A shock but Kooga had rehearsed the explanation.

"She was tired. She had worked hard and long and I wanted to avoid the possibility of risk. Nurses get accustomed to routine and tend to lose their fine edge by repetition. They take minor things for granted. Usually such carelessness is unimportant but, in this case-well, I dared not take the chance of an avoidable complication."

"Such as?"

"A change in temperature signaling a potential source of infection. A shift in the position of the patient's body. A stain on a dressing. The malfunction of a monitor." Kooga shrugged. "You know how it is."

Not from personal experience; those who served the Cyclan did not fail, but Zuber could assess the probability. Those subjected to the poison of emotion could never wholly be trusted. Not even Kooga, loyal as he seemed, could be above suspicion. Why had the nurse been sent so far? Why hadn't it been included in the report-his aides had discovered the move while making a thorough check. What had Kooga to hide?

Nothing, perhaps, and yet Zuber knew that the smallest scrap of data could have unsuspected importance. That to ignore it would be to betray a lack of efficiency.

He said, "Regarding the monitors-it seems you went to extreme lengths in order to obtain the most detailed information. Especially as revealed by the encephalograph."

"I assumed you would want me to obtain such data." Fear made Kooga curt. "If you wish it can be destroyed."

"It is complete?"

"Of course."

"Yet the same system of monitoring was not used throughout. A more sophisticated machine was introduced just after the nurse was removed."

"It may have been." Irritation edged the doctor's tone. Questions as to his conduct, even from the cyber, were unwelcome. "I worked on your behalf and you have said you are satisfied. Now, it seems, you question my professional integrity. I did what I did because I judged it should be done. The result justifies my decision."

"Of course. Did you find the print-outs interesting? Unusual in any way?"

"No." Kooga added, "I didn't study them. The data was for you alone."

A lie and Zuber knew it; no physician would have failed to check for possible deterioration in the cerebrum and no one of Kooga's experience would have failed to note the unusual pattern. Anger and fear had betrayed him and had marked the need to terminate his existence.

"I understand." Zuber nodded as if satisfied. "Just one other thing while we are on the subject and then you will be left in peace. To enjoy your reward," he added. "One you have richly deserved."

"Thank you. The point?"

"There was a slight commotion; a woman insisted on entering Cyber Avro's room. The receptionist recorded the incident. She was not alone."

"No."

"The details?"

A matter he had overlooked and Kooga cursed his forgetfulness. The receptionist had been too efficient-or had the power of the Cyclan cast its shadow before it? How many eyes had been watching him? Checking everything he had done?

"The woman was Mirza Annette Karroum," he said. "The man was Vaclav, Chief of the Guardians. They, that is she, wanted to question Cyber Avro. Naturally I didn't allow it."

"Question?"

"Yes, I don't know the details. I ordered them from the room immediately."

"One of the Karroum?"

"Yes, I-" Kooga hesitated. The cyber would know of the power held by the Karroum and the other big Families. On worlds such as Lychen such were not ordered as if they were inferiors. "She was stubborn," he admitted. "I had to explain how useless it was to talk to the patient, to get any response. Once she understood that she left."

"Thank you." Zuber rose, extending his hand, the broad ring on his finger gleaming in the light. "I think that will be all."

* * *

The administrator was a woman, no longer young, her hair long, graying, dressed in a bun which accentuated the sharpness of her features. A face now marked with the stamp of anxiety.

"I don't understand it," she said. "Doctor Kooga seemed perfectly well when I last saw him. A little tired, perhaps, but that's all. Then, an hour later when I had to go to his room to ask his decision on a matter, he was dead. Naturally I sent for you immediately."

"Why?" Vaclav met her eyes. "Did you suspect a crime?"

The answer lay in the room where Kooga lay sprawled on the floor, one hand extended to where the carpet had been drawn back. Vaclav knelt beside him, sniffing at the pale lips, lifting the lids to examine the glazed eyes. No scent of familiar poisons or traces of familiar drugs but that meant nothing. The room itself told him more: the furnishings were ripped, paintings thrown down from their hangings, the entire place looked as if it had been searched.

By whom?

Vaclav looked at Kooga's extended hand. It lay clenched and, as he forced open the fingers, he found a scrap of paper clutched in them. A fragment from a larger piece which bore the tracery of lines. The paper itself was from a photocopying machine.

The administrator waited outside. To her Vaclav said, "Whom did the doctor see this morning? Cyber Zuber? Anyone else, I mean after his interview with Zuber? No? I see. What time did you see him? The exact time, please. Good. And it was an hour later you called on him?"

"About that, yes."

"And found him like this? Has he been touched? No? Good. That will be all."

"But-" She looked past Vaclav at the body sprawled on the floor.

"Leave him for now." Vaclav stepped back into the room. "I'll let you know when he can be removed."

A man dead, trying to reach for something, but why? The room gave the answer, one Vaclav sensed with his years of experience and, standing, looking around, he read the message it conveyed. Kooga, tired, seeking his bed, entering the room and finding it bearing the marks of an obvious search. If he had hidden anything in it he would have gone immediately to it-and those who had set the trap would have what they wanted.

Vaclav stepped again toward the body. Kooga had died but he bore no sign of an obvious wound. Poison was the logical instrument but how had it been administered? As Vaclav looked at the drawn-back carpet, the reaching hand, he saw the minute spot of reddish brown on the pad of the palm. Something which could have been dirt or a fragment of dried blood.

Straightening he looked at the room. A recorder lay where it had been thrown, tapes scattered around it. He examined them, remembering the one Kooga had played, the gained response of Avro with its whispered directions on where Dumarest could be found. Had he told the cyber of Dumarest? Was the tape still here?

He searched them, reading titles, halting as he found one with a single word. Ardestum-an obvious anagram. He played it, listening again to the whispering voice, then rewound it to hit the erase. If Zuber had killed Kooga to get his hidden papers he wouldn't get this. A small revenge but better than none-the power of the Cyclan would give the cyber immunity of punishment for his crime.

Outside, Vaclav threw the tape into a bin with items waiting for incineration. An assistant collected it as he reached the end of the passage, making his way to Kooga's office. As he entered Zuber turned toward him from where he stood at the desk.

"Chief Vaclav. It is good to meet you. I assume you are here to investigate Doctor Kooga's demise. A regrettable loss. You knew him well?"

"No."

"But you had met him. With the Lady Mirza Annette Karroum. You were together in Cyber Avro's room. May I ask why?"

Vaclav said, curtly, "She was unhappy with my report on the death of the previous head of her House. She wanted confirmation from Kooga as to the cause."

"And chose the room of a sick man to conduct her investigation?"