"There's a great deal of overlap," his father answered. "We're going to have to section and fit the pieces together like a jigsaw puzzle. Wait'll I'm through here."

For about five minutes more, pictures continued to come off the roll. Then Peter picked up a pair of scissors and arranged the prints in their proper sequence.

"Clear the table," he told Jeff, "and fit these together as I hand them to you."

For a little while longer, they worked in silence. Then Peter laid down his scissors.

"That's all," he said. "Now, what have we got?"

"I don't know," answered Jeff, bewilderment in his voice. "It looks like nothing I've ever seen."

Peter stepped up to the table and squinted at the shadowy films with eyes practiced in reading rock formations. He shook his head.

"It is strange," he said, finally.

"Do you see what I see?" demanded Jeff. "There's no real crew space. There's this one spot—up front—" he indicated it with his finger—"that's about as big as a good sized closet. And nothing more than that—except corridors about twenty inches in diameter running from it to points all over the ship. She must be flown by a crew of midgets."

"Midgets," echoed the older man, thoughtfully. "I never heard of an intelligent race that small."