I yanked the wheel--whip! whap!--cutting an arc. I slammed past a tree, missing it by half an inch. I wiped her off the side of the car like a mailbag is clipped from the fast express by the catch-hook.

I heard a cry of "Whoof!" as her body hit the trunk of the tree. But as I regained the road and went racing on to safety, I saw in the rear view mirror that she had bounced off the tree, sprawled a bit, caught her balance, and was standing in the middle of the road, shaking her small but very dangerous fist at my tail license plate.

I didn't stop driving at one-ten until I was above Dayton again. Then I paused along the road to take stock.

Stock? What the h.e.l.l did I know, really?

I'd uncovered and confirmed the fact that there was some secret organization that had a program that included their own highway system, concealed within the confines of the United States. I was almost certain by this time that they had been the prime movers in the disappearance of Catherine and Dr. Thornd.y.k.e. They--

I suddenly re-lived the big crack-up.

Willingly now, no longer rejecting the memory, I followed my recollection as Catherine and I went along that highway at a happy pace.

With care I recalled every detail of Catherine, watching the road through my mind and eyes, how she'd mentioned the case of the missing spoke, and how I'd projected back to perceive that which I had not been conscious of.

Reminding myself that it was past, I went through it again, deliberately. The fallen limb that blocked the road, my own horror as the wheels. .h.i.t it. The struggle to regain control of the careening car.

As a man watching a motion picture, I watched the sky and the earth turn over and over, and I heard my voice mouthing wordless shouts of fear.

Catherine's cry of pain and fright came, and I listened as my mind reconstructed it this time without wincing. Then the final crash, the horrid wave of pain and the sear of the flash-fire. I went through my own horror and self condemnation, and my concern over Catherine. I didn't shut if off. I waded through it.

Now I remembered something else.

Something that any normal, sensible mind would reject as an hallucination. Beyond any shadow of a doubt there had been no time for a man to rig a block and tackle on a tree above a burning automobile in time to get the trapped victims out alive. And even more certain it was that no normal man of fifty would have had enough strength to lift a car by its front b.u.mper while his son made a rush into the flames.

That tackle had been rigged and burned afterward. But who would reject a block and tackle in favor of an impossibly strong man? No, with the tackle in sight, the recollection of a man lifting that overturned automobile like a weight lifter pressing up a bar bell would be buried in any mind as a rank hallucination. Then one more item came driving home hard. So hard that I almost jumped when the idea crossed my mind.

Both Catherine and Dr. Thornd.y.k.e had been telepaths.

A telepath close to any member of his underground outfit would divine their purpose, come to know their organization, and begin to grasp the fundamentals of their program. Such a person would be dangerous.

On the other hand, an esper such as myself could be turned aside with bland remarks and a convincing att.i.tude. I knew that I had no way of telling lie from truth and that made my problem a lot more difficult.

From the facts that I did have, something smelled of overripe seafood.

Government and charities were pouring scads of dough into a joint called the Medical Research Center. To hear the scholars of medicine tell it, Mekstrom's Disease was about the last human frailty that hadn't been licked to a standstill. They boasted that if a victim of practically anything had enough life left in him to crawl to a telephone and use it, his life could be saved. They grafted well. I'd heard tales of things like fingers, and I know they were experimenting on hands, arms and legs with some success. But when it came to Mekstrom's they were stopped cold. Therefore the Medical Research Center received a walloping batch of money for that alone; all the money that used to go to the various heart, lung, spine and cancer funds. It added up well.

But the Medical Research Center seemed unaware that some group had solved their basic problem.

From the books I've read I am well aware of one of the fundamental principles of running an underground: _Keep it underground!_ The Commie menace in these United States might have won out in the middle of the century if they'd been able to stay a secret organization. So the Highways in Hiding could stay underground and be an efficient organization only until someone smoked them out.

That one was going to be me.

But I needed an aide-de-camp. Especially and specifically I needed a trained telepath, one who would listen to my tale and not instantly howl for the nut-hatch attendants. The F.B.I. were all trained investigators and they used esper-telepath teams all the time. One dug the joint while the other dug the inhabitant, which covered the situation to a faretheewell.

It would take time to come up with a possible helper. So I spent the next hour driving toward Chicago, and by the time I'd crossed the Ohio-Indiana line and hit Richmond, I had a plan laid out. I placed a call to New York and within a few minutes I was talking to Nurse Farrow.

I'll not go into detail because there was a lot of mish-mash that is not particularly interesting and a lot more that covered my tracks since I'd parted company with her on the steps of the hospital. I did not, of course, mention my real purpose over the telephone and Miss Farrow could not read my mind from New York.

The upshot of the deal was that I felt that I needed a nurse for a while, not that I was ill, but that I felt a bit woozy now and then because I hadn't learned to slow down. I worked too fast and too long and my condition was not up to it yet. This Miss Farrow allowed as being quite possible. I repeated my offer to pay her at the going prices for registered nurses with a one-month guarantee, paid in advance. That softened her quite a bit. Then I added that I'd videograph her a check large enough to cover the works plus a round trip ticket. She should come out and have a look, and if she weren't satisfied, she could return without digging into her own pocket. All she'd lose was one day, and it might be a bit of a vacation if she enjoyed flying in a jetliner at sixty thousand feet.

The acc.u.mulation of offers finally sold her and she agreed to arrange a leave of absence. She'd meet me in the morning of the day-after-tomorrow, at Central Airport in Chicago.

I videographed the check and then took off again, confident that I'd be able to sell her on the idea of being the telepath half of my amateur investigation team.

Then because I needed some direct information, I turned West and crossed the line into Indiana, heading toward Marion. So far I had a lot of well-placed suspicions, but until I was certain, I could do no more than postulate ideas. I had to know definitely how to identify Mekstrom's Disease, or at least the infected flesh. I have a fairly good recall; all I needed now was to have someone point to a Case and say flatly that this was a case of Mekstrom's Disease. Then I'd know whether what I'd seen in Ohio was actually one hundred percent Mekstrom.

VI

I walked into the front office with a lot of self-a.s.surance. The Medical Center was a big, rambling place with a lot of spread-out one- and two-story buildings that looked so much like "Hospital" that no one in the world would have mistaken them for anything else. The main building was by the road, the rest spread out behind as far as I could see; beyond my esper range even though the whole business was set in one of the clearest psi areas that I'd even been in.

I was only mildly worried about telepaths. In the first place, the only thing I had to hide was my conviction about a secret organization and how part of it functioned. In the second place, the chances were good that few, if any, telepaths were working there, if the case of Dr.

Thornd.y.k.e carried any weight. That there were some telepaths, I did not doubt, but these would not be among the high-powered help.

So I sailed in and faced the receptionist, who was a good-looking chemical-type blonde with a pale skin, lovely complexion and figure to match. She greeted me with a glacial calm and asked my business.

Brazenly I lied. "I'm a freelance writer and I'm looking for material."

"Have you an a.s.signment?" she asked without a trace of interest in the answer.

"Not this time. I'm strictly freelance. I like it better this way because I can write whatever I like."

Her glacial air melted a bit at the inference that my writing had not been in vain. "Where have you been published?" she asked.

I made a fast stab in the dark, aiming in a direction that looked safe.

"Last article was one on the latest archeological findings in a.s.syria.

Got my source material direct from the Oriental Inst.i.tute in Chicago."

"Too bad I missed it," she said, looking regretful. I had to grin, I'd carefully avoided giving the name of the publication and the supposed date. She went on, "I suppose you would not be happy with the usual press release?"

"Handouts contain material, all right, but they're so confounded trite and impersonal. People prefer to read anecdotes about the people rather than a listing of facts and figures."

She nodded at that. "Just a moment," she said. Then she addressed her telephone in a voice that I couldn't hear. When she finished, she smiled in a warmish-type manner as if to indicate that she'd gone all out in my behalf and that I'd be a heel to forget it. I nodded back and tried to match the tooth-paste-ad smile. Then the door opened and a man came in briskly.

He was a tall man, as straight as a ramrod, with a firm jaw and a close-clipped moustache. He had an air like a thin-man's Captain Bligh.

When he spoke, his voice was as clipped and precise as his moustache; in fact it was so precise that it seemed almost mechanical.

"I am Dr. Lyon Sprague," he clipped. "What may I do for you?"

"I'm Steve Cornell," I said. "I'm here after source material for a magazine article about Mekstrom's Disease. I'd prefer not to take my material from a handout."

"Do you hope to get more?" he demanded.

"I usually do. I've seen your handouts; I could get as much by taking last year's medical encyclopedia. Far too dry, too uninteresting, too impersonal."

"Just exactly what do you have in mind?"