ife."

The big man blinked at Manelli. "Harry Scott was the new approach. We
were too close to the problem. We needed a nonmedical outsider to take a
look, to tell us what we were missing. So Harry Scott walked into the
problem, and then abruptly lost contact with us. We finally track him
down and find him gone, out of touch with reality, on the same wretched
road that all the others went. With Harry, it's paranoia. He's being
persecuted; he has the whole world against him, but most important--the
factor we don't dare overlook--_he's no longer working on the problem_."

Manelli shifted uneasily. "I suppose that's right."

"Of course it's right!" Dr. Webber's eyes flashed. "Harry found
something in those statistics. Something about the data, or the case
histories; or something Harry Scott himself dug up opened a door for him
to go through, a door that none of us ever dreamed existed. We don't
know what he found on the other side of that door. Oh, we know what he
_thinks_ he found, all this garbage about people that look normal but
walk through walls when nobody's looking, who think around corners
instead of in straight-line logic. But what he _really_ found there, we
don't have any way of telling. We just know that whatever he _really_
found is something new, something unsuspected; something so dangerous it
can drive an intelligent man into the wildest delusions of paranoid
persecution."

A new light appeared in Dr. Manelli's eyes as he faced the other doctor.
"Wait a minute," he said softly. "The integrator is an _experimental_
instrument, too."

Dr. Webber smiled slyly. "Now you're beginning to think," he said.

"But you'll see only what Scott himself believes. And _he_ thinks his
story is true."

"Then we'll have to break his story."

"_Break_ it?"

"Certainly. For some reason, this delusion of persecution is far safer
for Harry Scott than facing what he really found out. What we've got to
do is to make this delusion _less_ safe than the truth."

The room was silent for a long moment. Manelli looked up, his fingers
trembling. "Let's hear it."

"It's very simple. Up to now, Harry Scott has had _delusions_ of
persecution. But now we're _really_ going to persecute Harry Scott, as
he's never been persecuted before."

3

At first he thought he was at the bottom of a deep well and he lay quite
still, his eyes clamped shut, wondering where he was and how he could
possibly have gotten there. He could