Dyann stood over her prisoner. "Vere is Ray Ballantyne?" she asked. "The Earthman who vas arrested off the liner a few days ago."

"I don't know," he gasped.

Dyann drew her knife, smiling nastily.

"Camp Muellenhoff, you savage! Outside the city, to the north. You'll never make it. You'll kill us all."

The cradle rumbled forward to the hangar airlock. Urushkidan took the pilot chair and strapped himself in and relit his pipe with nervous boneless fingers. Dyann whistled tunelessly between her teeth. It was dark in the airlock chamber as the pumps evacuated it.

"Why bother wit tis Ballantyne?" asked the Martian. "What claim has he on us? It will need all our luck and my genius for us to escape with our own lives."

"We need his luck too, maybe," said Dyann shortly.


The outer valve swung open and they trundled over the rails to the surface of Ganymede. Behind them, the dome covering the city rose against a background of saw-toothed mountains and dark, faintly star-lit sky. A dwarfed sun lit the spaceport field with pale cold luminance. There were not many vessels in sight, no liner or freighter was in and the military ports were elsewhere. One lean black patrol ship stood not far off.

"They vill be out after us soon," said Dyann. "Vat can you do about that boat there, huh?"