“Climb aboard the Moon jeep, Jerry,” his father said. “We’ve got ten mail deliveries to make.”

Inside, Capt. Welsh pulled down a section of the dash panel revealing a map. “Here’s a map of our route. There aren’t many mail stops on the Moon yet, but they are all important.”

“And the mail must go through!” Jerry added.

Capt. Welsh nodded soberly. “That’s the first law, Jerry.”

As they moved off Jerry saw the big friendly globe of Earth hanging like a green jewel halfway up the jet black sky. He wondered what his mother and baby sister were doing this moment a quarter of a million miles away.

Capt. Welsh showed Jerry how to run the jeep. Jerry found this easy for he had already had a course in mechanics in preparation for his future career as a space man. But sometime later their peaceful ride was interrupted when Capt. Welsh suddenly leaned over and grabbed the wheel.

Jerry was thrown to the side as the car swerved. The vehicle straightened out and slammed to a halt as his father controlled the wheel and applied the brakes.

“What happened?” Jerry breathed, his heart pounding.

His father pointed behind them. “Look.”

Jerry turned and saw the edge of a treacherous ditch running right across the roadway where they would have passed over. The gorge was several feet wide.