Appreciatively he gazed around at the half-acre of moss-gray carpeting, green-tinted by the light sifting through the walls of Martian copper-glass, and at the vistas of beautiful domed gardens framed by a dozen arches. But most of all, the robots won his delighted approval.

He could see at once that they had been developed to an amazingly high state of perfection. How, he wondered again, had this been done without his knowledge? Was Scrib right? Was he slipping? Gnawing at the doubt, he watched the robots moving efficiently about, pushing patients in wheelchairs, carrying trays, guiding newcomers, performing janitorial duties tirelessly, promptly, and best of all, silently.

Harper was enthralled. He'd staff his offices with them. Hang the expense! There'd be no more of that obnoxious personal friction and proneness to error that was always deviling the most carefully trained office staffs! He'd investigate and find out the exact potentialities of these robots while here, and then go home and introduce them into the field of business. He'd show them whether he was slipping! Briskly he went over to the desk.

He was immediately confronted with a sample of that human obstinacy that was slowly driving him mad. Machines, he sighed to himself. Wonderful silent machines! For a woman was arguing stridently with the desk clerk who, poor man, was a high strung fellow human instead of a robot. Harper watched him shrinking and turning pale lavender in the stress of the argument.

"A nurse!" shouted the woman. "I want a nurse! A real woman! For what you charge, you should be able to give me a television star if I want one! I won't have another of those damnable robots in my room, do you hear?"

No one within the confines of the huge lobby could have helped hearing. The clerk flinched visibly. "Now, Mrs. Jacobsen," he soothed. "You know the hotel is staffed entirely with robots. They're much more expensive, really, than human employees, but so much more efficient, you know. Admit it, they give excellent service, don't they, now?" Toothily he smiled at the enraged woman.

"That's just it!" Mrs. Jacobsen glared. "The service is too good. I might just as well have a set of push buttons in the room. I want someone to hear what I say! I want to be able to change my mind once in awhile!"

Harper snorted. "Wants someone she can devil," he diagnosed. "Someone she can get a kick out of ordering around." With vast contempt he stepped to the desk beside her and peremptorily rapped for the clerk.

"One moment, sir," begged that harassed individual. "Just one moment, please." He turned back to the woman.

But she had turned her glare on Harper. "You could at least be civil enough to wait your turn!"