Minton's been on special assignment for some time. It's not easy to locate him." "Oh, I know about that," Ron said airily. "But I was supposed to see him today. You see, my mom--his sister that is--she was in a very bad accident...." He swallowed hard, wondering if he was being believed. The woman frowned. "Well, if it's an emergency, I suppose I could check with central control. If it's really important." "Oh, it's important, all right!" He said this with great conviction. "Very well, then." She picked up her telephone, and there was much transferring from party to party. Finally, she lowered the receiver, saying: "He's in the east wing. It's Security territory, so I'll have to see about a pass." It took another ten minutes for her to locate the authority she was seeking. A young man with crinkly hair and a grim expression came briskly to the desk, asked him a few questions, and then signed his name on a document. Ron put the paper into the pocket of his coveralls, and followed the man to a bank of private elevators. The man waved him inside one, and he couldn't resist a wide-eyed question. "Gosh, mister. Are you from the FBI?" The man couldn't conceal a small pleased grin. "That's right, son. Only you keep it a secret." "Sure," Ron said. When the door closed and the elevator ascended, he grinned too. Being twelve had its advantages sometimes. He got off the elevator, and a uniformed guard checked his paper and led him into an anteroom. "You wait here, son," he said, and left. Ron waited five minutes. When nothing happened, he tried an adjoining door. It was open. He stepped inside the next room, and saw that it was a bare room with nothing but a row of filing cabinets and an abandoned swivel chair with a definite list to port.He went to the files and peered at the designation cards. They read: PROJECT SCHOLAR. He shrugged, and tried to open the top file. It was locked. He tried the others, with no better luck. Then he heard the voices in the anteroom. For some reason, he sensed danger. He knew he shouldn't be in the file room, that if he were found his visit to Dr. Minton might come to a sudden end. He couldn't take the chance. He tiptoed to the front door of the