The sliding door to the commander's office opened and a tall, distinguished man with iron-gray hair entered, followed by a handsome, younger man.

"Devers!" exclaimed Hemmingwell in obvious delight. "I didn't expect you until this evening."

"Got away earlier than I figured," replied the elder man, who then turned to the two Solar Guard officers. "Hello, Commander Walters, Major Connel. Meet Dave Barret, my assistant." He gestured toward the young man beside him and they shook hands in turn.

"Well," said Devers, "have we missed anything?"

"Just starting," replied Walters.

"Fine," said Devers. "Oh, by the way, I want it understood, Commander, that while I am lending Dave to you to work on the operation with the professor, I'm not even going to let you pay him. He remains on my payroll, so you can't take him away from me. The Jilolo Spaceways would be lost without him."

Walters smiled. "All right with me," he said.

"I don't care who pays him, as long as he's with me on this, Commander," said Hemmingwell, wiping his glasses carefully. "That young man has a mind equipped with a built-in calculator."

Dave Barret grinned in obvious embarrassment. "If Mr. Devers can devote his time to you for one credit a year as salary, I have no objections to working on this project," he said. "In fact, I told Mr. Devers that if he didn't let me come down here, I'd quit and come, anyway."

Hemmingwell beamed. "Well, now, if Captain Strong were only here, we could get along with the business at hand."