The Spaniards were furious at the non-success of their enterprise, but after reconnoitering the position in every way, the commanders came to the conclusion that it was absolutely impregnable, and that the only plan was to starve out the besieged. It did not appear that there could be any other way of retreat, and a small force could watch the path; as it would be as difficult for the besieged to force their way back by it, as for the besiegers to find an entry. The greater portion of the force was, therefore, marched home; a guard of two hundred men being set, to watch the point where the path along the precipice started.

The incidents of the five weeks which elapsed after the siege began were not important. It was soon found that the Spaniards had abandoned the notion of attack; but the vigilance of the defenders was never relaxed, for it was possible, that at any moment the enemy, believing that they had been lulled into carelessness, might renew their attack.

Twice, indeed, at nightfall the Spaniards advanced and crept round the point of defense; but were each time received so quickly, by the fire of the defenders of the barricade, that they were finally convinced that there was no hope, whatever, of catching them napping.

At the end of five weeks it was determined that the time had arrived when they should leave their fortress. The Spaniards had placed a guard of fifty men near the foot of the precipice, to prevent any attempt of the besieged to descend its face by means of ropes; but above no precautions had been taken, as it appeared impossible, to anyone looking at the face of the cliff from a distance, that a human being could scale it.

Thanks, however, to the pains which had been taken previously, the way was open. In most places, rough steps had been cut; in others, where this was impossible, short stakes had been driven into crevices of the rock to form steps; and although the ascent was difficult, it was quite possible, to lightly clad and active men.

The time chosen for the attempt was just after dusk had fallen, when it was still light enough to see close at hand, but dark enough to prevent those in the valley observing what was passing. A young moon was already up, giving sufficient light to aid the enterprise. Some of the most active of the natives first ascended. These were provided with ropes which, at every bend and turn of the ascent, they lowered so as to give assistance to those mounting behind. The strictest silence was enforced, and the arms were all wrapped up, so as to avoid noise should they strike the rock.

One by one the men mounted, in a steady stream. All were barefooted, for Ned and Gerald had imitated the example of the natives; and upon such a task as this, the bare foot has an infinitely safer hold than one shod with leather. Although the cliff looked quite precipitous, from a distance; in reality it sloped gently backwards, and the task was far less difficult than it appeared to be.

The most dangerous part, indeed, was that which followed the arrival at the top. The mountain sloped so steeply back that it was like climbing the roof of a very steep house, and hand and foot were, alike, called into requisition to enable them to get forward; indeed, to many it would have been impossible, had not the leaders lowered their ropes down from above, affording an immense assistance to those following.

At last, the whole body reached the top and, descending upon the other side, plunged into the forest. They directed their course to a valley, ten miles distant, where considerable supplies of provisions had been stored up; and where some of their crops had been planted, a few weeks before the arrival of the Spaniards. Here for two days they feasted, secure that a considerable time might elapse, before the Spaniards discovered that they had vanished from the fortress.

Then they prepared to put into execution the plan upon which they had resolved. They knew that in the town, there would be no watch of any sort kept; for all believed them cooped up, without a chance of escape. The four troops then, commanded as before, issued from the forest as the sun went down, and marched towards the town. It was soon after midnight when they entered the streets and, proceeding noiselessly through them, advanced to the spot assigned to each.