A terrible punishment indeed for the white man that had dared to defy the king of the Murhapas, and had been the cause of the death of the beloved princess!
Ashman was still studying the insoluble problem, when a strange impulse led him to look aloft. It will be remembered that he was near the roof of the cavern, among a mass of bowlders and rocks which touched the dome.
Several times it had seemed to him that a felt a slight, upward draught, as though a portion of the air found vent in that direction. When he mentioned it to Ariel she admitted that she had noticed the same thing, and urged him to investigate.
Leaving his Winchester with her, he began a cautious ascent of the rugged stairs. He had about twenty feet to climb, and the greatest care was necessary. Not until at the very top, did he pass from the sight of the maiden who was attentively watching his movements.
Five minutes later, he let go his hold and dropped, down beside her. His face was flushed and his eyes glowing with excitement.
"Thank heaven!" he exclaimed, greatly agitated; "there is an opening by which we can reach the outer world."
"I was sure of it," she replied with a happy smile.
During his brief absence, she had bandaged her arm as best she could by tearing a slip from her dress. The wound bled less than would be supposed, and caused her little pain.
Taking her other hand, Ashman began helping her up among the rocks and bowlders. She needed little aid, however, for she was lighter and more graceful on her feet than he.
Sure enough, when they arrived at the top, they came upon a broader opening than that by which they had entered the cavern. It was hidden from sight by a projecting table of rock, and when they came to pass through, the outer opening was seen to be so covered by bushes that it never could have been found except by the accident which first showed Ariel the way into the cavern.