Jack and Rafael, with their respective troops, reached the foot of the staircase at the same time, and began to climb up. The priests, frantic with terror, threw down huge stones, tore the tiles off the shrine, and hurled them viciously at their foes. The drum was still beating, the incense rolling, and high above the din could be heard the strident voice of the old high-priest calling on his gods. "Jack! Rafael! keep your eye on Xuarez; he is free," replied Philip, as they fought their way upward. Such, indeed, was the case. Don Hypolito had managed to get his hands free, and was now struggling with Ixtlilxochitli. Why he did so, none of the Englishmen could make out, unless it was to kill the old man for trying to sacrifice him to Huitzilopochtli. The attendant priests closed round the struggling figures to help their head, and thus omitting to defend the teocalli, in a few moments the assailants were on the top. Jack sprang up first on to the platform, closely followed by Tim. The crowd of priests rolled on either side, rolled over the sides of the pyramid, falling into the frantic mass below. Then they saw the design of Xuarez. "Catch him Tim; he has the opal!" Xuarez, with torn clothing and pale, blood-stained face, stood against the shrine with the opal flashing in one hand and a spear in the other. Jack dashed forward to seize him, and Xuarez, with a yell of rage, hurled the spear. In a second Tim had thrown himself between the weapon and Jack, receiving it full in his breast. He fell back with a cry into Philip's arms, and Jack, mad with anger at his friend's disaster, flung himself forward on Xuarez. The rebel leader dashed to one side, and threw himself over the smooth side of the pyramid, sliding downward on his back. Jack, with his revolver firmly grasped in his right hand, followed in the same way; but before he reached the ground a red mass shot rapidly past him. "Ixtlilxochitli." The rebel leader, holding the opal on high, dashed through the crowd of Indians, who opened a path before the sacred gem, followed closely by the red figure of the high priest. Jack saw the idea Xuarez had in his head. He was making for the secret way under the bridge, hoping to escape to the mountains with his booty. At once he followed the flying figures, but the crowd closed around him, and he had much to do to protect himself. Martez saw his danger and sent a body of soldiers to his assistance. In a few minutes, he was safe on the bridge surrounded by his friends. Xuarez and Ixtlilxochitli had disappeared through the secret entrance. Determined to revenge the wound of Tim and secure the opal, Jack would have followed, when he heard a hundred voices on the platform beyond the pierced wall shout out the name of Xuarez. Wondering the reason of this, he darted up the street, followed by a few troops, and on gaining the platform, looked over to where the soldiers were pointing.