* * *

He reached a shed, huge, but in disrepair. Monster doors were ajar.
Bell heaved at them and swung them wide. A small, trim, two-seated
plane showed in the shadowy interior.

"This is for emergency use," said Bell grimly, "and we face an
emergency. I'll get it out and load it up. There's a dump of gas and
so on here. You might look around outside the door, in case the one
man who got away can find someone to help stop me."

He set to work checking on fuel and oil. He loaded extra gas in the
front cockpit, a huge tin of it. Another would crowd him badly in the
pilot's cockpit in the rear, but he stowed it as carefully as he
could.

"The local sub-deputy," he added evenly, "has added to the thrill by
having the two men put in one cage. He let his guests observe the
progress of the madness the damned poison produces. And presently, as
the madness grew, the two men fought. They were murder mad. The local
sub-deputy gave his guests the thrill of watching maniacs battling to
the death. He left early this morning with his party, and I imagine
that everyone was suitably submissive to his demands for the future.
There were four men and a woman left as caretakers here. I found the
four men before the cage, baiting the poor devil who'd killed the
other last night. That's why we heard the scream. When I came up with
my rifle they stared at me, and ran.

* * * * *

"I got one then, and as a matter of mercy I put a bullet through the
man who'd gone murder mad. The"--Bell sounded as if he were acutely
nauseated--"the man he'd killed was still in the cage. My God!... Then
I went looking for the other three men. Wasting time, no doubt, but I
found them. I was angry. I got one, and the others ran away again. A
little later the third man jumped me with a knife. He slit my sleeve.
I killed him. Didn't find the fourth man." Bell moved to the front of
the plane. "I'll see if she catches."

He swung on the stick. It went over stiffly. Again, and again. With a
bellow, the motor caught. Bell shouted in Paula's ear.

"We'll get in. Use the warming-up period to taxi out. We want to get
away as soon as we can."

He helped her up into the seat, then remembered. He rummaged about and
flung a tumbled flying suit up in the cockpit with her.

"If you get a chance, put it on!" he shouted. He stepped into a
similar outfit, reached up and throttled down the motor, and kicked
away the block