At last he reached the bicycle. There was no sleeper within a few yards of it. He passed his hand over it rapidly to make sure that it was complete. Then, bracing himself for the ordeal, he wheeled it between several of the men towards the centre of the courtyard. At this tense moment he had reason to be glad of the care which he had always spent in keeping the machine well oiled. This, and the fact that it was a free-engine model, made it noiseless.

Looking now eastward, he was just able to discern the two pillars of rock that stood high above the level of the adjacent wall at the entrance. Guided by them, he pushed the machine straight across the courtyard, skirting one of the dead fires. He passed between the rocks: he was now on the track: and the heedless sentry slumbered on.

Tim was breathing hard in his excitement. The first danger was past: what was he now to do? He stood beneath one of the tall rocks, thinking. Should he try to creep past the outpost stationed, as he suspected, at the foot of this, the steepest part of the track? Or should he mount and run the gauntlet? The men were probably not asleep: whether awake or not they would hear his machine approaching. It seemed perhaps the safer course to wheel the bicycle down at the side of the track, and not mount until he was within a few yards of them, when he might hope to dash past before they were ready to deal with him.

He was moving slowly downhill when an accident caused a change of plan. A loose piece of rock, displaced by the front wheel, bumped and rattled down the track, making what seemed a terribly loud noise in the still night air. The slumbering sentry awoke and let out a shout. There were faint answering shouts from below. It was Hobson's choice for Tim now. He vaulted into the saddle, and the cycle sped down the steep descent. He did not switch on the engine; indeed, he had some trouble in keeping the machine in hand with the brake. At renewed sounds of alarm ahead he allowed the speed to increase. It was a gamble with fate. If the outpost, deliberately or unawares, blocked the track at the foot of the hill, nothing could save either Tim or any person or thing he might strike. If the space was clear, nothing could arrest his course but a shot, so long as he retained control of the machine. Favoured by the darkness he might escape, even should the men fire at him.

Down he flew, steering by guesswork. He heard shouts and the plunging of horses ahead; then saw dimly several dark forms. They appeared to stretch across the track. He could not have checked now if he had wished to. He dashed on, as it were into their midst. On the left he grazed a man about to mount; on the right passed within a few inches of a horse; and while he was still in the throes of nervous anxiety and even terror, the machine had borne him safely through the outpost. He could hardly believe in his good fortune. But there was no doubt about it. He had now to face only the dangers of the track ahead.

These were formidable enough. It was a mad ride at the best: a boulder of any size, and there were many, would hurl him to destruction. Fortunately the track here was fairly straight. At one slight bend he narrowly shaved a tree; a little farther on the machine bumped into a transverse depression, probably the dry channel of a rivulet, and he just averted a side slip. His fortune held good. As he drew farther from the enemy he reduced his speed, and when the downward incline became less steep, and almost insensibly merged in a rise, he jumped off, lighted his lamp, and for the first time started the engine.

The men of the outpost, meanwhile, were scarcely aware of what had happened. The sentry's shout had alarmed them, but they knew not what to be prepared for. There was no firing, so that the Mollendists could not be attempting a surprise. While they were mounting, they were vaguely conscious that something had approached and passed them, swiftly, with scarcely a rustle. Only when the ghostly object was already two or three hundred yards down the track did it flash into the mind of one of them that this must be the machine which he had seen hauled out from under a heap of brushwood in the camp. None of his comrades could ride: it must have been purloined by an audacious Mollendist. Then the pursuit began. But the horsemen had to pick their way carefully in the darkness. Even before Tim gained the switchback portion of the track he had hopelessly distanced them. And having now his lamp to guide him, he was able to avoid obstacles, and dashed up and down the slopes at a great speed.

Presently he came to the forking of the paths, and turned to the right, intending to ride on to the river, and make his way up the channel until he was several miles west of the camp. He had ridden only a few yards along this path, however, when it suddenly struck him that the tracks of his wheels would be clearly visible in daylight, and would guide the enemy to the situation of his friends. Instantly he slowed down, wheeled round and, returning to the fork, ran some little distance along the path in the direction of San Rosario. Then, dismounting, he walked the cycle a little farther; this would have the effect of making the wheel tracks more shallow. On reaching a particularly hard stretch of the path, he lifted the machine on to the rocky ground at the side, and partly wheeling, partly carrying, made his way slowly back towards the cross path leading to the river.

Here he listened for sounds of pursuit. There were none. The horsemen had given it up. He debated whether to try to obliterate the few traces he had made before the necessity of hiding his trail occurred to him. But he reflected that in the deceptive light of the lamp he might leave still more compromising signs, whereas the obvious retracing of his course might suffice to lead the enemy off the scent. Accordingly he let the wheel marks remain, and, carrying or pushing the bicycle over many yards of the sloping ground above the track, he again mounted, and hastened on to the river bank. There he turned to the left in the direction of San Rosario, but after riding a short distance he stopped, wheeled the machine down the sloping bank between the bushes, and then started upstream through shallow water. When he had thus covered about a mile, he pulled on his boots, remounted, and set off along the sandy foreshore.

Remembering suddenly that the river was in full view from the ridge on his right hand, which led directly to the captured camp, he put out his light. He wished he had done so as soon as he turned northward, and felt very uneasy lest the enemy should have seen the lamp from above, and hurried down the gully to intercept him. The sandy bed being whitish, he was able to ride rapidly without a light. A stream trickling into the river from the right indicated the gully. He dashed past, half expecting to be assailed with shots; but there was no sign of an enemy, and he felt that, except for some unforeseen contingency, his dangers were over.