tars to pick our next G-0 from. Let's get going."

Arcot moved the red switch, and the ship shot away at half speed. They
watched the green image of the white dwarf fade and then suddenly flare
up and become bright again as they outraced the light that had left it
five centuries before.

They stopped and took more photographs so that the path could be marked.
They stopped every light century until they reached a point where the
star was merely a dim point, almost lost in the myriad of stars around
it.

Then out to the edge of the galaxy they went, out toward their own
universe.

"Arcot," Morey called, "let's go out, say one million light years into
space, at an angle to this galaxy, and see if we can get both galaxies
on one plate. It will make navigation between them easier."

"Good idea. We can get out and back in one day--and this 'time' won't
count back on Earth, anyway." Since they would travel in the
space-strain all the time, it would not count as Earth time.

Arcot pushed the red control all the way forward, and the ship began to
move at its top velocity of twenty-four light years per second. The
hours dragged heavily, as they had when they were coming in, and Arcot
remained alone on watch while the others went to their rooms for some
sleep, strapping their weightless bodies securely in the bunks.

It was hours later when Morey awoke with a sudden premonition of
trouble. He looked at the chronometer on the wall--he had slept twelve
hours! They had gone beyond the million light year mark! It didn't
matter, except it showed that something had happened to Arcot.

Something had. Arcot was sound asleep in the middle of the
library--exactly in the middle, floating in the room ten feet from each
wall.

Morey called out to him, and Arcot awoke with a guilty start. "A fine
sentry you make," said Morey caustically. "Can't even keep awake when
all you have to do is sit here and see that we don't run into anything.
We've gone more than our million light years already, and we're still
going strong. Come on--snap out of it!"

"I'm sorry--I apologize--I know I shouldn't have slept, but it was so
perfectly quiet here except for your deep-toned, musical snores that I
couldn't help it," grinned Arcot. "Get me down from here and we'll
stop."

"Get you down, nothing!" Morey snapped. "You stay right there while I
call the others and we decide what's to be done with a sleeping sentry."

Morey turned and left to wake th