“But something a little different happened.”

“Yes, sir. My robots spotted someone not on the watch lists. My robot could ID him, but the rental unit could not, even though it was a security model. I later found out that the ID database in my personal robot had been altered. My robot’s list is a copy of the standard CIP list-and I’ve confirmed that the standard list has been altered as well.”

“Someone inserted a false ID profile into the CIP database?”

“Yes, sir. And I might add that the real identity of the person in question is not in the file. I’m not sure if that’s because he was deleted by the same people who inserted the false idea, or if the real identity’s file was culled in a routine file purge.”

“I see. And who is someone pretending to be?”

“Dr. Barnsell Ardosa, of the University of Hades Center for Terraforming.” Justen pulled hardcopies of the original images out of his carry bag. “This is the university’s ID image,” he said, handing them over. “And this is the surveillance image.”

Kresh took the two images, and let out a low whistle. “Norlan Fiyle. The rustbacking Settler in the Grieg case. The mustache hides some of him, but it’s not exactly an impenetrable disguise.”

Justen Devray looked at Kresh in impressed surprised. “The face looked familiar to me,” he said, “but it took me hours and hours, and every image-manipulating trick in the book, before I was able to place him.”

“You’ve been a working cop since then,” Kresh said, still looking thoughtfully at the images of Fiyle/Ardosa. “There have been a lot of other faces for you to deal with, on a lot of other cases. Fiyle-I never met him, of course, but he was part of the last case I ever worked. I can still shut my eyes and see every page of the case file. Did you ever meet him?”

“No, sir. I wasn’t in on that interrogation. Maybe I should have been.”

“Don’t be absurd,” Kresh said, his voice gentler than his words. “You were running a big part of a vital case. He was picked up on the far side of the Great Bay from where you were working, and he gave up the one piece of information we needed almost at once. Why in the devil should you have chased after him? Just in case he popped up five years later?”

“I suppose you’re right. But even so, right now I wish I had gone to get a look at him.”

“Hmmmph. Water under the bridge. Let’s get back to the point. You’ve had a chance to check the files, and maybe my memory isn’t as infallible as I’d like it to be. Give me a quick summary on friend Fiyle.”

“Norlan Fiyle. A Settler, but not any part of the terraforming team. It seems he took advantage of a few loopholes in the immigration laws to come to Inferno, presumably in hopes of making some quick and easy money. He was working with a gang of rustbackers, helping to smuggle illegal New Law robots off the island of Purgatory. He got caught just about the time Grieg was murdered. He made a deal, all charges dropped and freedom to leave the planet, in exchange for the name of a Governor’s Ranger who was on the take. The Ranger in question was Emoch Huthwitz, who was killed the same night as the governor, while on guard duty. It looked a lot like an opportunist revenge murder. It was one of the leads that got us looking at the possible involvement of rustbacking gangs in the case.”

Kresh shook his head. “I needed the refresher. Sometimes I forget how intricate that case was. But Fiyle was supposed to leave the planet. Why didn’t he?”

“I don’t know, sir. But the fact that he was supposed to leave does offer an innocent explanation why he wasn’t in the current CIP identity files. We don’t maintain current files on people who are off-planet. As to why he didn’t leave, my hunch is that he hadn’t been any more honest on his home planet. Maybe he was on the run from the police there when he got to Inferno. Maybe he thought it over, and figured he wouldn’t stay out of jail for long back home, if he went there. So he offered his services to the SSS here. A freelance informant. They’d set him up and protect him in exchange for information.”

“And maybe Cinta Melloy didn’t make it a voluntary arrangement, if she had the goods on him back home,” Kresh said. “It’s all speculation, but it sounds plausible. But so far all you’ve got is an old smuggler walking into Settlertown and living under an assumed name. There has to be more.”

“Yes, sir, there is,” said Justen. “I left the Sapper to watch for Ardosa and trail him while I went back to CIP headquarters with the other robot and started trying to find out who Ardosa really was. Well, Ardosa came out of Settlertown not long after we left-and led Sapper 323 straight to Ironhead headquarters, and a nice little chat with Jadelo Gildern.”

Kresh raised his eyebrows. “The head of Ironhead security, no less. But how do you know he talked to Gildern?”

“I was coming to that. The robot on the front door wouldn’t let him in until Ardosa told him something, and the robot checked it with someone inside. The Sapper caught it all on long-range imagery and audio. I’ve watched it a dozen times by now. What Ardosa-or rather, Fiyle-said was ‘Listen, you tin box. Tell Gildern it’s Ardosa with new info on Lentrall. He’ll see me then.’ And sure enough, in went Fiyle.”

“Not the most discreet of double agents, is he?” said Kresh. “Waltzing up to the front door of two different establishments, talking on the street like that.”

“Unless that was deliberate,” said Justen. “He’s working two sides. Why not three? Maybe he was deliberately trying to attract our attention.”

“This does get deep pretty fast,” Kresh said. “We could spend the whole morning spinning theories. I wonder if Gildern or Melloy know Fiyle is working two sides of the game.”

“It takes a lot of nerve to spy for the Ironheads and the Settlers,” Justen said. “It would only take just a bit more to spy for both of them without the left hand knowing what the right was doing. I don’t think he’s told either side.”

“What makes you say that?” Kresh asked.

“Nothing solid. Just what we know of his temperament from the Grieg case, the way he carried himself as he headed toward Settlertown, and going into Ironhead HQ.”

“All interesting,” Kresh said. “All very, very interesting. You have a watch on Fiyle, I assume?”

“The works. Full team trailing him, taps on his hyperwave, research into his background, everything.”

“Good. And one other thing. Lentrall is about to arrive here, any minute. When he leaves, I don’t want him to be alone.”

“I was about to suggest that, sir. I would advise a full security detail, human and robotic.” After the Grieg case, they had learned not to trust a purely robotic security detail, or a purely human one. Far better to use both, rather than be exposed to the weaknesses of either working alone.

“Very good,” he said. “If it were remotely practical, I’d tell you to keep them out of Lentrall’s sight, but as it is-have them keep out of his way as much as possible. He’s not the sort of person who’s going to take kindly to a security detail. More than likely, he’ll blow his top, sooner or later. Let’s try and make it later.”

“Yes, sir.”

“Thank you for your good work, Justen,” Kresh said as he stood up. “You’ve told me something important. Lentrall has dropped a major situation on me, and I’ll need all the information I get in order to make a proper decision about it.”

Justen took the hint. He stood himself, took back the images from Kresh, and put them in his carry bag as he made ready to leave. Kresh offered Justen his hand, and Justen shook it as Kresh gave him an encouraging pat on the shoulder. “I’m glad to have been of help, sir.”

“You have been. You have been,” Kresh said as he led the younger man out into the hallway. “Perhaps more than you know.” Kresh’s robot activated the door control to Kresh’s office, and preceded his master through the entrance. “Thanks once again, Commander,” said Kresh.