Beside them was another door opening into a passageway that led to the throne room, avoiding the ptomes' room. Herkuf tried to open it, but could not. He shrugged. There was nothing to do now but make the attempt to pass through the room where the ptomes should be sleeping. They prayed that they were sleeping. Cautiously, Herkuf opened the door to that room and looked in; then he beckoned Tarzan to follow him.
The entire success of their venture depended upon their reaching the throne room unchallenged. They had almost succeeded, when a ptome, awakening, sat up and looked at them. With their fish upon their tridents, the two men continued on unconcernedly across the room. The sleepy ptome, scarce awake, thought them two of his own kind, and lay down to sleep again. Thus they came in safety to the throne room, while outside, Helen waited in the loneliness of the black water. She was almost happy, so certain was she that Tarzan and Herkuf would succeed in liberating d'Arnot, Brian, and Lavac; but then she was not aware of the figure in a white water suit that was swimming down toward her from above and behind. Whatever it was, it was evident that it had discovered her and was swimming directly toward her.
Tarzan and Herkuf hurried directly to the cages, tossing their fish to the floor. The excited prisoners watched them, for they had never seen ptomes behave like this. Only d'Arnot really guessed who they were. Seizing the bars in his powerful grasp, Tarzan released them one after the other, cautioning them to silence with a gesture; then he removed his helmet and told d'Arnot, Brian, and Lavac to put on the three water suits that Herkuf carried.
"The rest of you," he said, "may be able to escape by the secret passage at the end of the long corridor. Does any of you know where to find it and open it?"
"I do," replied Akamen.
"So do I," said Atan Thome. "I learned from Akamen." As he spoke he darted toward the altar and seized the casket containing The Father of Diamonds, the accursed casket that had wrought such havoc.
As Helen felt a hand seize her from behind, she turned to see the strange figure in white confronting her; and her vision of a successful termination of their venture faded. Once again she was plunged into the depths of despair. She tried to wrench herself free from the restraining hand, but she was helpless to escape. She realized that she must not be taken now, for it might jeopardize the lives and liberty of all her companions; she knew that they would search for her and that the delay might prove fatal to them. A sudden rage seized her; and, wheeling, she tried to drive her trident into the heart of her captor. But the creature that held her was alert and powerful. It wrenched the trident from her hands and cast it aside; then it seized her by a wrist and swam up with her toward the surface of the lake. The girl still struggled, but she was helpless. To what new and unpredictable fate was she being dragged? Who, now, might find or save her?
In the throne room of the temple, Tarzan and Herkuf saw all their efforts, their risks, and their plans being brought to nothing by the stupid avarice of three men, for as Atan Thome had seized the casket, Lal Taask and Brian Gregory had leaped upon him; and the three were fighting for the vast treasure for which they had risked their lives. At sight of the casket in the hands of another, Brian had forgotten all his fine resolutions; and cupidity dominated him to the exclusion of all else.
Tarzan ran forward to quiet them, but they thought that he too wanted the casket; so they fought down the throne room in an effort to evade him; and then that happened which Tarzan had feared—a door burst open and a horde of ptomes poured into the throne room. They wore no encumbering water suits or helmets, but they carried tridents and knives. Tarzan, Herkuf, and the liberated prisoners waited to receive them. Brian and Lal Taask, realizing that here was a matter of life and death, abandoned the casket temporarily to assist in the attempt to repulse the ptomes; but Atan Thome clung desperately to his treasure, and sneaking stealthily behind the others he made for the corridor at the far end of which was the entrance to the secret passageway that led to the rocky hillside above Ashair.
It devolved upon Tarzan to bear the brunt of the battle with the ptomes. Beside him, only Herkuf was armed; and the others fought with their bare hands but with such desperation that the ptomes fell back, while Tarzan speared them on his trident and tossed them among their fellows.
It was upon this scene that Brulor burst, red of face and trembling with rage; then above the yells and curses of the battling men there rose his screaming voice as he stood behind the empty altar.
"Curses!" he cried. "Curses upon the profaners of the temple! Death to them! Death to him who hath raped the casket of The Father of Diamonds! Summon the warriors of Ashair to avenge the sacrilege!"
Herkuf saw his Nemesis standing defenseless before him, and he saw red with the pent up hatred of many years. He leaped to the dais, and Brulor backed away, screaming for help; but the ptomes who remained alive were too busily engaged now, for all the prisoners who remained had armed themselves with the tridents and knives of the ptomes who had fallen.
"Die, imposter!" screamed Herkuf. "For years I have lived in the hope of this moment. Let the warriors of Ashair come, for now I may die happy. The true god shall be avenged and the wrong you did me wiped out in your blood."
Brulor dropped to his knees and begged for mercy; but there was no mercy in the heart of Herkuf, as he raised his trident and drove it with both hands deep into the heart of the terrified man grovelling before him. Thus died Brulor, the false god.
A breathless ptome had staggered into the presence of Atka, who sat among her nobles at a great banquet. "What is the meaning of this?" demanded the Queen.
"Oh, Atka," cried the lesser priest. "The prisoners have been liberated and they are killing the ptomes. Send many warriors at once or they will all be slain."
Atka could not conceive of such a thing transpiring in the throne room of the temple of Brulor , yet she realized that the man was in earnest; so she gave orders that warriors were to be sent at once to quell the disturbance.
"They will soon bring order," she said, and returned to her feasting.
When the last ptome had fallen, Tarzan saw that Aka-men was dead and that Taask and Thorne had disappeared with the casket. "Let them go," he said. "The Father of Diamonds is bad luck."
"Not I," said Brian. "I shan't let them go. Why do you suppose I have suffered in this hell-hole? Now I have a chance to reap my reward; and when others steal it, you say, 'let them go.'"
Tarzan shrugged. "Do as you please," he said; then he turned to the others. "Come, we must get out of here before they get a chance to send a lot of warriors down on top of us."
All four were now in their water suits, and were adjusting their helmets as they made their way toward the corridor that led to the water chamber. Brian had reached the end of the throne room. He was the first to realize that the warriors of Ashair were already upon them. Throwing himself to the floor, he feigned death as the warriors rushed past him into the throne room.
When the others saw them, they thought that they were lost; but Herkuf motioned them to follow him, as he hurried on toward the air chamber. Tarzan had no idea what Herkuf planned to do. He only knew that there would not be time to pass through the air chamber before the warriors reached it and reversed the valves; then they would be caught like rats in a trap. He had no intention of inviting any such situation. He would turn his back to the wall and fight. Maybe he could delay the warriors long enough for the others to escape. That was what he thought; so he turned at the doorway leading from the throne room, and took his stand. The others, glancing back, saw what he was doing. D'Arnot took his place beside him, ignoring the ape-man's attempt to motion him on. Herkuf ran rapidly toward the air chamber. Lavac could have followed him to safety, but instead he took Ms stand beside d'Arnot in the face of certain death.