she struggled to free herself from the powerful clutches of the madman, she held her breath against the final moment when the asphyxiating waters must inevitably flood her lungs.
Through the frightful ordeal she maintained absolute control of her senses so that, after the first plunge, she was aware that the man was swimming with her beneath the surface. He took perhaps not more than a dozen strokes directly toward the end wall of the pool and then he arose; and once again she knew that her head was above the surface. She opened her eyes to see that they were in a corridor dimly lighted by gratings set in its roof —a winding corridor, water filled from wall to wall.
Along this the man was swimming with easy powerful strokes, at the same time holding her chin above the water. For ten minutes he swam thus without stopping and the girl heard him speak to her, though she could not understand what he said, as he evidently immediately realized, for, half floating, he shifted his hold upon her so that he could touch her nose and mouth with the fingers of one hand. She grasped what he meant and immediately took a deep breath, whereat he dove quickly beneath the surface pulling her down with him and again for a dozen strokes or more he swam thus wholly submerged.
When they again came to the surface, Bertha Kircher saw that they were in a large lagoon and that the bright stars were shining high above them, while on either hand domed and minareted buildings were silhouetted sharply against the starlit sky. Metak swam swiftly to the north side of the lagoon where, by means of a ladder, the two climbed out upon the embankment. There were others in the plaza but they paid but little if any attention to the two bedraggled figures. As Metak walked quickly across the pavement with the girl at his side, Bertha Kircher could only guess at the man's intentions. She could see no way in which to escape and so she went docilely with him, hoping against hope that some fortuitous circumstance might eventually arise that would give her the coveted chance for freedom and life.
Metak led her toward a building which, as she entered, she recognized as the same to which she and Lieutenant Smith-Oldwick had been led when they were brought into the city. There was no man sitting behind the carved desk now, but about the room were a dozen or more warriors in the tunics of the house to which they were attached, in this case white with a small lion in the form of a crest or badge upon the breast and back of each.
As Metak entered and the men recognized him they arose, and in answer to a query he put, they pointed to an arched doorway at the rear of the room. Toward this Metak led the girl, and then, as though filled with a sudden suspicion, his eyes narrowed cunningly and turning toward the soldiery he issued an order which resulted in their all preceding him through the small doorway and up a flight of stairs a short distance beyond.
The stairway and the corridor above were lighted by small flares which revealed several doors in the walls of the upper passageway. To one of these the men led the prince. Bertha Kircher saw them knock upon the door and heard a voice reply faintly through the thick door to the summons. The effect upon those about her was electrical. Instantly excitement reigned, and in response to orders from the king's son the soldiers commenced to beat heavily upon the door, to throw their bodies against it and to attempt to hew away the panels with their sabers. The girl wondered at the cause of the evident excitement of her captors.
She saw the door giving to each renewed assault, but what she did not see just before it crashed inward was the figures of the two men who alone, in all the world, might have saved her, pass between the heavy hangings in an adjoining alcove and disappear into a dark corridor.
As the door gave and the warriors rushed into the apartment followed by the prince, the latter became immediately filled with baffled rage, for the rooms were deserted except for the dead body of the owner of the palace, and the still form of the black slave, Otobu, where they lay stretched upon the floor of the alcove.
The prince rushed to the windows and looked out, but as the suite overlooked the barred den of lions from which, the prince thought, there could be no escape, his puzzlement was only increased. Though he searched about the room for some clue to the whereabouts of its former occupants he did not discover the niche behind the hangings. With the fickleness of insanity he quickly tired of the search, and, turning to the soldiers who had accompanied him from the floor below, dismissed them.
After setting up the broken door as best they could, the men left the apartment and when they were again alone Metak turned toward the girl. As he approached her, his face distorted by a hideous leer, his features worked rapidly in spasmodic twitches. The girl, who was standing at the entrance of the alcove, shrank back, her horror reflected in her face. Step by step she backed across the room, while the crouching maniac crept stealthily after her with claw-like fingers poised in anticipation of the moment they should leap forth and seize her.
As she passed the body of the Negro, her foot touched some obstacle at her side, and glancing down she saw the spear with which Otobu had been supposed to hold the prisoners. Instantly she leaned forward and snatched it from the floor with its sharp point directed at the body of the madman. The effect upon Metak was electrical. From stealthy silence he broke into harsh peals of laughter, and drawing his saber danced to and fro before the girl, but whichever way he went the point of the spear still threatened him.
Gradually the girl noticed a change in the tone of the creature's screams that was also reflected in the changing expression upon his hideous countenance. His hysterical laughter was slowly changing into cries of rage while the silly leer upon his face was supplanted by a ferocious scowl and up-curled lips, which revealed the sharpened fangs beneath.
He now ran rapidly in almost to the spear's point, only to jump away, run a few steps to one side and again attempt to make an entrance, the while he slashed and hewed at the spear with such violence that it was with difficulty the girl maintained her guard, and all the time was forced to give ground step by step. She had reached the point where she was standing squarely against the couch at the side of the room when, with an incredibly swift movement, Metak stooped and grasping a low stool hurled it directly at her head.
She raised the spear to fend off the heavy missile, but she was not entirely successful, and the impact of the blow carried her backward upon the couch, and instantly Metak was upon her.
Tarzan and Smith-Oldwick gave little thought as to what had become of the other two occupants of the room. They were gone, and so far as these two were concerned they might never return. Tarzan's one desire was to reach the street again, where, now that both of them were in some sort of disguise, they should be able to proceed with comparative safety to the palace and continue their search for the girl.
Smith-Oldwick preceded Tarzan along the corridor and as they reached the ladder he climbed aloft to remove the trap. He worked for a moment and then, turning, addressed Tarzan.
'Did we replace the cover on this trap when we came down? I don't recall that we did.'
'No,' said Tarzan, 'it was left open.'
'So I thought,' said Smith-Oldwick, 'but it's closed now and locked. I cannot move it. Possibly you can,' and he descended the ladder.
Even Tarzan's immense strength, however, had no effect other than to break one of the rungs of the ladder against which he was pushing, nearly precipitating him to the floor below. After the rung broke he rested for a moment before renewing his efforts, and as he stood with his head near the cover of the trap, he distinctly heard voices on the roof above him.
Dropping down to Oldwick's side he told him what he had heard. 'We had better find some other way out,' he said, and the two started to retrace their steps toward the alcove. Tarzan was again in the lead, and as he opened the door in the back of the niche, he was suddenly startled to hear, in tones of terror and in a woman's voice, the words: 'O God, be merciful' from just beyond the hangings.
Here was no time for cautious investigation and, not even waiting to find the aperture and part the hangings, but with one sweep of a brawny hand dragging them from their support, the ape-man leaped from the niche into the alcove.
At the sound of his entry the maniac looked up, and as he saw at first only a man in the uniform of his father's soldiers, he shrieked forth an angry order, but at the second glance, which revealed the face of the newcomer, the madman leaped from the prostrate form of his victim and, apparently forgetful of the saber which he had dropped upon the floor beside the couch as he leaped to grapple with the girl, closed with bare hands upon his antagonist, his sharp-filed teeth searching for the other's throat.
Metak, the son of Herog, was no weakling. Powerful by nature and rendered still more so in the throes of one of his maniacal fits of fury he was no mean antagonist, even for the mighty ape-man, and to this a distinct advantage for him was added by the fact that almost at the outset of their battle Tarzan, in stepping backward, struck his heel against the corpse of the man whom Smith-Oldwick had killed, and fell heavily backward to the floor with Metak upon his breast.
With the quickness of a cat the maniac made an attempt to fasten his teeth in Tarzan's jugular, but a quick
