"There are no streets in Xuchotl," he answered. "No squares nor open courts. The whole city is built like one giant palace under one great roof. The nearest approach to a street is the Great Hall which traverses the city from the north gate to the south gate. The only doors opening into the outer world are the city gates, through which no living man has passed for fifty years."
"How long have you dwelt here?" asked Conan.
"I was born in the castle of Tecuhltli thirty-five years ago. I have never set foot outside the city. For the love of the gods, let us go silently! These halls may be full of lurking devils. Olmec shall tell you all when we reach Tecuhltli."
So in silence they glided on with the green fire-stones blinking overhead and the flaming floors smoldering under their feet, and it seemed to Valeria as if they fled through Hell, guided by a dark-faced lank-haired goblin.
Yet it was Conan who halted them as they were crossing an unusually wide chamber. His wilderness-bred ears were keener even than the ears of Techotl, whetted though these were by a lifetime of warfare in this silent corridors.
"You think some of your enemies may be ahead of us, lying in ambush?"
"They prowl through these rooms at all hours," answered Techotl, "as do we. The halls and chambers between Tecuhltli and Xotalanc are a disputed region, owned by no man. We call it the Halls of Silence. Why do you ask?"
"Because men are in the chambers ahead of us," answered Conan. "I heard steel clink against stone."
Again a shaking seized Techotl, and he clenched his teeth to keep them from chattering.
"Perhaps they are your friends," suggested Valeria.
"We dare not chance it," he panted, and moved with frenzied activity. He turned aside and glided through a doorway on the left which led into a chamber from which an ivory staircase wound down into darkness.
"This leads to an unlighted corridor below us!" he hissed, great beads of perspiration standing out on his brow. "They may be lurking there, too. It may all be a trick to draw us into it. But we must take the chance that they have laid their ambush in the rooms above. Come swiftly now!"
Softly as phantoms they descended the stair and came to the mouth of a corridor black as night. They crouched there for a moment, listening, and then melted into it. As they moved along, Valeria's flesh crawled between her shoulders in momentary expectation of a sword-thrust in the dark. But for Conan's iron fingers gripping her arm she had no physical cognizance of her companions. Neither made as much noise as a cat would have made. The darkness was absolute. One hand, outstretched, touched a wall, and occasionally she felt a door under her fingers. The hallway seemed interminable.
Suddenly they were galvanized by a sound behind them. Valeria's flesh crawled anew, for she recognized it as the soft opening of a door. Men had come into the corridor behind them. Even with the thought she stumbled over something that felt like a human skull. It rolled across the floor with an appalling clatter.
"Run!" yelped Techotl, a note of hysteria in his voice, and was away down the corridor like a flying ghost.
Again Valeria felt Conan's hand bearing her up and sweeping her along as they raced after their guide. Conan could see in the dark no better than she, but he possessed a sort of instinct that made his course unerring. Without his support and guidance she would have fallen or stumbled against the wall. Down the corridor they sped, while the swift patter of flying feet drew closer and closer, and then suddenly Techotl panted: "Here is the stair! After me, quick! Oh, quick!"
His hand came out of the dark and caught Valeria's wrist as she stumbled blindly on the steps. She felt herself half dragged, half lifted up the winding stair, while Conan released her and turned on the steps, his ears and instincts telling him their foes were hard at their backs. And the sounds were not all those of human feet.
Something came writhing up the steps, something that slithered and rustled and brought a chill in the air with it. Conan lashed down with his great sword and felt the blade shear through something that might have been flesh and bone, and cut deep into the stair beneath. Something touched his foot that chilled like the touch of frost, and then the darkness beneath him was disturbed by a frightful thrashing and lashing, and a man cried out in agony.
The next moment Conan was racing up the winding staircase, and through a door that stood open at the head.
Valeria and Techotl were already through, and Techotl slammed the door and shot a bolt across it—the first Conan had seen since they had left the outer gate.
Then he turned and ran across the well-lighted chamber into which they had come, and as they passed through the farther door, Conan glanced back and saw the door groaning and straining under heavy pressure violently applied from the other side.
