The doctor said, "I know."

He meant that he was aware that Lane was a private detective. What he did not know was that Lane was working on a case for a federal government agency. CACO -- Coordinating Authority for Cathedric Organizations -- was short of competent help. It had hired, after suitable security checks, a number of civilian agents. CACO would have hired only the best, of course, and Lane was among these.

Lane hesitated and then said, "I keep getting these phone calls."

The doctor said nothing. Lane said, "There's nobody at the other end. He, or she, hangs up just as soon as I pick the phone up."

"You think the skinburn and the phone calls are related?"

"I don't know. But I'm putting all unusual phenomena into one box. The calls started a week after I'd had a final talk with a lady who'd been chasing me and wouldn't quit. She has a Ph.D. in bioelectronics and is a big shot in the astronautics industry. She's brilliant, charming, and witty, when she wants to be, but very plain in face and plane in body and very nasty when frustrated. And so..."

He was, he realized, talking too much about someone who worked in a top-secret field. Moreover, why would Mills want to hear the sad story of Dr. Sue Brackwell's unrequited love for Kent Lane, private eye? She had been hung up on him for some obscure psychological reason and, in her more rational moments, had admitted that they could never make it as man and wife, or even as man and lover, for more than a month, if that. But she was not, outside of the laboratory, always rational, and she would not take no from her own good sense or from him. Not until he had gotten downright vicious over the phone two years ago.

Three weeks ago, she had called him again. But she had said nothing to disturb him. After about five minutes of light chitchat about this and that, including reports on their health, she had said good-bye, making it sound like an ave atque vale, and had hung up. Perhaps she had wanted to find out for herself if the sound of his voice still thrilled her. Who knew?

Lane became aware that the doctor was waiting for him to finish the sentence. He said, "The thing is, these phone calls occurred at first when I was under the skylight and making love. So I moved the bed to a corner where nobody could possibly see it from the upper stories of the Parmenter Building next door.

"After that, the phone started ringing whenever I took a woman into my apartment, even if it was just for a cup of coffee. It'd be ringing before I'd get the door open, and it'd ring at approximately three-minute intervals thereafter. I changed my phone number twice, but it didn't do any good. And if I went to the woman's apartment instead, her phone started ringing."

"You think this lady scientist is making these calls?"

"Never! It's not her style. It must be a coincidence that the calls started so soon after our final conversation."

"Did your women also hear the phone?"

Lane smiled and said, "Audiohallucinations? No. They heard the phone ringing, too. One of them solved the problem by tearing her phone out. But I solved mine by putting in a phone jack and disconnecting the phone when I had in mind another sort of connection."

"That's all very interesting, but I fail to see what it has to do with your skin problem."

"Phone calls aside," Lane said, "could the tingling, the peeling and blistering, and the mild erotic reaction be psychosomatic?"

"I'm not qualified to say," Mills said. "I can, however, give you the name of a doctor whose specialty is recommending various specialists."

Lane looked at his wristwatch. Rhoda should be about done with her hairdresser. He said, "So far, I'm convinced I need a dermatologist, not a shrink. I was told you're the best skin doctor in Washington and perhaps the best on the East Coast."

"The world, actually," Dr. Mills said. "I'm sorry. I can do nothing for you at this time. But I do hope you'll inform me of new developments. I've never had such a puzzling, and, therefore, interesting, case."

Lane used the phone in the ground-floor lobby to call his fiancee's hairdresser. He was told that Rhoda had just left but that she would pick him up across the street from the doctor's building.

He got out of the building just in time to see Rhoda drive his MG around the corner, through a stoplight, and into the path of a pickup truck. Rhoda, thrown out by the impact (she was careless about using her safety belt), landed in front of a Cadillac. Despite its locked brakes, it slid on over her stomach.

Lane had seen much as an adviser in Vietnam and as a member of the San Francisco and Brooklyn police departments. He thought he was tough, but the violent and bloody deaths of Leona and Rhoda within four months was too much. He stood motionless, noting only that the tingling was getting wanner and spreading over his body. There was no erotic reaction, or, if there were, he was too numb to feel it. He stood there until a policeman got the nearest doctor, who happened to be Mills, to come out and look at him. Mills gave Lane a mild sedative, and the cop sent him home in a taxi. But Lane was at the morgue an hour later, identified Rhoda, and then went to the precinct station to answer some questions.

He went home prepared to drink himself to sleep, but he found two CACO agents, Daniels and Lyons, waiting for him. They seemed to have known about Rhoda's death almost as quickly as he, and so he knew that they had been shadowing him or Rhoda. He answered some of their questions and then told them that the idea that Leona and Rhoda might be spies was not worth a second's consideration. Besides, if they were working for SKIZO, or some other outfit, why would SKIZO, or whoever, kill their own agents?

"Or did CACO kill them?" Lane said.

The two looked at him as if he were unspeakably stupid.

"All right," Lane said. "But there's absolutely no evidence to indicate that their deaths were caused by anything but pure accident. I know it's quite a coincidence..."

Daniels said, "CACO had both under surveillance, of course. But CACO saw nothing significant in the two women's behavior. However, that in itself is suspicious, you know. Negative evidence demands a positive inquiry."

"That maxim demands the investigation of the entire world," Lane said.

"Nevertheless," Lyons said, "SKIZO must've spotted you by now. They'd have to be blind not to. Why in hell don't you stay out from under sunlamps?"

"It's a skin problem," Lane said. "As you must know, since you've undoubtedly bugged Dr. Mills's office."

"Yeah, we know," Daniels said. "Frankly, Lane, we got two tough alternatives to consider. Either you're going psycho, or else SKIZO is on to you. Either way..."

"You're thinking in two-valued terms only," Lane said. "Have you considered that a third party, one with no connection at all with SKIZO, has entered the picture?"

Daniels cracked his huge knuckles and said, "Like who?"

"Like whom, you mean. How would I know? But you'll have to admit that it's not only possible but highly probable."

Daniels stood up. Lyons jumped up. Daniels said, "We don't have to admit anything. Come along with us, Lane."

If CACO thought he was lying, CACO would see to it that he was never seen again. CACO was mistaken about him, of course, but CACO, like doctors, buried mistakes.

On leaving the apartment building, Lane immediately felt the warm tingling on his face and hands and, a few seconds later, the spreading of the warmth to his crotch. He forgot about that a moment later when Daniels shoved him as he started to get into the back seat of the CACO automobile. He turned and said, "Keep your dirty hands off me, Daniels! Push me, and I may just walk off. You might have to shoot me to stop me, and you wouldn't want to do that in broad daylight, would you?"