`We’ll leave the horses here,’ grunted Conan. `That treacherous slope is safer for a man on foot. Besides, they’re done.’
He swung down from the black stallion which stood with wide-braced legs and drooping head. They had pushed hard throughout the night, gnawing at scraps from saddle-bags, and pausing only to give the horses the rests they had to have.
`That first tower is held by the acolytes of the Black Seers,’ said Conan. `Or so men say; watch-dogs for their masters – lesser sorcerers. They won’t sit sucking their thumbs as we climb this slope.’
Kerim Shah glanced up the mountain, then back the way they had come; they were already far up Yimsha’s side, and a vast expanse of lesser peaks and crags spread out beneath them. Among these labyrinths the Turanian sought in vain for a movement of color that would betray men. Evidently the pursuing Afghulis had lost their chief’s trail in the night.
`Let us go, then.’ They tied the weary horses in a clump of tamarisk and without further comment turned up the slope. There was no cover. It was a naked incline, strewn with boulders not big enough to conceal a man. But they did conceal something else.
The party had not gone fifty steps when a snarling shape burst from behind a rock. It was one of the gaunt savage dogs that infested the hill villages, and its eyes glared redly, its jaws dripped foam. Conan was leading, but it did not attack him. It dashed past him and leaped at Kerim Shah. The Turanian leaped aside, and the great dog flung itself upon the Irakzai behind him. The man yelled and threw up his arm, which was torn by the brute’s fangs as it bore him backward, and the next instant half a dozen tulwars were hacking at the beast. Yet not until it was literally dismembered did the hideous creature cease its efforts to seize and rend its attackers.
Kerim Shah bound up the wounded warrior’s gashed arm, looked at him narrowly, and then turned away without a word. He rejoined Conan, and they renewed the climb in silence.
Presently Kerim Shah said: `Strange to find a village dog in this place.’
`There’s no offal here,’ grunted Conan.
Both turned their heads to glance back at the wounded warrior toiling after them among his companions. Sweat glistened on his dark face and his lips were drawn back from his teeth in a grimace of pain. Then both looked again at the stone tower squatting above them.
A slumberous quiet lay over the uplands. The tower showed no sign of life, nor did the strange pyramidal structure beyond it. But the men who toiled upward went with the tenseness of men walking on the edge of a crater. Kerim Shah had unslung the powerful Turanian bow that killed at five hundred paces, and the Irakzai looked to their own lighter and less lethal bows.
But they were not within bow-shot of the tower when something shot down out of the sky without warning. It passed so close to Conan that he felt the wind of rushing wings, but it was an Irakzai who staggered and fell, blood jetting from a severed jugular. A hawk with wings like burnished steel shot up again, blood dripping from the scimitar-beak, to reel against the sky as Kerim Shah’s bowstring twanged. It dropped like a plummet, but no man saw where it struck the earth.
Conan bent over the victim of the attack, but the man was already dead. No one spoke; useless to comment on the fact that never before had a hawk been known to swoop on a man. Red rage began to vie with fatalistic lethargy in the wild souls of the Irakzai. Hairy fingers nocked arrows and men glared vengefully at the tower whose very silence mocked them.
But the next attack came swiftly. They all saw it – a white puffball of smoke that tumbled over the tower-rim and came drifting and rolling down the slope toward them. Others followed it. They seemed harmless, mere woolly globes of cloudy foam, but Conan stepped aside to avoid contact with the first. Behind him one of the Irakzai reached out and thrust his sword into the unstable mass. Instantly a sharp report shook the mountainside. There was a burst of blinding flame, and then the puffball had vanished, and the too-curious warrior remained only a heap of charred and blackened bones. The crisped hand still gripped the ivory sword-hilt, but the blade was gone melted and destroyed by that awful heat. Yet men standing almost within reach of the victim had not suffered except to be dazzled and half blinded by the sudden flare.
`Steel touches it off,’ grunted Conan. `Look out – here they come!’
The slope above them was almost covered by the billowing spheres. Kerim Shah bent his bow and sent a shaft into the mass, and those touched by the arrow burst like bubbles in spurting flame. His men followed his example and for the next few minutes it was as if a thunderstorm raged on the mountain slope, with bolts of lightning striking and bursting in showers of flame. When the barrage ceased, only a few arrows were left in the quivers of the archers.
They pushed on grimly, over soil charred and blackened, where the naked rock had in places been turned to lava by the explosion of those diabolical bombs.
Now they were almost within arrow-flight of the silent tower, and they spread their line, nerves taut, ready for any horror that might descend upon them.
On the tower appeared a single figure, lifting a ten-foot bronze horn. Its strident bellow roared out across the echoing slopes, like the blare of trumpets on judgment Day. And it began to be fearfully answered. The ground trembled under the feet of the invaders, and rumblings and grindings welled up from the subterranean depths.
The Irakzai screamed, reeling like drunken men on the shuddering slope, and Conan, eyes glaring, charged recklessly up the incline, knife in hand, straight at the door that showed in the tower-wall. Above him the great horn roared and bellowed in brutish mockery. And then Kerim Shah drew a shaft to his ear and loosed.
Only a Turanian could have made that shot. The bellowing of the horn ceased suddenly, and a high, thin scream shrilled in its place. The green-robed figure on the tower staggered, clutching at the long shaft which quivered in its bosom, and then pitched across the parapet. The great horn tumbled upon the battlement and hung precariously, and another robed figure rushed to seize it, shrieking in horror. Again the Turanian bow twanged, and again it was answered by a death-howl. The second acolyte, in falling, struck the horn with his elbow and knocked it clattering over the parapet to shatter on the rocks far below.
At such headlong speed had Conan covered the ground that before the clattering echoes of that fall had died away, he was hacking at the door. Warned by his savage instinct, he gave back suddenly as a tide of molten lead splashed down from above. But the next instant he was back again, attacking the panels with redoubled fury. He was galvanized by the fact that his enemies had resorted to earthly weapons. The sorcery of the acolytes was limited. Their necromantic resources might well be exhausted.
Kerim Shah was hurrying up the slope, his hillmen behind him in a straggling crescent. They loosed as they ran, their arrows splintering against the walls or arching over the parapet.
The heavy teak portal gave way beneath the Cimmerian’s assault, and he peered inside warily, expecting anything. He was looking into a circular chamber from which a stair wound upward. On the opposite side of the chamber a door gaped open, revealing the outer slope – and the backs of half a dozen green-robed figures in full retreat.
Conan yelled, took a step into the tower, and then native caution jerked him back, just as a great block of stone fell crashing to the floor where his foot had been an instant before. Shouting to his followers, he raced around the tower.
The acolytes had evacuated their first line of defence. As Conan rounded the tower he saw their green robes twinkling up the mountain ahead of him. He gave chase, panting with earnest blood-lust, and behind him Kerim Shah and the Irakzai came pelting, the latter yelling like wolves at the flight of their enemies, their fatalism momentarily submerged by temporary triumph.
The tower stood on the lower edge of a narrow plateau whose upward slant was barely perceptible. A few hundred yards away this plateau ended abruptly in a chasm which had been invisible farther down the mountain. Into this chasm the acolytes apparently leaped without checking their speed. Their pursuers saw the green robes flutter and disappear over the edge.
A few moments later they themselves were standing on the brink of the mighty moat that cut them off from the castle of the Black Seers. It was a sheer-walled ravine that extended in either direction as far as they could see, apparently girdling the mountain, some four hundred yards in width and five hundred feet deep. And in it, from rim to rim, a strange, translucent mist sparkled and shimmered.