He crouched in the hollow existing between two of the buildings, and stared out at the intruders. And thanks to his quickness he escaped observation, the Spaniard passing some yards away, while following him were five of the native allies, in whose charge walked the chief priest, his red robe in tatters. They passed in through the palace gate, and were lost to view.

"Gone in search of treasure," thought Roger. "Shall I follow, or make for the stage?"

He hesitated, fearing that if he were to delay the canoes might leave without him. He listened to the distant shouts and to the cries of the combatants, for on every side small parties of famished Mexicans were offering a last resistance to the enemy. Then he sprang to his feet and ran after the Spaniard.

"No," he thought; "I have come so far, and have put up with so much, that I will not sacrifice all at the last for fear of being left behind. I will follow, and perhaps I may be successful. I wish that Phil or Peter, or even Tamba, were here to give me their help."

Darting across the street he passed through the gate and traversed a courtyard. At the exit he paused and suddenly crouched to the ground. Then he crawled forward on hands and knees, and gained some shrubs in the garden. Alvarez was again in sight, and the priest and his captors led the advance.

"This is the garden," Alvarez was saying. "Now, dog with the red robe, you who have slain so many of my comrades, lead the way to the treasure. Here is the disc. Lead swiftly, for I would have none else see me."

He looked round furtively, fearful that his comrades should discover his deceit and wrest the treasure from him. Then he stalked to the side of the priest, tore the disc from the very same leather pouch in which Roger had kept it, and thrust it in front of his face.

"Come," he said, with an oath, looking about him with frightened eyes. "Move! Let your wits work swiftly. This holds the secret. Fernando Cortes knew that, and you also. I have learned that you are the only man who can read that secret. Read, then, and quickly, or I will treat you as you have served those others."

He showed his teeth, while the hand which held the disc shook, so great was his anxiety. As for the priest, he had no alternative. A dagger was in the Spaniard's other hand, while the natives who held him looked as though they would slaughter him with glee. He trembled, for this man who had killed so many wretched victims feared to die himself. He trembled, stretched out his hand for the disc, and then suddenly hesitated. Courage came to him in this terrible position, and he realized that if he showed the whereabouts of the treasure, he would be slaughtered as surely as if he refused. And these Spaniards lived and fought for gold and jewels. If he refused, then they would have gained nothing but their conquest of the city, and besides—"It was promised to the gallant white chief who led us and gave us his counsel," he thought. "It belongs to him, and if he cannot take it away, then it shall lie hidden where it is now. No; I will die now. Let this wretch slay me, and have done."

He was in the very act of flinging the disc to one side when his eye happened to roam across the garden, amongst its trampled bushes and shrubs, once so neat and so brilliant with blooms, and now almost bare of leaves, for the reason that the starving people had plucked and eaten them. He started and raised his head. Then his eye flashed a message, and he stared at the disc once more. For he had seen Roger. The figure of the giant cacique had appeared as he crawled from one bush to another, and this head priest, in his hideous tattered robe of red, who had once so nearly killed Roger, determined to befriend him.