"Let us suppose then that they are here, sir," said Jim thoughtfully, as he cut his engine down till it did little more than just turn round. "What is the next movement? To try and find them in that lagoon would be to set oneself the task of discovering a needle in a haystack. There is no chance, even with a bright moon, unless they happened to steam out into the centre. It seems to me that for to-night at least we have come to the end of our efforts." "Quite so; I agree. We'll haul in somewhere and tie up. We shall all be glad of food and drink. Now, where is a likely place?" "Right here, I should say," declared Jim briskly. "In the first place, we're in a sort of tunnel, which, therefore, is not easy to discover. Then we lie right in the track those men would take if they were making out to sea. In fact, it's a blockade; we've bottled them so long as we occupy this channel." It was not a matter which admitted of discussion, seeing that the suggestion was so full of common sense. The Major swiftly realized that fact, and promptly agreed to act upon it. "Couldn't do better," he said. "Now, see here, boys, we've got to take some precautions. In the first place, we want food cooked, and that means lighting a fire; for no cooking can be done aboard this craft. It wouldn't be safe with our tanks filled with gasolene. Suppose we pitch our camp right away in amongst the trees, where a fire couldn't be easily seen; then we'll tie the launch up right across the stream. She'll reach from bank to bank easily. A man can keep watch aboard her while the rest of the party turn in; how's that, Jim?" "The very thing, I guess. Say, Major, I'm real hungry; don't mind how soon I sit down to a feed. See here, Ching; jest you and Tom collect those kettles and things, and take off into the trees. Sam, get along with them, and make sure you've chosen a spot where there's plenty of thick stuff about. Supposing we walk along to the edge of the lagoon, Major. By the time we've had a good look round they'll have the boat moored in position and the fire going. There's just a chance that we might have the luck to catch a sight of those two slippery fellows. It's almost as light as day out there, and they might be still moving." Swinging themselves ashore the two made their way along the edge of the stream slowly and carefully. Indeed, a good deal of care and of agility was required, for the bank was lined by a tangled mass of vegetation which often enough obstructed their path; but as both had encountered the same before, they had brought with them long cutting knives with which to sever the creepers. Underfoot they found the ground firm and even stony in places, while to their right the land seemed to rise abruptly. As to the lagoon, when once they were free of the long, tunnel-like archway of trees leading to the sea, they came into uninterrupted view of the huge expanse of water, for the moon was now well up, and flooded the scene.