"Yeah. Good stuff for you practical astrogators. Put it over there in reach. And listen...." Thurner's voice lost some of its begrudging tone. "We're on this trip together. Let's make it peaceable." He stretched out a broad paw, and Timmy shook. Thurner, for all his slyness and for all the ease with which Tim had knocked him down back there in the Space Bar, was a powerful man. Tim wondered why he hadn't fought back.

"All right!" he said, "We're together ... for the duration."

"It's a bargain. Now ... tell me more about how she operates. This ship's actually faster than light?"

"Yep! Warps across a light beam just the way a sailboat can exceed the speed of wind on a certain tacks. Look back at the sun."

Thurner turned his head. "I'll be damned. A Doppler effect!"

"We're exceeding the speed of light ... right now!"

"And you're sure this principle of yours won't work on any other ship. Was there anything mixed with the impervium?"

"Central labs checked it," Timmy replied. "It was pure impervium."

"Where'd you get it?"

"By coincidence ... from Neptune."