“Golly-to-gosh!” he muttered, “that was close——”

When he had lifted the craft and headed for home, he glanced back.

Two legs waved over the last cockpit place.

And in that ridiculous position Dick, a hero upside down, came to earth at the end of Sandy’s birthday flight—on the thirteenth, a Friday, as Jeff, white and shaken, hastened to remind them.

“But you sure done some swell control job,” he told Dick.

“Thanks,” Dick retorted, without smiling.

He turned to Larry.

“You did the trick, Larry,” he declared. “I only loosened the cables—freed them——”

“What made them jam, I wonder?” mused Sandy.

“The jinx!”