“Well, I suppose such youngsters as you like to know.”

Then all at once he shouted out a fresh order, which was followed by the rattling out of the cable through the hawse-hole as the anchor splashed and went down to a pretty good depth before the rope was stopped, one order having acted for both vessels, and just before dark they swung round head to stream, with the water lapping loudly against their bows.

“That’s enough for one day,” grunted the captain. “Safe and snug a harbour as any one could wish to be in, and there’s the trees, you see, on both sides, good, sound, solid forest trees such as would cut up into fine timber, and all the mangroves left far enough behind.”

In a remarkably short time, as the two lads stood watching the shores, the forest on either side grew intensely black, and though the steward announced that the evening meal was ready, no one seemed disposed to go below, for, succeeding to the solemn evening silence, they seemed to be surrounded by strange sounds from the depths of the forest as well as from the river, whose current began to grow sluggish, suggesting that before long the tide would be at its height, and ready to turn with the rushing of the water outward to the sea.

“Why, it’s awful,” said Morny, in a subdued tone, as he stood with Rodd gazing at the nearest shore.

“Yes, not very nice,” replied Rodd. “You and your father had better stop on board here to-night.”

“Oh no. Our boat is hanging astern. We shall go back.”

Rodd thought that he should not like to attempt to row from vessel to vessel in the darkness of such a night, for something seemed to suggest to him the possibility of being swept out to sea; but he did not say so, for fear of making his companion nervous, and they stood listening and whispering together, trying to give names to some of the uncouth noises which floated to their ears.

Many were sharp quick splashes as if some great fish had sprung out of the water in pursuit of prey, or in a desperate effort to escape a pursuer. Then every now and then there would be a resounding slap, as if one of the great reptiles that haunted the river had struck the surface a tremendous blow with its tail.

“What’s that?” asked Rodd, directly after, as a low, deep, mournful sound came from amongst the trees upon the shore, sounding like a piteous cry for help from some woman in distress.