Near the bottom of the gate there was a tear in the plastic film between two of the metal bars. Even when the film was pushed aside, the opening was only a few inches wide—but it was an opening. (How strange it was now to recall the easy accessibility of the camp to three curious boys! But in those days the surface was not yet considered safe for human life, and even the camps had to be underground, located on the outskirts of the great cities.)

"I bet I could get through there," the slim boy said.

"What would you want to do that for?" the fat, blond boy scoffed, covering his chagrin, for it was evident that he could never squeeze through the opening.

"Well, you wanted to climb over."

"No one's supposed to go in there," the fat boy insisted.

The declaration was like a dare, and the black-haired boy reacted to it instantly. "I'm going to!" he asserted with his quick, flashing smile. "I bet you're scared," he said to Hendley.

"No, I'm not!"

"I'll go first," the other boy said. And with a darting glance along the wall in both directions to make sure no one was watching them, he crouched before the narrow opening and began to worm his way through. The damaged section of plastic film tore easily, but the bars were so close together that the boy winced as he struggled to wriggle between them.

"You'd better not!" the fat boy warned apprehensively.

But the small, slim body gave another twist and suddenly the boy was gone, disappearing through the opening into the mysterious place beyond the wall.