businesses were closed, even in the Waste, while the mourning rituals went on. Whatever repercussions would come from the assassination, they would not occur this day. Still, Thorn wore the veil when she went out, because it gave her a feeling of invisibility.
The magister’s apartment was very quiet and motionless when she let herself in. She checked on the plants and emptied the pail in order to give her presence the appearance of legitimacy. She then went into the magister’s bedroom, ostensibly to check the freezer, but really to look around, for she had only been in there the one time. She studied the art-encrusted walls, the shaving mirror supported by mythical beasts, the armoire full of clothes that had once been fine but now were shabby and outmoded. As she was about to leave she spotted a large box—a hexagonal column about three feet tall—on a table in a corner. It was clearly an offworld artifact because it was made of wood. Many sorts of wood, actually: the surface was an inlaid honeycomb design. But there were no drawers, no cabinets, no way inside at all. Thorn immediately realized that it must be a puzzle box—and she wanted to get inside.
She felt all around it for sliding panels, levers, or springs, but could not find any, so she brought over a lamp to study it. The surface was a parquet of hexagons, but the colors were not arranged in a regular pattern. Most tiles were made from a blond-colored wood and a reddish wood, interrupted at irregular intervals by hexagons of chocolate, caramel, and black. It gave her the strong impression of a code or diagram, but she could not imagine what sort.
It occurred to her that perhaps she was making this more complex than necessary, and the top might come off. So she tried to lift it—and indeed it shifted up, but only about an inch, enough to disengage the top row of hexagons from the ones below. In that position she found she could turn the lower rows. Apparently, it was like a cylinder padlock. Each row of hexagons was a tumbler that needed to be turned and aligned correctly for the box to open. She did not have the combination, but knowing the way Magister Pregaldin’s Vind mind worked, she felt sure that there would be some hint, some way to figure it out.
Once more she studied the honeycomb inlay. There were six rows. The top one was most regular—six blond hexagons followed by six red hexagons, repeating around the circumference of the box. The patterns became more colorful in the lower rows, but always included the repeating line of six blond hexagons. For a while she experimented with spinning the rows to see if she could hit on something randomly, but soon gave up. Instead, she fetched her slate from her backpack and photographed the box, shifting it on the table to get the back. When she was done, she found that the top would no longer lock down in its original position. The instant Magister Pregaldin saw it, he would know that she had raised it. It was evidently meant as a tamper detector, and she had set it off. Now she needed to solve the puzzle, or explain to him why she had been prowling his apartment looking for evidence.
She walked home preoccupied. The puzzle was clearly about sixes—six sides, six rows, six hexagons in a row. She needed to think of formulas that involved sixes. When she reached home she went to her room and started transferring the box’s pattern from the photos to a diagram so she could see it better. All that afternote she worked on it, trying to find algorithms that would produce the patterns she saw. Nothing seemed to work. The thought that she would fail, and have to confess to Magister Pregaldin, made her feeling of urgency grow. The anticipation of his disappointment and lost trust kept her up long after she should have pulled the curtains against the perpetual sun and gone to bed.
At about six hours forenote a strange dream came to her. She was standing before a tree whose trunk was a hexagonal pillar, and around it was twined a snake with Magister Pregaldin’s eyes. It looked at her mockingly, then took its tail in its mouth.
She woke with the dream vivid in her mind. Lying there thinking, she remembered a story he had told her, about some Capellan magister named Kekule, who had deduced the ringlike structure of benzene after dreaming of a snake. She smiled with the thought that she had just had Kekule’s dream.
Then she bounded out of bed and out her door, pounding down the spiral steps to the kitchen. Hunter and Maya were eating breakfast together when she erupted into the room.
“Hunter! Do you have any books on chemistry?” she said.
He regarded her as if she were demented. “Why?”
“I need to know about benzene!”
The two adults looked at each other, mystified. “I have an encyclopedia,” he said.
“Can I go borrow it?”
“No. I’ll find it for you. Now try to curb your enthusiasm for aromatic hydrocarbons till I’ve had my coffee.”
He sat there tormenting her for ten minutes till he was ready to go up to his office and find the book for her. She took the disk saying, “Thanks, you’re the best!” and flew upstairs with it. As soon as she found the entry on benzene her hunch was confirmed: it was a hexagonal ring of carbon atoms with hydrogens attached at the corners. By replacing hydrogens with different molecules you could create a bewildering variety of compounds.
So perhaps the formula she should have been looking for was not a mathematical one, but a chemical one. When she saw the diagrams for toluene, xylene, and mesitylene she began to see how it might work. Each compound was constructed from a benzene ring with methyl groups attached in different positions. Perhaps, then, each ring on the box represented a different compound and the objective was to somehow align the corners as they were shown in the diagrams. But which compounds?
Then the code of the inlaid woods came clear to her. The blond-colored hexagons were carbons, the red ones were hydrogens. The other colors probably stood for elements like nitrogen or oxygen. The chemical formulae were written right on the box for all to see.
After an hour of scribbling and looking up formulae, she was racing down the steps again with her solutions in her backpack. She grabbed a pastry from the kitchen and ate it on her way, praying that Magister Pregaldin would not have returned.
He had not. The apartment still seemed to be dozing in its emptiness. She went straight to the box. As she dialed each row to line up the corners properly, her excitement grew. When the last ring slid into place, a vertical crack appeared along one edge. The sides swung open on hinges to reveal compartments inside.
There were no gold or rubies, just papers. She took one from its slot and unfolded it. It was an intricate diagram composed of spidery lines connecting geometric shapes with numbers inside, as if to show relationships or pathways. There was no key, nor even a word written on it. The next one she looked at was all words, closely written to the very edges of the paper in a tiny, obsessive hand. In some places they seemed to be telling a surreal story about angels, magic papayas, and polar magnetism; in others they disintegrated into garbled nonsense. The next document was a map of sorts, with coastlines and roads inked in, and landmarks given allegorical names like Perfidy, Imbroglio, and Redemption Denied. The next was a complex chart of concentric circles divided into sections and labeled in an alphabet she had never seen before.
Either Magister Pregaldin was a madman or he was trying to keep track of something so secret that it had to be hidden under multiple layers of code. Thorn spread out each paper on the floor and took a picture of it, then returned it to its pigeonhole so she could puzzle over them at leisure. When she was done she closed the box and spun the rings to randomize them again. Now she could push the top back down and lock it in place.
She walked home a little disappointed, but feeling as if she had learned something about her tutor. There was an obsessive and paranoid quality about the papers that ill fitted the controlled and rational magister. Clearly, there were more layers to him than she had guessed.
When she got home, she trudged up the stairs to return the encyclopedia to Hunter. As she was raising her hand to knock on his office door, she heard a profane exclamation from within. Then Hunter came rocketing out. Without a glance at Thorn he shot down the stairs to the kitchen.
Thorn followed. He was brewing coffee and pacing. She sat on the steps and said, “What’s the matter?”
He glanced up, shook his head, then it boiled out: “One of the suspects I have been following was murdered last night.”
“Really?” So he
“It didn’t happen here,” he said irritably. “It was in Flaming Sword of Righteousness. Damn! We were days away from moving in on him. We had all the evidence to put him on trial before the Court of a Thousand Peoples. Now all that work has gone to waste.”
She watched him pour coffee, then said, “What would have happened if the Court found him guilty?”
“He would have been executed,” Hunter said. “There is not the slightest doubt. He was one of the worst. We’ve
