The fishermen matter-of-factly stepped on this strip, and Ulan Dhor gingerly followed them to the swift center. "I see roads flowing like rivers in Ampridatvir," he said. "You call me demon; truly I think the glove is on the other hand."

"It is no magic," said the younger man shortly. "It is the way of Ampridatvir."

At regular intervals along the street stood stone vestibules about ten feet high that had the appearance of sheltering ramps leading below the street.

"What lies below?" inquired Ulan Dhor.

The fishermen shrugged. "The doors are tight. No man has ever gone through. Legend says it was the last work of Rogol Domedonfors."

Ulan Dhor withheld further questions, observing a growing nervousness in the fishermen. Infected by their apprehension he kept his hand at his sword.

"None live in this part of Ampridatvir," said the old fisherman in a hoarse whisper. "It is ancient beyond imagining, ridden with ghosts."

The streets broke into a central square, the towers fell away before them. The sliding strip coasted to a stop, like water flowing into a pool.

Here glowed the first artificial light Ulan Dhor had seen—a bright globe hung on a looping metal stanchion.

In this light Ulan Dhor saw a youth in a gray cloak hurrying across the square ... A movement among the ruins; the fishermen gasped, crouched. A corpse-pale creature sprang out into the light. Its arms hung knotted and long; dirty fur covered its legs. Great eyes glared from a peaked, fungus-white skull; two fangs hung over the undershot mouth. It leapt upon the wretch in the gray robe and tucked him under his arm; then, turning, gave Ulan Dhor and the fishermen a look of baleful triumph. And now they saw that the victim was a woman ...

Ulan Dhor drew his sword. "No, no!" whispered the older man. "The Gaun will go its way!"

"But the woman it has taken! We can save her!"

"The Gaun has seized no one." The old man clutched at his shoulder.

"Are you blind, man?" cried Ulan Dhor.

"There are none in Ampridatvir but the Greens," said the younger man. "Stay by us."

Ulan Dhor hesitated. Was the woman in gray, then, a ghost? If so, why did not the fishermen say as much? . . .

The Gaun, with insolent leisure, stalked toward a long edifice of dark tumbled arches.

Ulan Dhor ran across the white square of ancient Ampridatvir.

The monster twisted to face him and flung out a great knotted arm, as long as a man was tall, ending in a white-furred clump of fingers. Ulan Dhor hewed a tremendous blow with his sword; the Gaun's forearm dangled by a shred of flesh and bone-splinter.

Jumping back to avoid the spray of blood, Ulan Dhor ducked the grasp of the other arm as it swung past. He hacked again, another great blow, and the second forearm dangled loosely. He sprang close, plunged his blade at the creature's eye and struck up into the beast's skull-case.