"Well, Professor Ruddle told me not to move it. And Professor Guggles," McCarthy added as a triumphant clincher.

The other considered him for a moment, his jaw working like a peculiar cam. His eyes traveled up McCarthy's spare body. Then he spat contemptuously and turned to the rock. He grunted against it.

McCarthy sighed and put a hand on his shoulder. He spun him around. "What for you have to go and act so stubborn, fella? Now I'll have to lick you."

Without changing his vacant expression to one of the slightest hostility, the stranger aimed a prodigious kick at his groin. McCarthy dodged easily. That was an old hobo trick! He chopped out rapidly against the man's face. The stranger ducked, moved away and came back fighting.

This was a perfect spot for the famous McCarthy one-two. McCarthy feinted with his left, seemingly concentrating all his power at the other's middle. He noticed that his opponent was also making some awkward gesture with his left. Then he came up out of nowhere with a terrific right uppercut.

WHAM!

Right on the—

—on the button. McCarthy sat up and shook his head clear of bright little lights and happy hums. He had connected, but—

So had the other guy!

He sat several feet from McCarthy, looking dazed and sad. "You are the stubbornest cuss I ever saw! Where did you learn my punch?"