The silence deepened and deepened, the shadows grew blacker and blacker, then suddenly all nature began to moan beneath the breath of an icy wind.  On sped the wind; the smooth surface of the river was ruffled by it into little waves, the tall grass bowed low before it, and in its wake came the hissing sound of furious rain.

Ah! the storms had met.  From each there burst an awful blaze of dazzling flame, and now the hill on which we sat rocked at the noise of the following thunder.  The light went out of the sky, darkness fell suddenly on the land, but not for long.  Presently the whole landscape grew vivid in the flashes, it appeared and disappeared, now everything was visible for miles, now even the men at my side vanished in the blackness.  The thunder rolled and cracked and pealed like the trump of doom, whirlwinds tore round, lifting dust and even stones high into the air, and in a low, continuous undertone rose the hiss of the rushing rain.

I put my hand before my eyes to shield them from the terrible glare, and looked beneath it towards the lists of iron-stone.  As flash followed flash, from time to time I caught sight of the two wizards.  They were slowly advancing towards one another, each pointing at his foe with the assegai in his hand.  I could see their every movement, and it seemed to me that the chain lightning was striking the iron-stone all round them.

Suddenly the thunder and lightning ceased for a minute, everything grew black, and, except for the rain, silent.

“It is over one way or the other, chief,” I called out into the darkness.

“Wait, white man, wait!” answered the chief, in a voice thick with anxiety and fear.

Hardly were the words out of his mouth when the heavens were lit up again till they literally seemed to flame.  There were the men, not ten paces apart.  A great flash fell between them, I saw them stagger beneath the shock.  Indaba-zimbi recovered himself first—­at any rate when the next flash came he was standing bolt upright, pointing with his assegai towards his enemy.  The chief’s son was still on his legs, but he was staggering like a drunken man, and the assegai had fallen from his hand.

Darkness! then again a flash, more fearful, if possible, than any that had gone before.  To me it seemed to come from the east, right over the head of Indaba-zimbi.  At that instant I saw the chief’s son wrapped, as it were, in the heart of it.  Then the thunder pealed, the rain burst over us like a torrent, and I saw no more.

The worst of the storm was done, but for a while the darkness was so dense that we could not move, nor, indeed, was I inclined to leave the safety of the hillside where the lightning was never known to strike, and venture down to the iron-stone.  Occasionally there still came flashes, but, search as we would, we could see no trace of either of the wizards.  For my part, I believed that they were both dead.  Now the clouds slowly rolled away down the course of the river, and with them went the rain; and now the stars shone in their wake.