Osborne finished reading, then looked up.

"All right, Ms. Foo. What else have you found out?"

"I've broken some of his codes. I had a piece of luck, getting into a basic rape-and-plunder program he'd written to attack other people's programs, and I've managed to use it against a few of his own. I've unlocked a file of passwords with notes on where they came from. And I've learned a few of his tricks. But it's the tip of the iceberg."

She waved a hand at the silent metal brains in the room.

"What I haven't gotten across to anyone is just what this is. This is the most devious electronic weapon ever devised. It's armored like a battleship. It has to be; there's a lot of very slick programs out there that grab an invader and hang on like a terrier. If they ever got this far Kluge could deflect them. But usually they never even knew they'd been burgled. Kluge'd come in like a cruise missile, low and fast and twisty. And he'd route his attack through a dozen cut-offs.

"He had a lot of advantages. Big systems these days are heavily protected. People use passwords and very sophisti­cated codes. But Kluge helped invent most of them. You need a damn good lock to keep out a locksmith. He helped install a lot of the major systems. He left informants behind, hidden in the software. If the codes were changed, the computer itself would send the information to a safe system that Kluge could tap later. It's like you buy the biggest, meanest, best-trained watchdog you can. And that night, the guy who trained the dog comes in, pats him on the head, and robs you blind."

There was a lot more in that vein. I'm afraid that when Lisa began talking about computers, ninety percent of my head shut off.

"I'd like to know something, Osborne," Lisa said.

"What would that be?"

"What is my status here? Am I supposed to be solving your crime for you, or just trying to get this system back to where a competent user can deal with it?"

Osborne thought it over.

"What worries me," she added, "is that I'm poking around in a lot of restricted data banks. I'm worried about somebody knocking on the door and handcuffing me. You ought to be worried, too. Some of these agencies wouldn't like a homi­cide cop looking into their affairs."

Osborne bridled at that. Maybe that's what she intended.

"What do I have to do?" he snarled. "Beg you to stay?"

"No. I just want your authorization. You don't have to put it in writing. Just say you're behind me."

"Look. As far as L.A. County and the State of California are concerned, this house doesn't exist. There is no lot here. It doesn't appear in the assessor's records. This place is in a legal limbo. If anybody can authorize you to use this stuff, it's me, because I believe a murder was committed in it. So you just keep doing what you've been doing."

"That's not much of a commitment," she mused.

"It's all you're going to get. Now, what else have you got?"

She turned to her keyboard and typed for a while. Pretty soon a printer started, and Lisa leaned back. I glanced at her screen. It said: osculate posterior-p. I remembered that oscu­late meant kiss. Well, these people have their own language. Lisa looked up at me and grinned.

"Not you," she said, quietly. "Him."

I hadn't the faintest notion of what she was talking about.

Osborne got his printout and was ready to leave. Again, he couldn't resist turning at the door for final orders.

"If you find anything to indicate he didn't commit suicide, let me know."

"Okay. He didn't commit suicide."

Osborne didn't understand for a moment.

"I want proof."

"Well, I have it, but you probably can't use it. He didn't write that ridiculous suicide note."

"How do you know that?"

"I knew that my first day here. I had the computer list the program. Then I compared it to Kluge's style. No way he could have written it. It's tighter'n a bug's ass. Not a spare line in it. Kluge didn't pick his alias for nothing. You know what it means?"

"Clever," I said.

"Literally. But it means… a Rube Goldberg device.

Something overly complex. Something that works, but for the wrong reason. You 'kluge around' bugs in a program. It's the hacker's vaseline."

"So?" Osborne wanted to know.

"So Kluge's programs were really crocked. They were full of bells and whistles he never bothered to clean out. He was a genius, and his programs worked, but you wonder why they did. Routines so bletcherous they'd make your skin crawl. Real crufty bagbiters. But good programming's so rare, even his diddles were better than most people's super-moby hacks."

I suspect Osborne understood about as much of that as I did.

"So you base your opinion on his programming style."

"Yeah. Unfortunately, it's gonna be ten years or so before that's admissible in court, like graphology or fingerprints. But if you know anything about programming you can look at it and see it. Somebody else wrote that suicide note-somebody damn good, by the way. That program called up his last will and testament as a sub-routine. And he definitely did write that. It's got his fingerprints all over it. He spent the last five years spying on the neighbors as a hobby. He tapped into military records, school records, work records, tax files and bank accounts. And he turned every telephone for three blocks into a listening device. He was one hell of a snoop."

"Did he mention anywhere why he did that?" Osborne asked.

"I think he was more than half crazy. Possibly he was suicidal. He sure wasn't doing himself any good with all those pills he took. But he was preparing himself for death, and Victor was the only one he found worthy of leaving it all to. I'd have believed he committed suicide if not for that note. But he didn't write it. I'll swear to that."

We eventually got rid of him, and I went home to fix the dinner. Lisa joined me when it was ready. Once more she had a huge appetite.

I fixed lemonade and we sat on my small patio and watched evening gather around us.

I woke up in the middle of the night, sweating. I sat up, thinking it out, and I didn't like my conclusions. So I put on my robe and slippers and went over to Kluge's.

The front door was open again. I knocked anyway. Lisa stuck her head around the corner.

"Victor? Is something wrong?"

"I'm not sure," I said. "May I come in?"

She gestured, and I followed her into the living room. An open can of Pepsi sat beside her console. Her eyes were red as she sat on her bench.

"What's up?" she said, and yawned.

"You should be asleep, for one thing," I said.

She shrugged, and nodded.

"Yeah. I can't seem to get in the right phase. Just now I'm in day mode. But Victor, I'm used to working odd hours, and long hours, and you didn't come over here to lecture me about that, did you?"

"No. You say Kluge was murdered."

"He didn't write his suicide note. That seems to leave murder.''

"I was wondering why someone would kill him. He never left the house, so it was for something he did here with his computers. And now you're… well, I don't know what you're doing, frankly, but you seem to be poking into the same things. Isn't there a danger the same people will come after you?"

"People?" She raised an eyebrow.

I felt helpless. My fears were not well-formed enough to make sense.

"I don't know… you mentioned agencies…"

"You notice how impressed Osborne was with that? You think there's some kind of conspiracy Kluge tumbled to, or you think the CIA killed him because he found out too much about something, or-"

"I don't know, Lisa. But I'm worried the same thing could happen to you." ¦

Surprisingly, she smiled at me.

"Thank you so much, Victor. I wasn't going to admit it to Osborne, but I've been worried about that, too."