"Now, what's to prevent us from getting Ore to blow the notes for us? Then we can make a recording of it and use it to open the gate."

Anana shook her head. "It doesn't work that way. It's been tried before, it's so obvious. But there's something in the machinery in the Horn that adds an element missing in recordings."

"I was afraid of that," he said. "But I had to ask. Look, Anana. Urthona must have planted gates all over this place. We've probably passed dozens without knowing it because they are inside the walls. Logically, many if not most of them will be quick emergency routes from one place in this building to another. So Urthona could outsmart anyone who was close on his heels.

"But there have to be a few which would gate him to another world. Only to be used in cases of direst emergency. One of them is the gate at the end of the corridor next door. I think ..."

"Not necessarily," Anana said. "For all we know, it leads to the control room or some other place in the palace."

"No. In that case, the sensors would have shown Ore that the Englishman was in the palace."

"No. Urthona might have set up places without sensors where he could hide if an enemy had possession of the control room."

"I'm the Number One trickster, but sometimes I think you sneaky Lords put me to shame. Okay. Just a minute. Let me ask Ore a question." He went to the cube. The Lord, looking very suspicious, said, "What are you two up to now?"

"Nothing that won't help you," Kickaha said, grinning. "We just don't want you to get a chance to get the drop on us. Tell me. Did the sensor displays in the control room indicate that there were hidden auxiliary sensor systems?"

"Why would you want to know?"

"Damn it!" Kickaha said. "You're wasting our time. Remember, I have to spring you if only to get the Horn."

Hesitantly, Ore said. "Yes, there are hidden auxiliary systems. It took me some time to find them. Actually, I wasn't looking for them. I discovered them while I was looking for something else. I checked them out and noted that they were in rooms not covered by the main system. But since nobody was using them, I assumed that no one was in them. It was inconceivable that anyone in a room where they were wouldn't be trying to find out where I was."

"I hope your memory's good. Where are they?"

"My memory is superb," Ore said stiffly. "I am not one of you sub-beings."

Kickaha grimaced. The Lords had the most sensitive and gangrenous egos he'd ever encountered. A good thing for him, though. He'd never have survived his conflicts with them if they hadn't always used part of their minds to feed their own egos. They were never really capable of one hundred percent mental concentration.

Well, he, Kickaha, had a big ego, too. But a healthy one.

The Lord remembered only a few of the locations of the auxiliary sensor systems. He couldn't be blamed for that since there were so many. But he was able to give Kickaha directions to three of them. He also gave him some instructions on how to operate them.

Just to make sure he hadn't been neglecting another source of information, Kickaha asked robots One and Two about the sensors. They were aware of only that in the control room. Urthona had not trusted them with any more data than he thought necessary for his comfort and protection.

Kickaha thought that if he had been master of this palace, he would have installed a safety measure in the robots. When asked certain questions, they would have refused to answer them. Or pretended that they didn't know.

Which, now that he thought about it, might be just what was happening. But they'd given him data that Urthona might not want his enemies to have. So possibly, they were not lying.

He took One with him, leaving Anana to keep an eye on her uncle. It wasn't likely that he'd be going any place or doing anything worth noticing. But you never knew.

The hidden system console was in a room behind a wall in a much larger room on the tenth floor. Lacking the codeword to gate through, he and One tore part of the wall down. He turned on the console and, with One's aid, checked out the entire building. It was done swiftly, the glowing diagrams of the rooms flashing by too swiftly on the screen for Kickaha to see anything but a blur. But a computer in One's body sorted them out.

When the operation was complete, One said, "There are one hundred and ten chambers which the sensors do not monitor."

Kickaha groaned and said. "You mean we'd have to get into all of them to make sure no living being is in one of them?"

"That is one method."

"What's the other?"

"This system can monitor the control chamber. It's controlled by that switch there." One pointed. "That also enables the operator to hook into the control-room sensories. These can be used to look into the one hundred and ten chambers. The man named Ore did not know that. The switch is not on the panel in the control room however. It is under the panel and labeled as an energy generator control. Only the master knew about it."

"Then how did you come to know about it?"

"I learned about it while I was scanning the displays here."

"Then why didn't you tell me?"

"You didn't ask me."

Kickaha repressed another groan. The robots were so smart yet so dumb.

"Connect this system with the control room's."

"Yes, master."

One strode ponderously to the control board and turned a switch marked, in Lord letters: HEAT. Heat for what? Obviously, it was so designated to make any unauthorized operator ignore it. Immediately, lights began pulsing here and there, a switch turned by itself, and one of the large video screens above the panel came to life.

Kickaha looked into the room from a unit apparently high on the wall and pointing downward. It was directed toward the central chair in a row of five or six before the wide panel. In this sat a man with his back to Kickaha.

For a second he thought that it must be the Englishman who had helped Ore. But this man was bigger than the one described by Ore, and his hair was not brown but yellow.

He was looking at a video screen just above him. It showed Kickaha and the robot behind him, looking at the man.

The operator rose with a howl of fury, spun out of his chair, and shook his fist at the unit receiving his image.

He was Urthona.

THE LORD WAS clad only in a ragged skin bound around his waist. A longitudinal depression, the scan from the axe wound, ran down the center of his chest. His hair fell over his shoulders to his nipples. His skin was smeared with the oily dirt of his world, and a bump on his forehead indicated a hard contact with some harder object. Moreover, his nose had been broken.

Kickaha was shocked for a few seconds, then he went into action. He ran toward the switch to turn it off. Urthona's voice screamed through the video. "One! Kill him! Kill him!"

"Kill who, master?" One said calmly.

"You blithering metal idiot! That man! Kickaha!"

Kickaha turned the switch and whirled. The robot was advancing on him, its arms out, fingers half-clenched.

Kickaha drew his knife. Shockingly, Urthona's voice came out of the robot's unmoving lips. "I see you, you leblabbiy! I'm going to kill you!"

For a second Kickaha didn't know what was happening. Then illumination came. Urthona had switched on a transceiver inside the robot's body and was speaking through it. Probably, he was also watching his victim-to-be through One's eyes.

That had one advantage for Kickaha. As long as Urthona was watching the conflict from the control room, he wasn't gating here.

Kickaha leaped toward the robot, stopped, jumped back, slashed with his knife with no purpose but to test the speed of One's reaction. The robot made no attempt to parry with his arm or grab the knife, however. He continued walking toward Kickaha.