At nine o'clock in the evening Lord Chelmsford's force, hearing at last what had happened, marched back into the camp, and before day had fairly broken continued their way down to Rorke's Drift. The defenders here, a little garrison, under Lieutenant Bromhead of the 24th, and Chard of the Royal Artillery, had made an heroic defence against some 4000 of the enemy. With mealy bags and boxes they built up a breastwork, and this they held all night, in spite of the desperate efforts of the Zulus to capture it. The hospital, which stood at one end of the intrenchment, was carried and burnt by the Zulus, but the little garrison held out till morning in an inner intrenchment round the store-house. Here was seen what could be done in the way of defence by the aid of hastily-thrown-up intrenchments; and had breastworks been erected at Isandula, as they ought to have been the instant the troops arrived there, and still more so when the major portion of the column marched away, the force there, small as it was, would doubtless have made a successful resistance. Even had the step been taken, when the Zulus were first seen approaching, of forming a laager--that is, of drawing up the waggons in the form of a hollow square--at the foot of the steep mountain, the disaster might have been averted. It may be said that the massacre of Isandula was due entirely to the over-confidence and carelessness of the officers in command of the column. The boys on waking crawled back cautiously to a spot where they could obtain a view over the valley, and, to their surprise, the force which, on the afternoon before, they had seen out there had entirely disappeared. Many bodies of Zulus were seen moving about, but there was no trace of the white troops. They made their way to the back of the hill, and then, to their horror, saw the column moving away from them, and already half-way on its road to Rorke's Drift. Their first impulse was to get up and start off in a run in pursuit of it, but this feeling lasted but a moment, for between the hill and the column many scattered parties of Zulus were to be seen. The boys looked blankly at each other. It was but too clear that they were cut off and alone in the enemy's country. "Whatever shall we do, Dick?" "I have not the least idea, Tom. At any rate there is nothing to be done at present. We should be assegaied in a moment if we were to go down; let's go back to our old look-out." After much talk they agreed that it would be hopeless to attempt to make south and cross the Buffalo, as many of the fugitives had done. There were sure to be strong bodies of Zulus along the river, and even if they passed these without detection they would be unable to cross the river, as they would find no ford, and neither of them was able to swim.