuse, he struck the bundle vigorously, stretched out his hand, which was almost licked by the flash of flame, and applied it to the thickly-laid train.

For a few moments there was no result, the wind nearly blowing out the blazing splints; but just as the young man was hesitating about getting out more matches—phitt! There was a flash as the powder caught and the flame began to run in its zigzag course right along the ground towards the nearest ammunition-wagon.

Turning sharply, Dickenson laid his hands upon a block of loose stone, vaulted over it, and dropped flat upon his face, conscious the while of the piteous cries of the wounded men.

The next instant there was a tremendous concussion, the stone giving him a violent blow, and as the sky above seemed to blaze there was a roar like thunder, then a perceptible pause, another roar, again a pause, and another roar.