person to want it. In this respect it was like the receptor that had gotten him into trouble. But as he put the small parts together, he felt a certain loneliness. A man Hoddan's age needs to have some girl admire him from time to time. If Nedda had been sitting cross-legged before him, listening raptly while he explained, Hoddan would probably have been perfectly happy. But she wasn't. It wasn't likely she ever would be. Hoddan scowled.

Inside of an hour he'd made a hand-sized, five-watt, wave-guide projector of waves of eccentric form. In the beam of that projector, air became ionized. Air became a high-resistance conductor comparable to nichrome wire, when and where the projector sent its microwaves.

He was wrapping tape about the pistol grip when a servant brought him a scribbled note. It had been handed in at the Embassy gate by a woman who fled after leaving it. It looked like Nedda's handwriting. It read like Nedda's phrasing. It appeared to have been written by somebody in a highly emotional state. But it wasn't quite—not absolutely—convincing.

He went to find the ambassador. He handed over the note. The ambassador read it and raised his eyebrows.

"Well?"

"It could be authentic," admitted Hoddan.

"In other words," said the ambassador, "you are not sure that it is a booby trap—an invitation to a date with the police?"

"I'm not sure," said Hoddan. "I think I'd better bite. If I have any illusions left after this morning, I'd better find it out. I thought Nedda liked me quite a lot."

"I make no comment," observed the ambassador. "Can I help you in any way?"

"I have to leave the Embassy," said Hoddan, "and there's a practically solid line of police outside the walls. Could I borrow some old clothes, a few pillows, and a length of rope?"

Half an hour later a rope uncoiled itself at the very darkest outside corner of the Embassy wall. It dangled down to the ground. This was at the rear of the Embassy enclosure. The night was bright with stars, and the city's towers glittered with many lights. But here there was almost complete blackness and that silence of a city which is sometimes so companionable.

The rope remained hanging from the wall. No light reached the ground there. The tiny crescent of Walden's farthest moon cast an insufficient glow. Nothing 

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