narily dangerous.

Luis sat there a while longer, but he had recalled everything that
would come out of the original stimulus. If he wanted more, he would
have to dig up other facts or make further contacts. But at least it
wasn't hopeless--even without the police, he had learned this much.

He went over the room thoroughly once more. If there was anything
hidden, he couldn't find it.

He crossed the court to Luise's dwelling. She was gone, but there was
a note on the table. He picked it up and read it:

_Dear man with no name:_

_I suppose you were here last night, though I'm so mixed up I can't be
sure; there's so little of memory or reality to base anything on. I
wanted to talk to you before I left but I guess, like me, you're out
investigating._

_There's always a danger that neither of us will like what we find. What
if I'm married to another person and the same with you? Suppose ... but
there are countless suppositions--these are the risks we take. It's
intolerable not to know who I am, especially since the knowledge is so
close. But of course you know that._

_Anyway I'll be out most of the day. I discovered a psychologist who
specializes in restoring memory; you can see the possibilities in
that. I went there yesterday and have an appointment again today. It's
nice of him, considering that I have no money, but he says I'm more or
less an experimental subject. I can't tell you when I'll be back but
it won't be late._

_Luise._

He crumpled the note in his hand. Memory expert. Her psychologist was
that--in reverse. Yesterday he had taken a day out of her life, and
that was why Luise hadn't recognized him and might not a second time.

* * * * *

He leaned against the table. After a moment, he straightened out the
note. A second reading didn't help. There it was, if he could make
sense from it.

Luise and himself, probably in that order. There was no proof, but it
seemed likely that she had been retrogressed first, since she had been
discovered first.

There was also Dorn Starret, the criminal from Ceres who had hidden
the gun in the Shelter that he, Luis, had been found in. And there was
now a fourth person: the psychologist who specialized in depriving
retrogression victims of what few memories they had left.

Luis grimaced. Here was information which, if the police would act on
it properly ... but it was no use, they wouldn't. Any solution which
came out of this w