Having risen to a height of about three hundred feet, he found that he commanded a view of many miles of the country. Far to the south were the mountains; all around was forest, broken here and there by patches of open rocky ground. Beneath him the trees were so densely packed that a whole army might have been encamped among them without giving a sign of its presence. He sped in a straight line west-north-west of the fort, at a speed of between forty and fifty miles an hour; to go faster would have rendered careful exploration of the country difficult. Having completed ten miles without passing over a single spot of clear ground, he flew about five miles due west, then turned the machine and steered back towards the fort along the next imaginary radius of his circle. He had arranged that Rodier should scan the country to the left while he himself kept as good a look-out to the right as was possible when he had engine and compass to attend to. They had not flown far on this backward journey when Rodier, who was using his binocular, shouted that he saw, on a headland far to the left, what appeared to be a native village. Smith instantly steered towards it. It was the first evidence of human habitation they had as yet come across, and even at the risk of losing his bearings he must examine it. He could now afford to go at full speed, and a few minutes brought him above the village, which was a collection of rude huts perched on a steep headland overlooking the sea, and defended on its inland and less precipitous side by barriers of stakes. The noise made by the engine as the aeroplane swept down towards the village first drew all the inhabitants from their huts into the open enclosure, and then sent them scampering back with shrieks of alarm as they saw the strange object in the air. A glance sufficed to assure Smith, as he wheeled round the village, that it contained no white men, unless they had been taken inside the huts, which was unlikely. Without loss of time he steered as nearly as he could towards the point at which he had diverged from his settled course, and returned to the camp, pausing once to examine a small tract where the trees were somewhat thinner, allowing him to see the ground beneath.

Once more he started, steering now in a more westerly direction. There were several clear spaces along this radius, and Smith flew over them slowly, more than once wheeling about to make sure that his eyes had missed nothing. But at these times he saw no human beings, nothing but the wild animals of the forest, huge pigs being diminished to the size of rabbits, and dingoes to the size of mice. These scurried away when they heard the noise of the engine, and Smith hovered around for a time to see if the flight of the animals attracted the attention of men, but in vain.

Having again covered ten miles, as nearly as he could judge, he swung round to the southwest. A minute or two later he came to the largest open space he had yet seen, clear of undergrowth as well as of trees. There were no huts upon it, and at first he saw no sign of men; but all at once Rodier cried that there was a ladder against one of the trees on the farther side of the clearing. Flying towards it, and descending until the aeroplane was level with the tree-top, Smith was amazed to see a brown woman, with a brown baby under her arm, scuttling down the ladder towards the ground. At the same time he became aware that there were ladders against many of the trees in the neighbourhood, and women and children were descending by them, showing all the marks of terror. He had come upon a collection of the curious tree-houses, sixty or seventy feet from the ground, which some of the islanders inhabit. The terrified people when they reached the ground fled into the forest. There was no man among them, which led Smith to suspect that the men were either hunting for food, or were perhaps fighting with the castaways. Instead of returning directly to the camp, therefore, he pursued his flight across the forest in the same direction in which the startled natives had run. Now for the first time he wished that he could have had a silent engine, for then his ears might have given the information which failed his eyes. Though he flew to and fro for some time in the vicinity of the tree-houses, he discovered no other break in the forest; and the impossibility of knowing what was going on beneath that vast screen of foliage began to affect him with hopelessness of success.

He wished it were possible to descend in the clearing, and continue his search on the ground. The appearance of the aeroplane was so terrifying to the islanders that he need fear no opposition to his landing. But the idea occurred to him only to be at once dismissed. When once among the trees, away from the aeroplane, he would be no longer sacrosanct. Those islanders who had actually witnessed his descent might fear him as a denizen of the sky; but any others that met him in the forest would not be restrained by superstitious fear from, treating him as an enemy. Further, having once involved himself in the obscure and pathless depths of the forest, he might wander for hours, or even days, without finding the aeroplane. It was an impossible course of action. Hopeless as he was becoming, he felt that he could do nothing better than persevere as he had begun; after all, he had as yet covered only a small wedge of the segment he had proposed to himself.

But he now found himself in a difficulty. In the excitement of his recent discovery he had neglected to keep a watch upon the compass, and he was now at a loss to know the precise direction in which to steer. He must certainly go to the east, but he could not tell whether he was north or south of the camp. It occurred to him that by rising to a greater height he might probably be able to descry the camp, so he planed upwards until he attained an altitude of nearly two thousand feet, Rodier searching the country seawards through his binocular.

"I see it!" he cried at length, adding, as Smith began to steer towards it, "Wait a minute, mister; I see all the country better here; I can pick out the clearings, though they are only dark blots; but yet I can do it."

He swept the country for miles around. Beyond the forest, far to the west, there were stretches of rugged uplands, bare of vegetation. It was not at all likely that the Englishmen had gone so far from their camp, whether willingly or unwillingly. To the east and south-east stretched the sea, and Rodier declared that he saw, an immense way off, the smoke of a steamer, no doubt the gunboat. Lowering the glass to scan the nearer prospect, he suddenly gave a lusty shout.

"I see smoke, mister; a quite little smoke, as of a cigarette."

"Where?" asked Smith eagerly.

"South-east of us, in the forest, about five or six miles off."