The three stared from one to another. At last the major broke the silence.

"All right," he snapped. "Have it your own way. I suppose we would stand out like sore thumbs if we wore clothes."

It took the trio but a minute to disrobe. They slipped through the gate, a strange sight: Henry, small and spindly, chin-whiskers waving animatedly; Professor Paulsen, gaunt, lean-shanked, stooped; and Major Coggleston, still strong and well-built, but with a noticeable spare tire beginning to develop around his midriff.

Inside, a great open fire was burning, with a throng of male and female nudists disporting themselves about it. Some were toasting wieners and marshmallows; other only their own epidermis. There was much laughter and good-natured raillery.

"Joseph!" exclaimed Henry tensely, his goatee quivering to a point like a setter's tail. "There! See her? That blonde girl—"

His colleague turned on him.

"Henry Horn, I'm warning you for the last time!" he clipped. "We're having a hard enough time as it is, without your calling that young lady's anatomical details to our attention. So keep quiet!"

"Oh, all right," the little man sulked. "Just because you think you're smarter than I am—"

"Joe! Henry!" Major Coggleston interrupted excitedly. "Look! That man walking off into the shadows! Hasn't he red hair?"

The two friends shot quick glances in the direction the officer pointed.