Steve held up his hand. "Hold it a minute. We'll get to that point in its proper turn."

Hartson Brant picked up the threads again. "We will assume for the moment that Steve's statement is correct, and that hiding Dr. Morrison was a preventative. I know Steve doesn't accept this fully, but we must use assumptions since we have no facts of consequence. If the assumption is correct, then we have to accept the fact that enemy agents are interested in the project. And we must also accept that they have some means of creating a mental block by remote control."

Rick stole a glance at Parnell Winston. The cyberneticist was sitting quietly, his bushy eyebrows knitted thoughtfully. Winston hadn't said a word.

Hartson Brant paced the floor as he went on. "We now have one slight bit of additional information that supports the theory of enemy interference. You are all aware of what happened to Dr. Marks this morning. He is in the hands of Constantine Chavez, who is in touch with the physicians in charge of the other team members. Dr. Chavez is of the opinion that Dr. Marks' mental injury was caused by physical means, although he cannot say how. He also states, although there seems to be no connection with the mental injury, that Marks was drugged."

Parnell Winston spoke for the first time. "Steve, if Chavez says Marks was drugged, we can accept it. How could it have happened?"

Steve spread his hands in a gesture that seemed to Rick to indicate embarrassment. "I have gone over every step of the journey with Tom Dodd. The answer is yes. Thanks to Marks' bullheadedness, and a clerical error, there was an opportunity for an enemy to get at him on the train."

The scientists waited, obviously wanting to know more. Steve elaborated. "Marks was covered by one of our men at every moment, even while he was working at the Bureau of Standards, and while he was at his apartment. The agents ate and drank the same things. Nothing has happened to them. However, when the reservations were made for the train trip, Marks specified that he wanted a bedroom. He got one, and Tom Dodd got the one next door."

"Why did Marks want to travel by train overnight, anyway?" Scotty demanded. "That's getting from Washington to Newark the hard way."

"I told you he was stubborn," Steve reminded. "Tom tried to talk him out of it but failed. After all, the project team members aren't prisoners. We can't use force, and we can't order them to do anything. Marks wanted to go overnight by train because he always traveled that way, he said. He insisted."

Dr. Morrison said sadly, "I assure you that he is not an easy man to get along with sometimes. But we must remember that he is—or was—an extremely competent scientist. Competence like his can be forgiven many eccentricities."