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Rh wield the same power that brought me into existence."

"You are right," said Carthoris. "Still, I hate to leave them, though there is naught else to do," and so the two turned from the courtyard, and making their way into one of the broad avenues, crept stealthily in the shadows of the building toward the great central plaza upon which were the buildings occupied by the green warriors when they visited the deserted city.

When they had come to the plaza's edge Carthoris halted.

"Wait here," he whispered. "I go to fetch thoats, since on foot we may never hope to escape the clutches of these green fiends."

To reach the courtyard where the thoats were kept it was necessary for Carthoris to pass through one of the buildings which surrounded the square. Which were occupied and which not he could not even guess, so he was compelled to take considerable chances to gain the enclosure in which he could hear the restless beasts squealing and quarrelling among themselves.

Chance carried him through a dark doorway into a large chamber in which lay a score or more