He stepped out and was gone.
The girl made a quick movement, but Thordred lifted his huge hand in warning.
'Wait!' he whispered.
They waited, while the minutes dragged past. At last Thordred arose and went to the laboratory door. He fumbled over the wall, and abruptly the flickering veil of light died. The giant's face twisted in a contemptuous grin.
'Ardath is a fool,' he rumbled. 'Else he would never have left his laboratory unguarded, even though he does not realize that I know the secret of his brain.'
'But do you?' Jansaiya asked. She stood behind the giant, peering over his shoulder into the laboratory. 'You know nothing of his thoughts since you drew the knowledge from his mind, and that was ages ago.'
'I know enough!' Thordred retorted, eyeing the apparatus wolfishly. 'Enough to handle his weapons, once I get my hands on them. We shall follow Ardath now and slay him. Then this new world will be ready for conquests.'
'I am- afraid,' the girl complained. 'Do not try to kill Ardath. Sometimes I see that in his eyes which makes me tremble. He is not Earth-born. Let us flee, instead, to where he can never find us.'
'While he lives, we are not safe,' Thordred growled. 'Come!'
He sprang across the threshold—and was flung back! A wall of flaming blue light reared viciously before him. Crackling, humming, blazing with azure fury, the strange veil rippled weirdly. Sick with amazement and baffled rage, Thordred drew back, a stinging pain in his arm and his side. Jansaiya cried out and fled into a corner.
'He—he watches us!' the girl whimpered. 'I did not think
so, but now I know he is a demon!'
Thordred was ashly-gray under his brown, hairy skin. His jaw muscles bunched. Like a beast he crouched, great hands shaking, as he glared at the ominous portal.
'Quiet! He does not watch. Ardath is clever, that is all.'
'I do not understand—'
'One lock on a door is good, but two are better. Ardath had put two locks on this one.' Thordred growled deep in his throat. 'Does he suspect me? If he does—' He shook his shaggy head. 'No, it is a precaution anyone might take. Let me see.'
Thordred approached and gingerly tested the blue wall of light. It was as solid and resistant as metal.
'It is a new thing. I know many of Ardath's secrets, though not this one. Perhaps I can learn how to destroy this barrier before he returns.'
Jansaiya began trembling with a new fear.
'If you do not, he may destroy us. Hurry, Thordred!'
'There is no need for haste. Let me see…'
The giant began testing the wall beside the door. Under his beetling brows, the amber cat's-eyes glowed as he worked. Presently sweat began to trickle down the swarthy face and run into the black beard. Could he find the secret of the barrier before Ardath returned?
Meanwhile, Ardath walked swiftly through the forest, his thoughts busy. The Kyrian had already forgotten Thordred and Jansaiya. He was pondering the mystery of the savage chief Dro-Ghir, whose actions were those of a genius, but who certainly did not resemble one in any way.
In a far later age, Genghis Khan and Attila the Hun would ravage the Earth as Dro-Ghir did now. Centuries later, the walled cities of China would again fall victim to the invader, as they had fallen before Dro-Ghir. Out of the Northern steppes the hordes of this scourge had come, huge hairy men on horseback. Their villages were crude collections of dome-shaped huts—yurts, they were called.
Eastward the ravagers had swept, and down the bleak coasts into Oriental lands. Westward they had been halted, for a time, by the vast mountain range that towered to the skies. In the South they had swarmed into a land of green, lush jungle and carved stone temples, where men worshiped Siva and Kali the Many-armed.
Like an avalanche, the hoofs of the invaders thundered across the Earth.
'Slay!' they shouted.
Their curved swords glittered. Their horse-tail standards shook in the chill winds that followed them from the North. Their spears drank deep, lifted, dripping red! Great beast-faced giants who rode like centaurs and fought like devils, they bathed the East in rivers of blood.
Slay! Show no mercy. Prisoners mutter and revolt, therefore take no prisoners. Only slay!
Over these barbarians Dro-Ghir ruled.
Ardath's vision screen had showed him that Dro-Ghir camped with a group of his men, not far away. But night had fallen before he reached the outposts and was accosted by a wary sentry.
In the moonlight, the guard's face was like that of a gargoyle. He lifted his spear—and held k rigid as Ardath's gaze met and locked with his. A silent conflict flared without words or actions between the two men.
As the stronger will mastered, the sentry turned and led the Kyrian into the midst of a group of goat-skin tents. Before the largest he paused. A few soldiers were sitting here and there by their fires. They looked up curiously, but none offered to interfere.
The sentry lifted the tent-flap and Ardath entered. He felt an involuntary tension as he faced the baffling Dro-Ghir.
A few small lamps of pottery, with wicks protruding from reeking animal-oil, cast a flickering yellowish gleam on the tent walls. There were some beast-skins scattered around haphazardly, but nothing more. A man reclined at length on a greasy fur, and he looked up sharply as the intruder entered.
Dro-Ghir was a giant as huge as Thordred. He wore nothing but a loose robe, which left his shaggy breast bare. His thick black beard was shiny with oil. His long, thick mustache had been twisted into two short braids and tied with golden wire. A fur cap covered his head. His face was that of a blindly ferocious beast. The low brow slanted back. The thick lips 'revealed yellow, broken tusks. In the shallow eyes was little sign of intelligence.
Ardath frowned in wonder. Was this the genius he sought?
CHAPTER IX
Li Yang
Dro-Ghir surged up in one swift motion. His hand brought out a short throwing-spear, which he leveled at Ardath.
'Li Yang!' he roared. 'Come here!'
Ardath had already taken pains to learn the language of the barbarian hordes.
'I mean no harm,' he began. 'I merely—'
'Peace, Lord,' a new voice broke in. 'He comes unarmed. Wait!'
Someone was crouching in the shadows. Ardath peered intently into the darkness. He saw a gross lump of a man, an absurdly fat Oriental who sat cross-legged in the gloom. Sharp black eyes, almost hidden in the sagging pads of the bland round face, stared back at Ardath. The tiny, red lips were childlike, and the domelike skull was bald and shining. Li Yang wore a loose robe, girt about his bulging waist by a golden cord.
Dro-Ghir had also swiveled to peer at the Oriental.
'Hear his words,' Li Yang counseled, and picked up a lutelike instrument at his side. Idly he strummed the strings as he gave his advice. 'There is no harm in words.'
But Dro-Ghir did not release his grip on the spear. He stood with legs wide apart, watching Ardath.
'Well?' he demanded.
The Kyrian spread his hands in appeal.
'I come in peace.'
'How did you get through the lines?'
'That does not matter. I have a message for you.'
Dro-Ghir growled a savage threat deep in his throat.
'Let him speak, Lord,' Li Yang whispered. Then speak—but swiftly!'
Swiftly Ardath told his story. He was still puzzled, and he grew more bewildered as he searched the dull,
