On both occasions it sounded behind him among the hills, though its tremulous faintness made it appear as though it came from far up in the air, or down deep in some of the gorges of the hills—so uncertain was the exact point of its starting.

Poor Howard was now in a dilemma. Whether to attempt to follow up the signal or to go on to the river and search out Tim O'Rooney and the Newfoundland was a question which was difficult to decide. But his eagerness to find his cousin led him on into the hills, until he had penetrated quite a distance. He then paused and listened for the signal, but none was ever to come to his ears again.

Howard repeated the whistle over and over, and finally fired his gun; but both were equally fruitless. He waited where he was until dark, when with a sad heart he withdrew and resumed his tramp toward the river. Gloomy indeed were his meditations, as he reflected on the occurrences of the day, and there was scarcely anything he would not do, if by any means he could recall his part since he landed upon the main shore.

In the course of half an hour he reached the river, and looked intently out into the semi-darkness to see whether he could recognize anything familiar; but so far as he was able to see, all was strange, from which he concluded that he had struck at a point lower down than where Tim had been left.

He therefore began making his way south, that is, toward the source of the river, after halting and listening for some sound that might tell something either of Tim or Elwood. Suddenly a threatening growl startled him, and then came the welcome bark of Terror, and the next moment the dog was frolicking around him and showing his delight in the most extravagant manner.


CHAPTER XXXVIII.

WAITING AND WATCHING.

"Worrah! worrah! but this is a fine scare you've been givin' Tim O'Rooney, so me uncle said whin they towld him his wife was coming over to Ameriky to see him. Here I've been awake fur the last two hours, jist, looking and expacting you to come back, and thinking the red colored gintleman had carried you away entirely——"

Howard impatiently interrupted him.