"So what can I do? Besides listen."

"Listening is very helpful, do not doubt it. It is an unimaginable pleasure just to be able to talk openly. But I have some very specific needs, too. I'm fighting on many fronts, Mr. Ramsey. . . ."

"Call me Catur, please. Or even Decatur, if that's too informal."

"Decatur. A nice name." The old man blinked slowly, summoning back his thoughts. "Many fronts. There is that group, allies of ours, who are literally under siege in South Africa. There are various plans the Brotherhood had already put into action which have to be monitored and in some cases covertly resisted. And most importantly, there is the constant struggle to find and aid those people I've already brought into the Grail network. And that's where you . . . and Ms. Pirofsky . . . come in."

"I don't understand."

Sellars fluted a sigh. "Perhaps when I tell you this, Mr. Ramsey, you will understand something of my frustration and weariness. I have been trying to locate and contact my volunteers within the system ever since I was first forced to abandon them in the Atascos' simulation world, but from the moment the Grail network was fully operational, I have found it impossible to get past the network's security. But I have told you a little bit about the operating system, haven't I? Its strange affinity for children? I discovered that if I bring the boy Cho-Cho online, at a certain point in the process, at a high enough level, the operating system will simply let him through. Not me, no matter how I disguise my intrusion—the operating system has always blocked me, sometimes quite painfully—but a real child will be allowed inside."

"Well, that's good, isn't it?"

"You do not see the whole problem, Mr. Ramsey. Decatur, excuse me. Imagine that you had a sealed box full of tiny beads, and a single thin needle you needed to push through the wall of the box so that it touched one particular bead, which could be anywhere in the container. How would you do that?"

"I. . . ." Ramsey frowned. "I wouldn't, I guess. Is it a trick question?"

"I wish it were. That's my problem—tracking my volunteers. Fortunately, it means that the Brotherhood hasn't been able to track them, either. The one I helped release, Paul Jonas, seems to have eluded them for quite some time."

"But you did make contact with them a couple of times, didn't you? You said so."

"Yes. I got Cho-Cho to the right spot. That was a little coup—I was quite proud of myself. Do you know how I did it? The operating system—this quasi-living neural network, or whatever it is—seemed to be fascinated with my volunteers. It paid special attention to them, and by carefully observing its actions, I could roughly track their whereabouts. Let me show you something."

Sellars gestured, and the jai alai game from South America that Ramsey had been half-watching disappeared. In its place was a strange, fish-eye view of masses of green growing things.

"That is my Garden, my place of meditation," Sellars said. "Or my tèarmunn, as I would name it in the language of my birth. Every source of knowledge I have is represented there, displayed as trees, moss, flowers, and so on. Thus, what you are looking at is not a garden at all, but the complete, up-to-the-moment picture of all my information.

"Or rather, what you see is how it looked a week ago. Do you see those dark fungal traces sprouting up through the soil? There, and there? And a large something below the surface there? That was the operating system. A knot like that, a node of activity, showed that a great deal of the system's effort was being expended there. Often—but by no means always—it meant the system was monitoring part of my volunteer task force. As you can see, they have split into several groups."

"So you can use a kid like Cho-Cho to get into the system. You can figure out approximately where your people are by the shape of the operating system." Ramsey squinted at the complex green shapes on the wallscreen. "So what's the problem?"

"That was a week ago. This is now."

The difference was striking, even to Ramsey. Sellars' garden appeared to have been hit by a killing frost—whole structures gone, others blackened and shriveled. He could not tell what any of it meant, but it was clear something devastating had happened.

"The operating system. It's . . . gone."

"Not gone, but vastly reduced, or perhaps withdrawn." Sellars briefly highlighted a few points in the now-barren garden. "It is now operating like a true machine, as if its advanced functions have been demolished. I can make no sense of it. Worse, there is no longer any correspondence that I can use to locate my people within the system. They are lost to me."

"I can see why you're upset. . . ."

"There is more. Have you noticed how quiet and sullen the boy Cho-Cho has been today? Last night, we had a very disturbing experience. Even though I could not locate any of my volunteers, I tried to get the boy online just to discover what I could about the current state of the network. We were both nearly killed."

"What?"

"The operating system no longer acts in its earlier manner, at least as far as allowing intrusions into the network. There are no more inexplicable exemptions for children—or for anything else. The security of the Grail network, still deadly dangerous for reasons I've never been able to understand, is now utterly seamless. Nothing gets in, nothing comes out."

Ramsey had to sit and think about this for a while. "So the people you brought into the system are just . . . lost?"

"At the moment, yes. Completely. It is a very helpless feeling, Decatur. And that is where you come in."

"Me? Somehow I don't think a lawsuit is going to do much good."

Sellars' smile was less than hearty. "We are far beyond that stage, I'm afraid. I know you cannot completely understand my Garden, but trust me—time is short. Things are changing quickly. The entire Grail system is extremely unstable, in danger of collapse."

"But that's good, isn't it?"

"No. Not while there are children whose health is still wrapped up with this network. Not while people whom I brought into this war of mine are somehow trapped inside the thing. You've already seen one child die while we all waited helplessly. Do you want to make that same call to the parents of Salome Fredericks?"

"No. Jesus, of course not. But what possible use can you make of me?"

"Because the more I think of it, the more I realize that Olga Pirofsky may be our only hope. I have tried everything I can imagine to penetrate the system. I have tried tapping into my volunteers' own connections from the outside world, but although I can access them, there is still something that prevents me from tracing that link through the security system and into the network."

"So what the hell is Olga Pirofsky going to do? She's just a nice woman who hears voices."

"If she succeeds in her goal, it could be that she can do much. What we need at this point is something she might be able to provide—access to Felix Jongleur's own system."

Ramsey blinked. "Felix Jongleur's. . . ."

"If there is anyone who can bypass the network security, it will be the man who created the thing. If there is anything that can get us onto the Grail network, and thus back in touch with the people I have put in mortal danger, it will be found in Jongleur's system."

"But Olga. . . ? You don't need some nice middle-aged lady, you need some kind of—Christ, I don't know, a tactical unit! Commandos! This is a job for Major Sorensen, not a kiddie-show host."

"No, it is precisely a job for someone like Olga. Major Sorensen will be very useful to us, I promise you—we will need all his security expertise. But no one is going to swim to Jongleur's island by night, bypass the attentions of his private army, and climb up the outside of his corporate tower like some kind of spy hero. The only way someone will get into the enemy's stronghold is if he . . . or she . . . is invited in."