"Now their tas-ad has reached a high plane among them. They make many wonderful things that we cannot make. They think great thoughts, no doubt, and still dream of greatness to come, but their thoughts and their acts are regulated by ages of custom--they are all alike--and they are most unhappy." As the girl talked, the two moved steadily along the dark passageway beside the river. They had advanced a considerable distance when there sounded faintly from far ahead the muffled roar of falling water, which increased in volume as they moved forward until at last it filled the corridor with a deafening sound. Then the corridor ended in a blank wall; but in a niche to the right was a ladder leading aloft, and to the left was a door opening onto the river. Bradley tried the latter first and as he opened it, felt a heavy spray against his face. The little shelf outside the doorway was wet and slippery, the roaring of the water tremendous. There could be but one explanation--they had reached a waterfall in the river, and if the corridor actually terminated here, their escape was effectually cut off, since it was quite evidently impossible to follow the bed of the river and ascend the falls. As the ladder was the only alternative, the two turned toward it and, the man first, began the ascent, which was through a well similar to that which had led him to the upper floors of the temple. As he climbed, Bradley felt for openings in the sides of the shaft; but he discovered none below fifty feet. The first he came to was ajar, letting a faint light into the well. As he paused, the girl climbed to his side, and together they looked through the crack into a low-ceiled chamber in which were several Galu women and an equal number of hideous little replicas of the full-grown Wieroos with which Bradley was not quite familiar. He could feel the body of the girl pressed close to his tremble as her eyes rested upon the inmates of the room, and involuntarily his arm encircled her shoulders as though to protect her from some danger which he sensed without recognizing. "Poor things," she whispered. "This is their horrible fate--to be imprisoned here beneath the surface of the city with their hideous offspring whom they hate as they hate their fathers. A Wieroo keeps his children thus hidden until they are full-grown lest they be murdered by their fellows. The lower rooms of the city are filled with many such as these." Several feet above was a second door beyond which they found a small room stored with food in wooden vessels. A grated window in one wall opened above an alley, and through it they could see that they were just below the roof of the building. Darkness was coming, and at Bradley's suggestion they decided to remain hidden here until after dark and then to ascend to the roof and reconnoiter.