There was a sudden, swift break in the voice that soared upward to the pitying heavens—his strength had not given out, but something wonderful had happened.
From over their heads, and seeming to come through the small pipe provided to ventilate their darksome prison, had come the distinct sound of a human voice.
"Halloo!"
[CHAPTER XXIII.]
In almost the last hour, when hope had deserted them, and they hourly expected death, succor had arrived. Van Zandt's singing had attracted attention at last, and now help was at hand.
When that ringing halloo came down the ventilating pipe, he almost swooned with the suddenness of his joy and relief; and it was Marie, who, with a sudden accession of frantic joy, screamed shrilly back:
"Halloo!"
A voice came quickly back—a familiar voice: