Barby drove home another point. "Steve gave us a cover story, and what good is a cover story if you don't use it?"

Scotty grinned at Rick's expression of resignation. "Better give up,"

he advised.

Jan hadn't said anything. She just looked at Rick in a beseeching way that said as much as all Barby's arguments.

Rick shook his head unhappily. He knew when he was licked. Come right down to it, he didn't have the say-so on Jan leaving the island, anyway. He had taken a stand against her going to Whiteside, based half on intuition and half on the knowledge that a secret soon ceases to be one when it's flaunted in public. And Jan's presence was a part of the big secret of Spindrift.

He stood up and shrugged. "Chances are it will be all right. But if Jan is recognized by any of the enemy..."

"Steve isn't even sure there is an enemy," Barby pointed out swiftly.

"How can you be so sure?"

Rick didn't answer. He turned and went into the house, the others at his heels. In the library, he consulted the schedule Steve had given them, so they would know where to reach him at any time. The agent was at JANIG headquarters in Washington today.

Rick got the number, and asked for Steve's extension. In a moment he had the agent on the wire.

"Let's scramble," he said, and threw the switch. Then, "Steve, Barby wants to take Jan to Whiteside. What do you think?"

Steve hesitated before he answered, "It's a little hard to give reasons why she shouldn't go, Rick. Have you checked her on the cover story?"

"Not yet. I will, though, if you say the word."

Again Steve hesitated, and Rick knew the agent was very much in his own position. There were no reasons to believe it would do any harm.

Yet...

"Let her go," Steve said finally. "Only ask her and Barby not to get into any public parades. You know."

"I know," Rick affirmed. "All right, Steve. When is Marks coming?"

"We're not certain yet. Ask your father. Marks is having some trouble with the computations."

"Okay, Steve. See you soon." He hung up and turned to the others. "He says all right, but please don't get into any public parades. In other words, Barby, don't cover too much territory."

Scotty spoke up. "We'd better tell Duke and Jerry to leave it out of the paper."

Duke Barrows was editor and Jerry Webster the reporter for the Whiteside paper. Both were good friends. "They'll play ball," Rick agreed. "Well, young ladies, when is the big safari?"

Barby consulted her watch. "Right now. We'll dress and you can fly us over."

"Then right now means in an hour. Okay. We'll be ready."

Upstairs, Rick and Scotty washed up and changed into what Scotty called "sh.o.r.e-going clothes" that were only slightly less informal than their dungarees and T shirts. As they finished and sat down to wait for the girls, Rick picked up one of the radio units on the workbench. All were finished, although untested. A few final decorative touches remained for Barby's plastic headset, including setting in some rhinestones for her. It would look like any other plastic bauble when he finished.

"Let's get some fresh batteries while we're in town," Rick suggested.

"Then we can check these out tonight."

"Okay. And remind me to pick up a new mouthpiece for the lung Jan uses. She says the one that's on it now is too big and uncomfortable.

It hurts her mouth."

Jan had become proficient under water with only a few hours practice.

Rick had led the girls through the entire series of underwater maneuvers with the lungs, including practice in sharing one lung between them. He was satisfied that they both had a thorough understanding of team swimming and enough sense to stay out of at least the more obvious troubles novices can get into. He was content now to let them go off on their own, which they did fairly often.

After Rick's estimated hour the girls were ready--except that Barby had to make a phone call. She spent another fifteen minutes arranging a small get-together at a friend's home to introduce Jan to her chums.

"Now," she said brightly. "We're ready. Are you?"

Rick wisely refrained from comment.

Ten minutes later the four were in the Brants' car, en route to Barby's destination. Rick dropped the girls off and arranged to pick them up in two hours, then he turned the car toward town.

"Let's visit Duke and Jerry," he suggested.

Scotty looked at him. "Still bothered, aren't you?"

Rick shrugged. It was hard to pinpoint the way he felt. He tried to put it into words. "I've talked to the scientists, including Parnell Winston. None of them has ever heard of an ailment like the thing that struck the team scientists. Winston especially knows a lot, because he's studied the human brain extensively. He doesn't even know of anything similar."

Scotty knew all this because he had been present. But talking aloud helped to make things clearer, so he only commented, "And where does that leave us?"

"At the starting line. We haven't moved an inch forward. But at least, if medical history seems to have no record of any such cases, we can a.s.sume that something new and different caused the scientists to go off the beam."

"Yes, but if some enemy caused it, how was it done?"

"Glad you asked that," Rick answered gloomily. "Wish someone could answer. Anyway, we know why it was done--if it was done. It was to cause trouble with the project. That would be important enough for an enemy to go to a lot of trouble."

Scotty shook his head. "The thing that sticks in my craw is, how come only two of the scientists got hit? Why wasn't the same thing used on the others? If anything was used, that is."

Rick was bothered by the same point, and he had no answer--nor did Steve Ames, with whom they had discussed the problem.

To both boys, the puzzle was more than just an interesting problem to be solved. If some enemy really had penetrated the project and somehow caused disruption of the scientists' brains, then the people nearest and dearest to both of them were also in jeopardy. Spindrift now provided three out of five for the new project team.

Rick swung into the main street and into the public parking lot. The Whiteside _Morning Record_ was in the heart of town, only a block away. Next to the parking lot was a hardware store where Rick planned to buy batteries, and diagonally across the street was the Sports Center. Nothing in Whiteside was far from anything else; it was a typical small town.

It took only a moment to buy a box of batteries; they were the type used in hearing aids. Then the boys crossed the street to the Sports Center. Extra mouthpieces for the lungs were in stock. They chose one that seemed softer and smaller than the regulation models, then started for the newspaper.

Two doors away from the Sports Center was the town's only barbershop.

As they pa.s.sed, Scotty suddenly grabbed Rick's arm and said hurriedly, "Come back!" Quickly he led the way out of sight of the barbershop windows.

Rick looked at him curiously. "See something?"

Scotty's forehead wrinkled. "I think so. But it's so unlikely that I'm not sure. Rick, I thought I saw the barber from Washington--the one with the ma.s.sage machine!"

[Ill.u.s.tration: _Rick focused the monocular on the barbershop_]

Rick's mouth opened in astonishment. "You're kidding!"

Scotty shook his head. "I'm not. I said I wasn't sure. But I don't want to stand in front and look, because if it is the barber, he'd recognize us."