Greg Manning swiveled his chair. "Well, Russ, we're ready to begin. Let's get Wrail first."

Russ nodded silently, his mind still half full of fleeting thought. Absent-mindedly he knocked out his pipe and pocketed it, swung around to the manual of the televisor. His fingers reached out and tapped a pattern.

Callisto appeared within the screen, leaped upward at them. Then the surface of the frozen little world seemed to rotate swiftly and a dome appeared.

The televisor dived through the dome, sped through the city, straight for a penthouse apartment.

Ben Wrail sat slumped in a chair. A newspaper was crumpled at his feet. In his lap lay a mangled dead cigar.

"Greg!" yelled Russ. "Greg, there's something wrong!"

Greg leaped forward, stared at the screen. Russ heard his smothered cry of rage.

In Wrail's forehead was a tiny, neatly drilled hole from which a single drop of blood oozed.

"Murdered!" exclaimed Russ.

"Yes, murdered," said Greg, and there was a sudden calmness in his voice.