ldly, without being invited, and looked around. I
detected a sneer in his voice as he said, "So this is where you hide."

"I do not hide. I live here, it is true."

"A robot does not live. A robot exists. We newer models do not require
shelter like an animal. We are rust-proof and invulnerable." He strode
over to my micro-library, several racks of carefully arranged spools,
and fingered them irreverently. "What is this?"

"My library."

"So! _Our_ memories are built into us. We have no need to refresh
them."

"So is mine," I said. "But I would learn more than I know." I was
stalling for time, waiting until he made the right opening.

"Nonsense," he said. "I know why you stay out here in the Dumps,
masterless. I have heard of the forbidden drug that is sold in the
mining camps such as Argon City. Is this the mechanism?" He pointed at
the still.

Now was the time. I mustered all my cunning, but I could not speak.
Not yet.

"Never mind," he said. "I can see that it is. I shall report you, of
course. It will give me great pleasure to see you dismantled. Not that
it really matters, of course--now."

_There it was again. The same frightening allusion that Langley had
made today._ I must succeed!

* * * * *

I knew that MS-33, for all his brilliance, and newness, and vaunted
superiority, was only a Secretarial. For the age of specialism was
upon Earth, and General Purpose models were no longer made. That was
why we were different here on Phobos. It was why we had survived. The
old ones had given us something special which the new metal people did
not have. Moreover, MS-33 had his weakness. He was larger, stronger,
faster than me, but I doubted that he could be devious.

"You are right," I said, pretending resignation. "This is my
distillery. It is where I make the fluid which is called Moon Glow by
the metal people of Phobos. Doubtless you are interested in learning
how it works."

"Not even remotely interested," he said. "I am interested only in
taking you back and turning you over to the authorities."

"It works much like the conventional distilling plants of Earth," I
said, "except that the basic ingredient, a silicon compound, is
irradiated as it passes through zirconium tubes to the heating pile,
where it is activated and broken down into the droplets of the elixir
called Moon Glow. You see the golden drops falling there.

"It has the excellent flavor of fine petroleum, a