"Now," Dick said, "it is time for me to be off. I have got a good seventy miles to ride to Lucknow. It is no use my thinking of going after the column, for they would be some fifty miles away from the place where we left them by to morrow night. If I can get a good horse I may be at Lucknow by midday to-morrow. The horses have all had a rest to-day. Sir Colin will, I am sure, send off at once, and the troops will march well to effect a rescue. They will make thirty-five miles before they halt for the night, and will be here by the following night." "We must not be too sanguine, Dick. It is just possible, dear boy, that if all goes well you may be back as you say, in forty-eight hours, but we will make up our minds to twice that time. If you get here sooner, all the better; but I don't expect that they will hit us, and after tiring a bit the chances are they will not care to waste ammunition, and will try to starve us out." CHAPTER XXIV. BEST AFTER LABOR. With a tender farewell of his father and brother, the midshipman prepared for his expedition. One end of the rope had been fastened round the large mast which rose from the dome. Holding the coil over his shoulder, Dick made his way down the dome, on the side opposite that at which they had ascended, until it became too steep to walk; then he lay down on his back, and paying the rope out gradually, let himself slip down. The lower part of the descent was almost perpendicular; and Dick soon stood safely on the terrace. It was, as he expected confidently that it would be, quite deserted on this side. Then he let go of the rope, and Major Warrener, who was watching it, saw that the strain was off it, pulled it up a foot to make sure, and then untied the knot. Dick pulled it gently at first, coiling it up as it came down, until at last it slid rapidly down. He caught it as well as he could, but he had little fear of so slight a noise being heard on the other side of the great dome; then he tied the rope to the parapet, lowered it carefully down, and then, when it was all out, swung himself out over the parapet, and slid down the rope. The height was over eighty feet; but the descent was a mere nothing for Dick, accustomed to lark about in the rigging of a man-o'-war. He stood perfectly quiet for a minute or two after his feet touched the ground, but outside everything was still. Through the open-carved stonework of a window he could hear voices inside the tomb, and had no doubt that the leaders of the enemy's force were there.