As they halted before the entrance to this room a white-tunicked slave came forward in response to the summons of one of the warriors of the escort. "A green tunic for this fellow from Trohanadalmakus," he ordered. "Whose insignia upon his back?" inquired the slave. "He belongs to Zoanthrohago," replied the warrior. The slave ran quickly to one of the shelves from which he selected a green tunic. From another he took two large, wooden blocks upon the face of each of which was carved a different device. These he covered evenly with some sort of paint or ink, slipped a smooth board inside the tunic, placed one of the dies face downward upon the cloth, tapped it smartly with a wooden mallet several times and then repeated the operation with the other die upon the reverse side of the tunic. When he handed the garment to Tarzan with the instructions to don it the ape-man saw that it bore a device in black upon the breast and another upon the back, but he could not read them--his education had not progressed thus far. The slave then gave him a pair of sandals and when he had strapped these to his feet the warriors motioned him on down the corridor, which, as they proceeded, he was aware changed rapidly in appearance. The rough bowlder walls were plastered now and decorated with colored paintings portraying, most often, battle scenes and happenings of the hunt, usually framed in panels bordered in intricate, formal designs. Vivid colorings predominated. Many-hued candles burned in frequent niches. Gorgeously trapped warriors were numerous. The green-tunicked slave almost disappeared, while the white tunics of the higher caste bondsmen were of richer material and the slaves themselves often resplendently trapped with jewels and fine leather. The splendor of the scene, the brilliancy of the lighting, increased until the corridor came to an abrupt end before two massive doors of hammered gold in front of which stood gorgeously trapped warriors who halted them and questioned the commander of the escort as to their business. "By the king's command we bring the slave of Zoanthrohago," replied the commander; "the giant who was taken prisoner at Trohanadalmakus." The warrior who had challenged them turned to one of his fellows. "Go with this message and deliver it to the king!" he said.