CHAPTER TEN.

The Magic Bottle

"What wizardry is this?" Kestrel said as he climbed into the basket. "Balloons of lead cannot fly."

"There was no other choice," Astron said. "The ones of animal hide were all rendered useless by the minions of the wizards."

"It is not a matter of choice." Kestrel shook his head, still slightly dazed by what had happened. He looked over the edge of the gondola and saw the foundry yard shrink into toylike smallness. To the north, the camps of the two armies began to take shape into recognizable forms. The green wetness of the border marsh faded into the dark shadows of the setting sun. The low hills that led to the mines of Procolon grew closer with each pa.s.sing moment. The onsh.o.r.e breeze was pushing them in exactly the direction Kestrel wished them to go.

"It is not a matter of choice," he repeated. "The metal is too heavy to be borne aloft."

"The calculations shown to me by the alchemist were most interesting," Astron said. "It seems that the force carrying a balloon aloft is proportional to its volume. The greater the size of the sphere, the more it can lift."

"One need not study one of the five arts to understand such a fact," Kestrel said. "The key point is that the weight of the balloon itself must be included in the total."

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"And so it is," Astron said. "The ma.s.s of a balloon increases as the square of its radius while its volume and lifting power increase with the cube. Regardless of the density of the material, eventually there is a size large enough that it can be buoyed aloft."

Kestrel watched Astron pause, and what might be a smile of pleasure crossed the demon's face.

"I was fascinated by the concept of the vacuum," Astron continued. "And once 1 understood the principles, it was easy to perform the calculation for the lead sphere to which you directed my attention. Not only was it large enough to carry the skeletal structure inside which gave it shape but, as you can see, the three of us as well. I connected the gondola harness and the bottles of emptiness as soon as I saw that it was the last balloon remaining."

"It never was intended to be a balloon." Kestrel started to protest again, but then he stopped. Of course, he understood finally. For him, or any other man for that matter, connecting the vacuum bottles to the lead sphere would never have occurred as a possibility. But Astron was not blinded by the obvious. The demon merely thought it fortunate that the great ball was large enough to carry the three of them. There really was nothing of the five arts involved at all. Kestrel let out a deep breath and looked groundward. They were safely away and soon would be visiting the archimage.

But as he scanned the scene, a twinkle of light near the foundry wall caught Kestrel's eye. The feeling of relief immediately vanished. He studied the dancing pattern until he was sure, a scowl deepening on his face all the while. He pointed the light out to the others, and Astron nodded in confirmation. The cloud of imps that had tracked them to Menthos still pursued their flight. The buzzing sprites would have to be dealt with immediately, or they would have gained only a little respite from the wizards' wrath.

"Perhaps a magic bottle." Phoebe pointed at the trailing swarm. "Others of my council have spoken of them frequently. They use them to confine the imps that they

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summon through the flame. If we can capture them all before any returns to report where we are, then we will be cleanly away."

Kestrel stared out at the imps and pondered what Phoebe had said. His thoughts raced, pulling together the elements of another plan. "I think the wizard is right," he said after a moment. "We certainly have nothing to aid us in this empty gondola. And there are so many that we must find a way to deal with all of them at once. Let us land while there is still a bit of light and continue on the ground." He looked to the north, trying to judge their rate of motion. "If we are lucky, it will be far enough north that we quickly can reach a guild that I know of which specializes in the making of those magic jars. Perhaps, if we can intercept a single magician on the road, the odds might not be all that great."

Kestrel began constructing the details of what to do next, but stopped suddenly in midthought. The urgency of the moment was as great as ever, but somehow he still felt slightly puzzled. Despite the explanation about the balloon, something else was bothering him just under the surface of his thoughts.

Kestrel looked over at Phoebe and saw her smile. He put his arm around her waist to steady their stance as the basket began to rock in the quickening breeze. Phoebe did not protest. Instead she brought her pleasing softness to press against his side.

The full realization of what had happened thundered into focus. First the demon, and now the wizard. By his own cunning, Astron had managed to secure a means of transport over the border. Phoebe had joined him in the gondola. She alone would have been sufficient to see him the rest of the way to the archimage. There was absolutely no reason for them to pull him into the basket as it ascended. No reason at all-and yet they did.

Kestrel bargained with the baron whose crops had been damaged by the descent of the balloon and the metal sphere was traded for another horse and wagon.

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Soon the trio were on the main road leading to Ambrosia, the capital of Procolon.

While Kestrel guided the steed, Phoebe and Astron held torches aloft on the moonless night. The swarm of imps that tracked their progress would not be deterred by lack of light, and the increased speed was worth the illumination.

They were on the road but for a fraction of an hour when, as Kestrel had hoped, he caught the reflecting glint from a huge bottle on the shoulder of a cloaked traveller on the crest of the hill ahead.

As the wagon grew closer to the solitary figure, bent far to the side by the weight of his load, Kestrel smiled with satisfaction. The cloak was turned inside out, but his trained eye could make out the st.i.tching for the ring logos sewn to the other side. The man was a magician on the way back to the Cycloid Guild.

"Do you care for a ride, stranger?" Kestrel called out as the wagon drew abreast. "Your load looks heavy and you in the need of a rest."

The magician looked up with eyes dancing with suspicion. He was short and broad like a plowman, rather than shallow-shouldered like so many pract.i.tioners of the arts. "I can manage my own way," he said. "There is no a.s.sistance that I need."

"Not even if you carry an imp bottle?" Kestrel said. "I recognize the shape, straight sides of wide diameter and the narrow neck."

"What do you want?" the magician growled. He stopped and gently set the bottle on the ground. With his free hand he reached for a small dagger strapped to his belt.

"Why, to buy, of course." Kestrel pulled the wagon to a halt. He reached back under the covering and pulled out the wizard's robe Phoebe had abandoned for the dress of the countess. He pointed at the logos of flame. "We travel simply to avoid notice, just as you do. What is the price that you would set in your guild? We will pay double-double provided that it can be proven to be truly impregnable to the weaving of simple imps."

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The magician examined Kestrel critically and then Astron at his side. His eyes widened as Kestrel pulled away Astron's hood and he saw the fine network of scales.

Kestrel reached into his pocket and pulled out the remaining brandels of the Brythian wizards. With a flourish he flung them at the magician's feet. "Double the price, and three pieces of gold more for the trouble of the demonstration." He paused and smiled. "Just think how satisfied the other masters of the guild will be when you report to them that you have sold the bottle, not for the going price, but one and a half times that amount. Twice for you but only one and a half pa.s.sed on to the coffers of your guild. It would serve them right. You are the one who has had to toil in the blackness while they wined and dined in antic.i.p.ation of the fruits of your labor."

The magician looked down to his feet at the gold coins sparkling in the torchlight and grunted agreement. He stooped to his knees, rapidly retrieved the brandels, and thrust them into a purse next to his knife.

"That the bottle is a true prison of imps there can be no doubt," he said. "Magic rituals lead either to perfect results or else to nothing. And I have performed the last step myself-alone in a flat field when the moon was at nadir. I completed the square of numbers precisely in the order prescribed. The cymbals were struck thrice and then buried.

"And then the gla.s.s hummed of its own volition, sucking strength from the cosmic spheres and forming unbreakable crystal. It would not have rung unless my actions were the perfect last steps to a perfect ritual, producing a jar like the imps it will surround, one that will last eternally."

Kestrel watched the magician draw the dagger from his side and flip it over in his hand. Pommel first he crashed it down onto the side of the bottle, causing it to ring the seductive harmony of the finest bell. A second time he banged on the gla.s.s and then a third but the bottle wall held firm and did not shatter.

"See," the magician said. "That is no ordinary con-

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tainer but one that has been transformed by the skills of my craft. You cannot break it or its stopper. More proof than that surely you do not need."

"Nevertheless, this purchase is not one of little consequence," Kestrel said smoothly. "Surely you cannot deny us the a.s.surance of putting imps in the bottle and seeing that they cannot escape."

"Well, if I were the buyer, then perhaps I would want to know for sure that-" the magician began.

"Wait a moment," Astron said suddenly. "There is the matter of volition. Only the wizards that command the cloud that pursues can will them into what they know to be a trap."

"I have thought about that," Kestrel said. "We will just have to hope that the motives that drive your kind are not so different than those that push upon men." "What do you mean?"

"Are not imps noted for their curiosity?" Kestrel asked.

"Except for their vanity, it is the strongest of traits," Astron said. "They are always chattering that their abilities are the equal of the mightiest of djinns. But their inclinations have nothing to do with control of their will. There is no-"

"Such is what I have heard from the writings in the sagas," Kestrel said, "and such I will use. The only other thing I need is a lure. What is it that would attract them the most?"

"In the realm of men? Why, vinegar, I suppose. At least it is said you can catch more imps with it than with honey."