"Toss something down into the passage," said Zoraida. "Anything, a coin if you have no other useless object upon you."
So a coin it was. He heard it strike and roll and clink against rock. Then he heard the other sound, a dry noise like dead leaves rattling together. Despite him he drew back swiftly. Zoraida laughed and closed the door.
"You know what it is then?"
He knew. It was the angry warning of a rattlesnake; his quickened fancies pictured for him a dark alleyway whose floor was alive with the deadly reptiles and he felt an unpleasant prickling of the flesh.
"If you went on," she told him serenely, "and you chose any door but the right one—and there are twelve doors—you would never come to the end of a short hallway. And, even though you happened to choose the right door, it were best for you if Zoraida went ahead. Come, my friend."
She opened another door and stepped into the narrow opening. Though he had little enough liking for the expedition, Kendric followed. Once more he heard a rustling as of thousands of dry, parched leaves, and was at loss to know whence came the ominous sound. Again Zoraida laughed, saying: "I have been before and prepared the way," and they went on. Then came another door with still other bars and locks. Zoraida unlocked one after the other, then stood back, looking at him with the old mischief showing vaguely in her eyes.
"Open and enter," she said.
He threw back the door. But on the threshold he stopped and stared and marveled. Zoraida's pleased laughter now was like a child's.
"You are the first man, since Zoraida's father died, to come here," she told him. "And never another man will come here until you and I are dead. It is a place of ancient things, my friend; it is the heart of Ancient Mexico."
The heart of Ancient Mexico! Without her words he would have known, would have felt. For old influences held on and the atmosphere of the time of the Montezumas still pervaded the place. He forgot even Zoraida as he stepped forward and stopped again, marveling.