Gary studied it. "It doesn't seem to be moving," he said. "Maybe some motion, but not enough to detect.”

"A derelict," suggested Herb.

Gary shook his head. "Still doesn't explain the lack of tubes," he said.

The two men lifted their eyes from the screen and looked at one another.

"The Old Man said we were to hurry to Pluto," Herb reminded Gary.

Gary wheeled about and strode back to the controls. He lowered his gangling frame into the pilot's chair and disconnected the robot control. His lingers reached out, switched off the geosectors, pumped fuel into the rocket chambers.

"Find something to hang onto," he said, grimly. "We're stopping to see what this is all about.”

Chapter Two

The mysterious space-shell was only a few miles distant. With Herb at the controls, the Space Pup cruised in an ever-tightening circle around the glinting thing that hung there just off Pluto's orbit.

It was a spaceship. Of that there could be no doubt despite the fact that it had no rocket tubes. It was hanging motionless. There was no throb of power within it, no apparent life, although dim light glowed through the vision ports in what probably were the living quarters just back of the control room.