Blanche and her lover have to swim for it.

“Stand close against the wall, Blanche, and do not move,” commanded Evelin, as the paper torch burnt down and went out. “Now,” he continued, “I am about to light up another of these papers; and we must utilise the light to get past this gulf, if possible; it will never do for us to remain where we are. The question is—In which direction will it be most advisable for us to proceed? We must devote a moment or two to a hasty survey of the place, as far our light will allow us, before we move. Neither the time nor the light will be wasted. And it will be better that you should turn your glance upward and away from the edge of the chasm; your nerves will then be all the steadier when we have to make a move. Now, I am going to light up once more.”

Another paper was lighted; and, placing himself in front of his companion, or between her and the edge of the chasm, in order to guard against the possibility of her turning faint or giddy and falling over, Lance raised the light at arm’s-length above his head to glance round. As he did so, the tiny flame wavered, as if fanned by a faint draught. He looked at it intently for a moment, and noticed that the wavering motion was continuous, and such as would be produced by a steady current of air flowing in the direction in which they had been proceeding. Then he knelt down and held the lighted paper close against the surface of the ground. The flame burnt steadily for an instant and then betrayed a very slight draught in an opposite direction. Then it went out, the paper being all consumed.

He thought intently for a moment; then turned to his companion and said—

“Blanche, dearest, we are saved. Pluck up your courage, my own love, and thank God with me for showing us a way out of this terrible labyrinth.”

“I don’t understand you, Lance,” answered the girl, trembling with agitation; “are you only saying this to sustain my courage a little while longer, or do you really mean that you believe there is still a chance of our emerging once more into the blessed light of day?”

“I mean, dear, that I hope and believe we shall escape. Listen. That bit of lighted paper has revealed the presence of two distinct currents of air flowing along this passage. That means that an outlet to the open air exists somewhere. The upper current, which is the warmer of the two, is flowing in the direction of that outlet; and all we have to do is to follow in the same direction, if we can, and we shall eventually reach the opening.”

“Then let us proceed at once, Lance dear, please,” pleaded poor terrified Blanche. “I feel as though I should go mad if we remain here much longer. I have a frightful feeling urging me—almost beyond my powers of resistance—to fling myself forward over the edge of that dreadful chasm which is yawning to receive me. Oh! save me, Lance darling, save me for pity’s sake.”

“I will save you, dear, if it is in man’s power to do so,” answered Lance, “but you must help me by keeping up your courage; you know I cannot possibly think and reason calmly whilst you continue in this deplorable state of nervousness. Now, I will light another paper—our last—and we will move forward at once. Keep close to the wall, and be ready to give me your right hand as soon as the light shines out.”

Another moment, and a feeble glimmer once more illumined the Cimmerian darkness.