Crash! crash! A long, detonating roar, then crash! again. The rock-circle is a perfect ring of flame, sheeting forth in red jets athwart the hanging sulphurous smoke. Death-yells are mingling with the fearful war-shout. Shields are flung high in the air, and dark bodies, leaping, fall forward upon their faces, to be trampled into lifelessness as their own comrades tread them down, not pausing, rushing over them as they lie.

"No, no! no quicker," reproves Hazon, who is directing here, where the assailant's force is the strongest, namely, the main body, the isifuba or breast of the impi. "Fire steadily and low, as before, but no quicker."

His followers growl a ready assent. They are unmitigated ruffians, but terrible and determined fighters. The fanatical fatalism of the Mohammedan creed renders them utterly impervious to panic. They keep up a steady, quick-loading fire into the charging Ba-gcatya, and, aiming low, every shot tells, committing fearful havoc among the serried, onrushing masses. Yet those terrible warriors are dauntless. Whole lines go down; still, others surge over them, and now the charge is but two hundred yards from the line of rocks.

The fore ranks hesitate, then come to a halt, crumpling back upon those behind them. The slavers, with a shrill, ringing yell, seeing their opportunity, pour a frightfully raking volley into the momentarily confused mass. Shields are clashed together, spears wildly waving. For the moment it seems as though the Ba-gcatya were fighting with each other, striving to hew their way through their own ranks in their endeavours to escape beyond the reach of that awful and destructive fire.

"Give it to them again!" growls Hazon, a lurid gleam in his deep-set, piercing eyes. "But, aim low—aim low!"

Again not a shot is thrown away. That side of the savage host falls back hurriedly, leaving the ground bestrewn with bodies, dead, dying, crushed. A perfect storm of exultant cheers greets this move.

But if a temporary retreat, it is no rout. In obedience to a rapidly-uttered, whistling signal, fully one-half of the main body swings round and hurls itself with incredible force and fury upon another point of the rock-circle, seemingly the weakest point, for here the rocks are low and apart, and have to be supplemented with bags and bales.

Laurence Stanninghame is in command here. And now his dark face flushes with the glow of a mad excitement, a perfectly transforming exhilaration. He would thunder his commands aloud, but that a deadly coolness is as indispensable almost as accuracy of aim. His orders are the same as Hazon's and uttered as calmly—but for a suppressed tremor—and as audibly.

The very earth seems to rock and reel beneath the detonating roll of the volleys, the thunderous rumble of charging feet. The dark, glaring faces of warring demons, the flinging aloft of shields, the groaning and yells, the redness of the sheeting flames, all this renders him mad—mad with the revel of conflict, with the herculean determination which is sublime above death. Here again whole lines of the enemy are down. Here again those in front would draw back if they could, but the immense weight behind hurls them on. It is the work of but very few moments.

And now the whole of the Ba-gcatya host is circling around the slaver's position, every now and again making a furious rush upon what seems a weak point of the defences. But the defenders have a way of massing upon each point thus attacked, and that with a celerity which is truly marvellous, and the result is the same. Yet with each repulse the terrible ranks leap forward immediately, and every such charge brings them nearer than the last. Moreover, as each of their fighting leaders is picked off, another springs forward with unparalleled intrepidity to take his place. The while the barking roar of their terrific slogan rends the air in its most demoniacal clamour.

Now an idea takes hold on the minds of these ferocious legionaries, and it is passed like lightning round the ranks. Those in the forefront haul up the bodies of the slain, and, holding them to them, stagger forward, thinking to make a buckler of the dead for the living. But the terrible rifles of the slavers drive their unerring missiles at that short range through dead and living alike, and corpse is heaped upon corpse in ghastly intertwining.

In the thickest of the tumult Hazon is here, there, everywhere—directing, encouraging, restraining. But for the demon-glow in the black eyes staring from the pale, set face, the man might have been made of marble, so little trace of emotion of any kind does he display. Laurence, too, is wary and self-contained, though getting in here and there a telling shot. Holmes, on the other hand, is firing away as fast as he can load. So far not a man has been injured. The assailants are not quite within spear-throwing distance yet.

"Ammunition hold out? Oh, yes, we have plenty of that," is Hazon's reply to a rapid, low-toned query on the part of Laurence. "But it's time they turned tail. Isandhlwana was nothing to this."

But now, with a deafening, vibrating roar the Ba-gcatya, massing suddenly, hurl fully one-half of their force upon the point directed by Lutali. They surge up the slope in one dense charge of lightning swiftness. Bullets are hailed upon them. They waver not. The hands of the defenders are skinned and blistered by contact with the breeches of their own rifles, so hot have these become through quick firing, and still the firing is not quick enough. Stumbling, leaping, flying over the defences they come—a great cloud of dark, grim faces, and bared teeth, and protruding eyeballs. They spring upon the defences, then over them. The whole might of the redoubtable foe is pouring into the natural fortress.

STUMBLING, LEAPING, FLYING OVER THE DEFENCES THEY COME.

Now ensues a scene the like of which might be paralleled, but hardly surpassed, by some lurid drama of hell. In jarring shock they meet, those within and those, till now, without—the savage legionaries of "The Spider," and the no less savage and equally determined slave-hunters. The Wangoni, seeing their chance, have sprung forward to meet and roll back the assailants. But they themselves are beaten down by the broad shields, ripped with the terrible stabbing spears of the ferocious Ba-gcatya, now maddened to assuage their blood-thirst, and whose crushing might, now pouring over in countless numbers, this handful shall never hope to resist. The chief, Mashumbwe, is speared and ripped. The struggle is fierce and hand-to-hand, but short. The Wangoni, now a sorry remnant, are rolled back upon their allies.

Of these not a man but knows that the day is lost, that flight is impossible; that if the other half of the Ba-gcatya host has not swarmed over to take them on the rear, it is only because it is waiting to receive on its spear points all who flee. But there is no thought of flight. With all their indifference to human suffering, with all their brutality, their savagery, the slavers are as brave as any. They are indeed men picked for their desperate courage, and now, standing back to back, they begin to render the victory of the Ba-gcatya a dearly bought one indeed.

The war-shout no longer rends the air. There is a grim, fell silence in this hand-to-hand conflict, broken only by the snake-like hiss of the Ba-gcatya as an enemy goes down, by the slap and shock of shield meeting clubbed gun or stabbing knife, by the gasps of the combatants. The cloud of powder smoke hanging overhead partially veils the sun, which glowers, a blood-red ball, through this gloomy shroud.

The whole space within the rock-circle is a very charnel-pit of corpses, among which the combatants stagger—victorious Ba-gcatya and vanquished slave-hunters alike—stagger and slip on a foothold of oozy gore; stab, and strike, and fall in their turn.

In the rush and the mÊlÉe Laurence Stanninghame has become separated even farther from his comrades,—his white comrades, that is,—nor can he by any effort hope to rejoin them. Several Arabs are around him, his own followers, swarthy sons of the Prophet, their keen eyes flashing hate and defiance upon the foe, their long ataghans sweeping a circle of light around them. In their forefront is Lutali—Lutali, whirling a great scimitar, hewing down more than one of the too venturesome Ba-gcatya, and that in spite of the broad bull-hide shield deftly wielded—Lutali, uttering a semi-religious war-cry, his erect form and keen, haughty face the very personification of absolute and dauntless valour. And he himself, wedged in by those around, can still get in now and again a telling shot from his revolver, and with every such shot one more warrior of "The Spider" has uttered his last battle cry.

No, there is no hope. Swift as lightning, a mighty brain-wave surges through Laurence's mind, and in it he sees the whole of his past life. Yet not even this dismays him—rather does it engender a sort of half-bitter exultation. Life for him has been such a mistake, and that not through any fault of his own. It held no especial charm for him. All its sweetness has been concentrated within one short idyllic period; but even that could not have lasted—even to it would have come disillusionment. Lilith would never learn his fate. It, and that of those with him, would vanish, as others had done, into the mysteries of this great mysterious continent. All this and more—so lightning-like is the power of thought—passes through Laurence Stanninghame's brain at this dread and awful moment.

A casting spear strikes him on the left shoulder, penetrating the flesh. Infuriated by the sharp, sickening pang, he discharges his revolver at the supposed thrower, but his aim is uncertain. Again he draws trigger. The hammer falls with a harmless click; the chambers are empty. And now, hard pressed by the yelling Ba-gcatya, those of his followers yet between him and the enemy stagger back, fighting furiously, while the life-stream wells from many a gashed and gaping wound. No longer can he see either Hazon or Holmes, for the forest of waving, reeking spear blades. Then one of his own followers, a hulking Swahili, mortally wounded, reels and falls, and, doing so, bears back Laurence beneath his ponderous weight. The rock-rampart is immediately behind him, and is low here. It catches the back of his knees, and now, having lost all control over his balance, grasping at empty air in wild effort to recover himself, Laurence pitches heavily backward over the rocks, and lies half stunned upon the plain without.

Those of the Ba-gcatya host in waiting on that side surge tumultuously forward, uttering yells of savage delight. This is the first of the doomed slavers who has come over; and he a white man, and of course a leader. Each warrior is eager to bury his spear-head in this man's body, and they crowd around him, every right hand raised aloft for the downward stroke.

But the fatal stroke remains undealt. Broad blades quiver aloft in a ring of steel. Each grim, bloodthirsty countenance is set and staring, stony in its indescribable expression of mingled marvel and awe, and eyeballs seem to start from their sockets as their owners stand gazing down upon this prostrate white man. Then from each broad chest a gasp bursts forth:

"Au! The Sign! The Sign of the Spider!"