"And, Mr. Lawrence," Black said softly. "About the surgery—don't worry, you'll be okay. It's chiefly psychosomatic, you know. In a couple of weeks you'll be fine. You couldn't have picked a better doctor than Summers."

Lawrence felt better already, a result of his talk with this brash young man.

"Thank you, Black," he said. "Thank you very much. But, look—as a psi, can you assure me that my idea is not slightly lunatic? I've begun to doubt that it will work."

Lunatic.... Mentally unsound.... Luna.... Moon.... The crescent of the moon in the noonday sky. Yes, he could go now.... The transit was brief.... No! He must go back, must bear the consciousness that was Martin Black back from this airless, cratered sphere! Panic seized him. He fled.

Lawrence was astounded to see the young man at the other end of the visiphone seemingly fall into a deep sleep, his head down suddenly on the desk.

"Black," he cried, "are you all right? Shall I send a doctor to—"

" No! "

The young man raised his head. "I'm quite all right, Mr. Lawrence, though slightly exhausted. Didn't sleep well last night. Sorry! I'll ring you after I contact Dick Joyce."

"No names, please," Lawrence said. "I go into the hospital this afternoon, Black. You'd better not contact me there. The doctor said no business while I'm there. From now on you're on your own."

Your own! He was drifting! He fought it....