"Bob," he murmured, "they have made a way for a corpse through the great wall of Agpur."
[1] In modern parlance, "gas."
CHAPTER XXIII.
RUN TO EARTH.
On the evening of the day when the bodies of the two murdered Englishmen had been laid in the grave with all imaginable honour, four figures crept stealthily through the shadows at the base of the ramparts of the palace. After the funeral, in the course of a stroll round the walls, Gerrard and Charteris had refreshed their memory of the various localities. Long ago they had satisfied themselves as to the identity of the tree which masked the exit of the secret passage, and on looking from the parapet they discovered that it had survived the siege uninjured. But the hole it concealed was by no means easy to reach, since it was about half-way up the great face of wall, which was much higher on the outside than the inside. True, the stones on the surface were rough-hewn and much weathered, and vegetation of all sorts had struck its roots between them during the recent rains, but they were not too firmly fixed in their places, as a gap here and there showed. The adventurers agreed that it would be impossible to make their attempt from the inside of the fortress, owing to the strict watch maintained there, and since this decision implied a climb up the sheer crumbling wall-face from below, the help of a rope was very necessary. Since to lower one from above would have attracted attention, it was clear that it must in some way be raised from below, and the two friends had set their wits to work, with the result that when they paused—to all appearance quite casually—on the parapet and looked over at the tree, each of them drew furtively from his pocket a ball of twine. Charteris laughed.
"At any rate I'm glad you haven't beat me, Hal. I could think of nothing better than unwinding the string and dropping one end on each side of the tree, in the hope that it might remain untouched till to-night. No, by Jove! I have thought of a better way. Give us your ball."
He knotted the two ends of twine, and dropped the balls dexterously one on either side of the tree, the string thus remaining steadied against possible winds by the weight at the bottom. Then, talking carelessly, he led his friend on, both hoping that no acquisitive small boy might chance to poke about along the base of the wall during the afternoon. Rukn-ud-din and Amrodh Chand had already been informed that their services were desired that night, and at the appointed time they slipped away from their quarters into the darkness and joined the two Englishmen. Caution was necessary in passing through the narrow lanes of the city, not only lest implacable partisans of Sher Singh should seize the opportunity of avenging their master's fall, but lest a British patrol should be encountered. Charteris and Gerrard knew the password, but the composition of their party was certain to rouse curiosity, and lead to the suspicion that something strange was on foot. By dint of effacing themselves deftly round corners, and hiding in doorways, they managed to avoid notice, and reached the appointed spot at the desired time, when the moon, rising behind the palace itself, threw this portion of the wall, and the ground at its foot, into the deepest shadow. Sentries were posted both within and without the walls, and it was necessary to wait until the one on this beat had turned his back, and then run singly from one patch of shade to another. All once safely assembled at the foot of the wall, Charteris produced a dark lantern, and while the rest stood so as to shield him from observation, hunted for the two little balls of twine. They had fallen not far from one another, and by pulling at the strings it became evident that they were still knotted over the projecting tree-trunk. To one of them the end of a stout rope was attached, and then the other was pulled, so that the rope might be, as the twine now was, passed over the tree. When the two ends of the rope hung level, forming as it were a double handrail, Charteris seized them, and began to climb, supporting himself by the ropes at each step as he felt for a higher rest for his foot. The slight sound he made, gradually growing more distant, was the only guide those below had as to his position, but at last there came a tug upon each rope, which was to be the sign that he had reached the tree and found the entrance of the passage practicable. Before following him, Gerrard turned to the two natives.
"Brothers, you know that we hope to seize this night him who has been guilty of so many crimes, that he may be brought to a fair trial. You know also that a vow of secrecy forbids us to share our knowledge of this place with you. Swear to me, then, that after to-night it shall be to you as though it did not exist, whatever may happen to us."
"We swear it, sahib," said both men, but Rukn-ud-din added, "Provided that if your honour should call to us for help, we are at liberty to follow you."
"In that case you may certainly come up," said Gerrard gravely, and he followed Charteris up the wall. Amrodh Chand's eyes sought Rukn-ud-din's in the darkness.