Dan taking out a keen bowie-knife. “But he won’t. He’ll lie down below there among the roots for hours, I daresay. If he did come up of course we should give him a shot.”

“Ugh!” said Brace, shuddering. “But what are we going to do?”

“Push on up the creek,” said his brother. “We may come to an open part. Go on, my lads.”

The man with the boat-hook went on catching the boughs and drawing the boat along, and twice over a splash and the following movement of the water amongst the mossy, muddy tree-trunks told of the presence of some loathsome reptile; but the men sat fast, gazing stolidly to right and left in search of danger, and more than once Brace gave a glance at his double gun as if to see that it was cocked and ready.

The sensation was not pleasant, and it attacked everyone in the boat. The American might be right, they thought, and the serpent remain startled and quiescent down in the depths of the muddy water, but still they felt the possibility of that terrible head darting out at a victim, and a low sigh of relief rose again and again as the distance from where the serpent fell increased.

It was plain enough now that they were in a winding creek whose sides were dense with trunks and branches forming an impenetrable barrier had there been the slightest inclination to land; but all thought of this passed away almost from the beginning. In fact, it was perfectly clear that the only way to penetrate the forest was to go up some waterway such as the one they were in, and this they followed slowly for a few hundred yards, the man with the boat-hook cleverly guiding the vessel in and out amongst the many obstacles, till the place grew darker and darker through the density of the foliage overhead.

The creek was for the most part painfully still—painfully, for the weird gloom raised up the idea that thousands of eyes were watching their movements, and that at any moment some terrible attack might be made.

That they were surrounded by living creatures they had ample proof given them by strange rustlings among the branches overhead, and sometimes by a sudden hasty rush which, as Briscoe said, might be anything.

“What do you mean by anything?” said Brace, in a low voice.