Urga's face mottled as he hastened to obey. When Artok stood finally released, he glared heavily at Hilary and Joan. Then slowly a smile broke over his warty features, a smile that boded unutterable things. Hilary waited quietly, ready to seize the slightest opening; Joan pressed wide-eyed against his shoulder.

"Know this Earth dog?" the Viceroy jerked at Hilary.

Urga's glance was puzzled. "I told you I threw him out of the entrance, but even then I felt I had seen him before."

"You have, Cor Urga," the ruler laughed shortly. "This is the one who is responsible for the mutterings of the slaves. He slew your comrade, Gornu."

The captain started, peered into his captive's unflinching countenance.

"He's disguised!" he cried. "Let me kill him, Magnificent." He fingered his sun-tube significantly.

The Viceroy was in high good humor now.

"Not so fast. You would let him off too easy. I have a better scheme. We shall show the mutinous dogs how we treat those who revolt against our will."

A cruel smile broke over Urga.

"I understand, Magnificent. Make a public warning of him like that fool Peabody. Rip out his tongue and his eyes, smash his eardrums, and ride him from city to city, in chains."