Therefore, to keep the people from sacrificing blood, to show them that you are mortal and the Heads powerless to save the demons they have raised, you must be slain in front of the great palace.

"Yes; you, too, must die for the people!"

Bound and helpless, lying on their backs and staring into the gloom of the small chamber into which they had been thrown, Miles and Ward had time to ponder their desperate situation. Spiro was delaying their death until the workers of Apex would have time to gather and witness it. At first they had struggled to loosen their bonds, but such efforts served only to tighten them. Then they had tried the trick of rolling together so that the fingers of one might endeavor to undo the knots securing the other. On a memorable occasion in Turkey they had freed themselves in this manner. But the attempts proved fruitless now. The floor of the chamber was smooth, nor could they find any rough projection on which to saw the cords.

Exhausted, they finally desisted. The same thought was in both minds: Were they doomed to die in this strange world, fated never to see Earth again? Well, a soldier of fortune must expect to meet with reverses. Still, it was a tough break. After a long silence Ward said, "How were we to know that the heads lived on the blood of the people?"

"Would it have made any difference if we had known?" asked Miles.

"Perhaps not." Ward tried to shrug his shoulders. "After all, we have fought to maintain systems not much better. There is little difference, save in degree, between draining the life-blood of a race and robbing it of the fruits of its labor."

"But sometimes we fought to liberate people," protested Miles.

"Yes, I like to think of that. It's good to have something to our credit when we cash in. And it looks," he said pessimistically, "as if our time to do so has come."

They ceased talking. Time pa.s.sed cheerlessly. Finally both of them fell into a heavy slumber from which they were aroused by the sudden flashing in their eyes of a bright light, bright only in comparison with the former intense darkness. "What's that!" cried Ward, startled.

"S-sh," said a soft voice warningly, and when their eyes became accustomed to the illumination, they were amazed to perceive the slender form of a young girl carrying a torch. She was marvelously lovely to look at, with her blue-black hair brushed straight back from a low, broad forehead and her smooth skin as dark as that of an Egyptian. Nor was she dressed unlike pictures Miles had seen of people of ancient Egypt. The embroidered plates covering the small b.r.e.a.s.t.s shone and glittered; bracelets and bangles flashed on bare arms and shapely ankles; while from the waist to below the knees was a skirt of rich material. On the small feet were sandals of intricate design.

Besides the torch, the girl carried a slim, gleaming knife, and for a moment the adventurers were guilty of imagining she had come to slay them where they lay. But her manner quickly dispelled their fear.

Sinking on her knees beside them, she said, "Do not be afraid; Ah-eeda will not harm you."

So this was Ah-eeda, the girl of whom Spiro had spoken. Miles and Ward devoured her loveliness with their eyes; her coming flooded their bosoms with renewed hope. She continued speaking. Her English was not at all fluent, and she was often compelled to make it clear with expressions in her own tongue and with explanatory gestures. But to Miles and Ward, who knew nothing of temple training, her speaking English at all was a miracle.

"Is it true that you are men from another world?"

"Yes."

"And you came to make the people give their blood to the Heads?"

"No, that is not true. We were in ignorance of what it was we fought for. Had we known the truth we would have refused to fight for the Heads."

"Then, if I were to set you free, you would go back to your own world and not fight my people any more?"

They nodded vigorously.

"Oh, I am so glad," exclaimed the girl; "I did not want to see you die!" She looked at Miles as she spoke. "I saw you before Spiro this afternoon. Poor Spiro!" she murmured as she cut their bonds. It was some time before circulation was restored to their limbs. Miles asked anxiously, "How many guards are there at the door?"

"Twelve," said the girl; "but they are playing wong-wo in the room outside and drinking soola." She pantomimed her meaning. "I came here through a secret pa.s.sage beyond," she indicated by a wave of her hand.

"Now that you can walk, let us hurry." Shyly she took Miles' hand. The warm clasp of her fingers made the blood course faster in his veins.

Through a long pa.s.sage they glided to another room. There were several confusing turns and dark hallways, and twice they had to cower in shadowy corners while Ah-eeda boldly advanced and held converse with occasional persons encountered, though for the most part the way was silent and deserted. At last they came to a low door opening on a narrow street and the girl put out her torch.

"To return to our own world we must first reach the Palace of the Heads," said Ward. The girl nodded. "I will guide you there. But we must hurry: the workers will soon be gathered."

Never were Miles and Ward to forget that breathless flight. The girl led them through narrow and devious byways over which dark buildings leaned, evidently avoiding the more direct and open thoroughfares. It seemed as if they were to escape without hindrance when, suddenly, out of a dimly lighted doorway, lurched the gigantic figure of a green man carrying a flare. This flare threw the figures of the fugitives into relief.

"Ho!" roared the green man, and came at them like a furious bull. It seemed characteristic of his kind to attack without parley. The torch dropped as he came. There was no resisting that mighty bulk. Unarmed, and with scant room to move backward, the two Americans went down; and that would have been the end of the battle if Ah-eeda, who had shrunk to one side out of the way of the combatants, had not s.n.a.t.c.hed up the still flaming torch and held it against the naked back of the greenish giant. With a scream of anguish the latter ceased throttling the Americans, clapped his hands to his scorched back and rolled clear of them.

Instantly they staggered to their feet and fled down the roadway after the light-footed Ah-eeda. Behind them the screams of the green man made the night hideous. "d.a.m.n him!" panted Ward; "he'll have the whole town on our heels!" Providentially, at that moment the road debouched into the great square. This they crossed at a run, and so, for the last time, entered the Palace of the Heads. Its wide halls and chambers were practically deserted.

Past the crystal chamber where they had first materialized into this strange world they dashed, and through the far door and down the corridor to the blank wall. Already in the rear could be heard the sound of pursuit, the rising clamor of the mob. Ward hammered on the wall with both fists. "Zoro! Zoro! let us in!" Now the first of the mob had entered the corridor. "Zoro! Zoro!" Noiselessly, and just in time, the wall parted and they sprang through, Miles half carrying the slender form of Ah-eeda. The wall closed behind them, obliterating the fierce cries and footbeats of their pursuers.

In front of them was Zoro, his hairless head projecting from the tubular container. Ah-eeda shrank fearfully into Miles' embrace. All the other Heads were ranged back of Zoro, but there was something odd about them. The ma.s.sive craniums lolled loosely to one side or another and the curiously colored eyes were glazed or filmed. Zoro held his head erect, but only with an effort, and his features were drawn and ghastly looking.

"Yes," he said in a feeble voice, "the Heads are dying. You need not tell me that you have failed. In the end force always fails. No longer will the veins of the people yield their blood to us, and without their blood we cannot live. Soon three hundred thousand years of intelligence will be no more." His voice faltered.

Miles and Ward had learned to feel nothing but horror and detestation of the Heads, but now in the face of their tragic end, hearing the dying words of Zoro, awe and sympathy struggled with other emotions in their hearts. These mighty intellects had lived before the days of the flood; their eyes filming now in death had seen the ancient empires of Earth rise and fall.... Sumeria, Babylon.... Stupendous thought; and yet in the face of death a hundred thousand years of life was of no more importance than that of a day. Suddenly Ward sprang forward and shook the fainting Head. "Zoro! Zoro! what of us? We served you faithfully and would now return to Earth."

Visibly Zoro made a great effort to reply. "Go to the crystal tube in the laboratory beyond," he said at last. "It still works. I have told you how to run the car. Mend the tracks. The locks open automatically and let the car into the ocean when it strikes the switch. Your reward is in...." The words died away. Then, with a sudden influx of strength, the hairless head straightened, the strangely colored eyes cleared, and in a loud voice Zoro called out something in an unknown tongue and then collapsed.

Out of that chamber of death the Americans fled, suddenly afraid of its weird occupants. In time the workers of Apex would break into that strange laboratory and find the vampires of the ages dead. And in a very short time Spiro himself would die--Spiro the avenger.

At the crystal tube Miles paused. "Ah-eeda," he said softly, "we return to Earth, but I shall never forget you, never!"

A moment he hesitated, and then bent and kissed her swiftly. Instantly she was in his arms, clinging to him pa.s.sionately.

"I too," she cried; "I too!"

"She means," said Ward, "that she wants to go back with us. What do you say?"

"G.o.d knows I am tempted to take her," said Miles; "but would it be right? What does she know of Earth?"

"Nothing," said Ward; "but I believe she loves you. And have you thought that after helping us to escape she may not be safe among her own people?"

Miles bowed his head. "Very well," he said; "so be it. I swear to make her happy."

So there were three of them who entered the crystal tube.