they
hunt for us?"

"Maybe, and maybe not--no telling what they'll do. However, by the time
they can land and get checked up and ready to hunt for us, we'll be a
mighty small needle, well hidden in a good big haystack."

For several hours they roamed over the mountainous region at high
velocity, seeking the best possible location, and finally they found
one that was almost ideal--a narrow canyon overhung with heavy trees,
opening into a wide, deep gorge upon a level with its floor. A mighty
waterfall cascaded into the gorge just above the canyon, and here
and there could be seen black outcrops which Stevens, after a close
scrutiny, declared to be coal. He deftly guided their cumbersome wedge
of steel into the retreat, allowed it to settle gently to the ground,
and shut off the power.

"Well, little fellow-conspirator against the peace and dignity of the
Jovians, I don't know just where we are, but wherever it is, we're here.
We got away clean, and as long as we don't use any high-tension stuff or
anything else that they can trace, I think we're as safe as money in a
bank."

"I suppose that I ought to be scared to death, Steve, but I'm not--I'm
just too thrilled for words," Nadia answered, and the eager sparkle in
her eyes bore out her words. "Can we go out now? How about air? Shall we
wear suits or go out as we are? Have you got a weapon of any kind? Hurry
up--let's do something!"

"Pipe down, ace! Remember that we don't know any more about anything
around here than a pig does about Sunday, and conduct yourself
accordingly. Take it easy. I'm surprised at the gravity here. This is
certainly Ganymede, and it has a diameter of only about fifty seven
hundred kilometers. If I remember correctly, Damoiseau estimated its
mass at about three one-hundredths that of the Earth, which would make
its surface gravity about one-sixth. However, it is actually almost a
half, as you see by this spring-balance here. Therefore it is quite a
little more massive than has been...."

"What of it? Let's go places and do things!"

"Calm yourself, Ginger, you've got lots of time--we'll be here for quite
a while, I'm afraid. We can't go out until we analyze the air--we're
sure lucky there's as much as there is. I'm not exactly the world's
foremost chemist, but fortunately an air-analysis isn't much of a job
with the apparatus we carry."

While Nadia controlled her impatience as best she could, Stevens
manipulated the bulbs and pipettes