No image in the datastore showed anything to be worn-out or dirty, but the real world was full of dust and dirt, no matter how vigorously the maintenance robots worked to keep it all clean.

Caliban found the differences between idealized definitions and real-world imperfections deeply disturbing. The world he could see and touch seemed, somehow, less real than the idealized, hygienic facts and images stored deep inside his brain.

But it was more than buildings and the map, or even the datastore, that confused him.

It was human behavior he found most bewildering. When Caliban first approached a busy intersection, the datastore showed him a diagram of the correct procedure for crossing a street safely. But human pedestrians seemed to ignore all such rules, and common sense, for that matter. They walked wherever they pleased, leaving to the robots driving the groundcars to get out of the way.

Something else about the datastore was strange, even disturbing: There was a flavor of something close toemotion about much of its data. It was as if the opinions, the feelings, of whoever implanted the information into the datastore had been stored there as well.

He was growing to understand the datastore on something deeper than an intellectual level. He was learning thefeel of it, gaining a sense of how it worked, developing reflexes to help him use it in a more controlled and useful manner, keep it from spewing out knowledge he did not need. Humans had to learn to walk: That was one of many strange and needless facts the datastore had provided. Caliban was coming to realize that he had to learn how to know, and remember.

Confusion, muddle, dirt, inaccurate and useless information-those he could perhaps learn to accept. But it was far more troubling that, on many subjects, the datastore was utterly-and deliberately-silent. Information he most urgently wanted was not only missing butexcised, purposely removed. There was a distinct sensation of emptiness, of loss, that came to him when he reached for data that should have been there and it was not. There were carved-out voids inside the datastore.

There was much he desperately wanted to know, but there was one thing in particular, one thing that the store did not tell him, one thing that he most wanted to know:Why didn’t it tell him more? He knew it should have been able to do so. Why was all information on that place where the sign said Settlertown deleted from the map? Why had all meaningful references to robots been deleted? There was the greatest mystery. He was one, and yet he scarcely knew what one was. Why was the datastore silent on that of all subjects?

Humans he knew about. At his first sight of that woman he saw when he awoke, he had immediately known what a human was, the basics of their biology and culture. Later, when he glanced at an old man, or one of the rare children walking the street, he knew all basic generalities concerning those classes of person-their likely range of temperament, how it was best to address them, what they were and were not likely to do. A child might run and laugh, and adult was likely to walk more sedately, an elder might choose to move more slowly still.

But when he looked at another robot, one of his fellow beings, his datastore literally drew a blank. There was simply no information in his mind.

All he knew about robots came from his own observation. Yet his observations had afforded him little more than confusion.

The robots he saw-and he himself-appeared to be a cross between human and machine. That left any number of questions unclear. Were robots born and raised like humans? Were they instead manufactured, like all the other machines that received detailed discussion in the datastore? What was the place of the robot in the world? He knew the rights and privileges of humans-except as they pertained to robots-but he knew nothing at all of how robots fit in…

Yes, he could see what went on around him. But what he saw when he looked was disturbing, and baffling. Robots were everywhere-and everywhere, in every way, robots were subservient. They fetched and they carried, they walked behind the humans. They carried the humans’ loads, opened their doors, drove their cars. It was patently clear from every scrap of human and robot behavior that this was the accepted order of things. No one questioned it.

Except himself, of course.

Who was he? What was he? What was he doing here? What did it all mean?

He stood up and started walking again, not with any real aim in mind, but more because he could not bear to sit idle any longer. The need toknow, to understand who and what he was, was getting stronger all the time. There was always the chance that the answer, the solution, was just around the corner, waiting to be discovered.

He left the park and turned left, heading down the broad walkways of downtown.

HOURS went by, and still Caliban walked the streets, still deeply confused, uncertain what he was searching for. Anything could contain the clue, the answer, the explanation. A word from a passing human, a sign on a wall, the design of a building, might just stimulate his datastore to provide him with the answers he needed.

He stopped at a corner and looked across the street to the building opposite. Well, the sight of this particular building did not cause any torrent of facts to burst forth, but it was a strange-looking thing nonetheless, even considering the jarringly different architectural styles he had seen in the city. It was a muddle of domes, columns, arches, and cubes. Caliban could fathom no purpose whatsoever in it all.

“Out of my way, robot,” an imperious voice called out behind him. Caliban, lost in his consideration of things architectural, did not really register the voice. Suddenly a walking stick whacked down on his left shoulder.

Caliban spun around in astonishment to confront his attacker.

Incredible. Simply incredible. It was a tiny woman, slender, thin-boned, easily a full meter shorter than Caliban, clearly weaker and far more frail than he was. And yet she had deliberately and fearlessly ordered him about,’ instead of merely stepping around him, and then struck at him-using a weapon that could not possibly harm him. Why did she not fear him? Why did she have such obvious confidence that he would not respond by attackingher, when he could clearly do so quite effectively?

He stared at the woman for an infinite moment, too baffled to know what to do.

“Out of my way, robot! Are your ears shorting out?”

Caliban noticed a crowd of people and robots starting to form around him, one or two of the humans already betraying expressions of curiosity. It would clearly be less than prudent to remain here, or attempt to respond when he so clearly did not understand. He stepped aside for the lady and then picked a direction, any direction but the one she had taken, and started walking again. Enough of aimless wandering. He needed a plan. He needed knowledge.

And he needed safety. Clearly he did not know how to act like a robot. And the expressions, some of them hostile, he had seen on the faces of the passersby told him it was dangerous to be peculiar in any way.

No. He had to lie low, stay in the background. Safer to blend in, to pretend to be like the others.

Very well, then. Hewould blend in. He would observe the behavior he saw around himself, work determinedly to get lost among the endless sea of robots around him.

KRESH walked the streets of Hades at the same hour, though with more certain purpose. He found that it helped to clear his head and refocus his attention if he got away from his office, got away from the interrogation rooms and evidence labs, and stretched his legs under the dark blue skies of Inferno. There was a cool, dry wind blowing in from the western desert, and he found that it lifted his spirits. Donald 111 walked alongside him, the robot’ s shorter legs moving almost at double time in order to keep up with Alvar.