"Fine," I said, forgiving him curtly. The game was becoming amusing, trying to assert some superiority over him in a situation in which I couldn't help but be inferior, just as I imagined a genuine female diplomat might find herself forced to do. It almost let me forget the fact that though the path we followed was no more difficult than climbing a steep hill, this hill happened to be a thick tree branch that sloped away quickly on both sides, and if I were to stray from the path I would soon find myself hurtling downward. I dared not look and couldn't guess how far, but, perversely, couldn't resist trying to find out, either. "How many meters to the ground?"

"At this place I would say about a hundred and thirty, lady. But I'm really not sure. We don't measure it much. Once you're high enough to kill yourself falling, it really doesn't matter how far the ground is, does it? But I can tell you how much higher we have to go."

"How much?"

"About three hundred meters."

I gasped. I knew trees could grow to phenomenal heights on Treason-- hadn't I walked through Ku Kuei?-- but surely that high up the branches would be too weak and slender to support us. "Where are we going? Why so high?"

He laughed again, and this time he made no effort to conceal his enjoyment at my dislike of heights. Perhaps his way of getting back at me for the little trouble over names, and all the other slights that I had offered him and his country during our trip. "We're going," he said, "to the place where you're going to live. We thought you'd appreciate visiting the very top. Few outsiders ever have."

"I'm going to live at the top?"

"Well, we couldn't very well keep you with the other embassies, could we? They're men. We are somewhat civilized. So Mwabao Mawa has consented to take you in."

Our conversation was interrupted as he lightly trotted across a rope bridge, only occasionally using his hands. It looked easy, particularly since the tread of the bridge was wooden. But as I stepped on it, it swayed, and the farther out I got, the worse the swaying was. At the apex of each swing, I could see the trunks of the trees dropping down to a ground so distant that I couldn't be sure exactly where it was, in the heavy shade. At last I lost control and vomited, perhaps at the midpoint of the bridge. But then I felt better and made it across the bridge without further incident. And from then on, since I was already utterly disgraced, I made no further attempt to pretend not to feel fear-- and found that it therefore became easier to bear. My guide, Teacher, was more helpful, too, and led me at a slower pace. I was more than willing at times to lean on him.

And as we finally got to the level where the leaves grew, giant fans as much as two meters broad, the realization sank in that even if I found out what Nkumai was selling to the Ambassador for iron, it would do us little good. How could the landbound, plains-dwelling men of Mueller ever invade, let alone conquer, a people like this? The Nkumai would only pull up their rope ladders and sneer. Or drop deadly rocks. And the fear of heights would surely incapacitate other Muellers besides me. We may have schooled ourselves to separate fear from pain, but falling was another matter entirely. Besides, I had no way of knowing whether a drop from such heights might do more damage to a Mueller than his body could heal in time to save his life. Fish might as well launch a war against the birds as Mueller fight Nkumai here in their home trees.

Unless, of course, we found some way to train Mueller's soldiers to deal with heights. Perhaps they could practice on artificial platforms, or in the tall trees of Ku Kuei. I might have pursued this idea further, if I hadn't been constantly distracted by the need to pick a footing that wouldn't plunge me headlong to the earth.

We finally walked gingerly along a narrow branch to a rather involved house-- though in fact I would have considered it simple back in Mueller. Teacher spoke softly, but penetratingly, saying, "From the earth to the air."

"And to the nest, Teacher. Come in," and the husky but beautiful voice of Mwabao Mawa drew us into the house.

The house was basically five platforms, each one not much different under foot from those I had already rested on, though two of them were quite a bit larger. However, they had roofs of leaves, and a rather complicated system of gathering all the roofwater into barrels in the corners of the rooms.

If they could be called rooms. Each platform was a separate room. And I could detect no hint of a wall anywhere. Only curtains of brightly colored cloth hanging from the roofline to the floor. Breezes opened the walls easily.

I chose to stand in the center of the platform.

Mwahao Mawa was, in a way, disappointing. She should have been beautiful, from her voice, but she was not-- at least not by any standard of beauty I have ever known-- not even by Nkumai standards. But she was tall, and her face, however unlovely, was expressive and lively. When I say tall, the word does not convey: in Nkumai, nearly everyone is at least as tall as I am now, and in Mueller I am much above average. At that time, of course, I was not yet at my full height, and since among the Nkumai, Mwabao Mawa was towering, I saw her as a giant. Yet she moved gracefully, and I didn't feel intimidated. I felt, in fact, protected.

"Teacher, whom have you brought me?"

"She won't give me a name," Teacher said. "A gentleman, it appears, does not ask a lady."

"I'm the emissary from Bird," I said, trying to sound impressive without sounding pompous, "and to another lady I will tell my name." By then, of course, I had chosen a new name, and from then on throughout my stay in Nkumai, I was Lark. It was the closest I could come to Lanik and still be plausible as a woman from Bird.

"Lark," Mwabao Mawa said, making the name sound musical. "Come in."

I thought I already was.

"In here," she said, instantly trying to soothe my confusion. "And you, Teacher, can go."

He turned and left, trotting easily along the narrow branch that had so frightened me. I noticed that he obeyed as if Mwabao Mawa had great authority, and it occurred to me that perhaps a womanly disguise was not the handicap here that it had been for me in Allison.

I followed Mwabao Mawa through the curtain she had entered from. There was no path-- just a space about a meter and a half across to the next room. Miss the jump, and meet the earth. Not exactly a record-setting leap-- but competitive jumping in Mueller offers no further penalty for missing the goal than the scorn of the observers.

This time the wall-curtams were subdued and darker, and the floor was, thank heaven, not one uninterrupted plane. It sank in two steps to a large center arena, which was liberally sprinkled with cushions. When I stepped down, I found that my eyes were willing to believe that I was surrounded by real walls, and I relaxed.

"Go ahead and sit," she said. "This is the room where we relax. Where we sleep at night. I'm sure Teacher showed off all the way up here-- but we're not immune to fear of heights. Everyone sleeps in a room like this. We don't like the thought of rolling off in the middle of a dream."

She laughed, a rich, low laugh, but I didn't join in. I just lay back and let my body tremble, releasing the stored-up tension of the climb.

"My name is Mwabao Mawa," she said. "And I should tell you who I am. You'll doubtless hear stories about me. There are rumors that I have been the king's mistress, and I do nothing to discourage them, since it gives me a great deal of petty power. There are also rumors that I am a murderess-- and those are even more helpful. The truth is, of course, that I'm nothing but a consummate hostess and a great singer of songs. Perhaps the greatest who ever lived in a land of singers. I'm also vain," she said, smiling. "But I believe that true humility consists of recognizing the truth about yourself."