"I think I know where their stupid door is," she murmured, wheeling her chair away from the drafting table to her desktop screen and calling up a world map. "I just can't believe no one's noticed before now."

Like all the information on the gate, she had the location where the gate was in geosynchronous...o...b..t over the Earth's equator. She found the point and zoomed in. "It's so simple. Pittsburgh is on Elfhome because the gate projects the veil effect down through the Earth, where the magnetic core bends it, kind of like a prism bends light, thus. .h.i.tting Pittsburgh on the other side of the planet."

Only partially under the gate was a tiny island surrounded by ocean. She laughed. "Of all the dumb luck, a few more feet and their gate would have been totally in open water."

Pony peered at the island for several minutes before saying, "I don't understand. How can this open to Onihida, and this," he pointed to the other side of the world, "open to Elfhome?"

"That's the simple part. The Earth core is acting as a lens."

"Pardon?"

She closed the incriminating map and opened a scratch file. "Look, here's Earth with the core in the center. This side is the China Sea, and the other side, up here, is Pittsburgh. The gate orbits over the sea. The veil effect comes down a cylindrical shape, but the core acts like a lens. That means the veil is 'flipped.' " Seeing Pony's blank look, "You see things because light comes down and reflects off it. So if you have a tree, the light comes from the sun, hits the trees, and reflects to your eye."

He nodded. "Yes, I know this."

"But if you hold a gla.s.s lens up between you and the tree, the light is bent by the lens. The top of the tree is bent to the bottom, and the bottom is bent to the top, so the image is flipped."

Pony pointed to the tree. "Onihida." And tapped the upside-down image. "Elfhome."

"Yes. That simple. For twenty years, every Shutdown and Startup, that tropical island has been going to Onihida and back, and no one has noticed."

"Or noticed and the oni killed them."

"Yes, that too."

Pony pointed then to the gate in orbit. "Whatever you do-build the oni a gate or not-means little while that exists. That is the true prison door hanging open."

The carpenters tried to quit after dinner, but she tracked Riki down in the ocean of sawdust with shoals of ma.s.sive timbers and littered with the flotsam of cut ends.

"Tell them that they can't leave," she said.

"They've been working for like ten hours."

"They can work until they drop," Tinker growled. "Tell them to get back to work."

"They're tired."

"I don't care! If I'm going to meet Tomtom's deadline, then everyone everyone is going to have to work until they drop." is going to have to work until they drop."

"Be reasonable."

"Your people started this. I'm just going to finish it. Tell them to go back to work or I'll take a crowbar to them."

Riki winced. "Okay, okay, I'll get them back to work."

Only Tomtom's appearance at midnight kept the carpenters from revolting. The carpenters would jerk to a stop, bow low, and get waved back to work, which they did with stunning enthusiasm. No, no-no slackers here. Tinker shut files on her desktop as he closed in on her office.

"It looks nearly complete." Tomtom motioned to the ma.s.sive circle of wood taking form.

"The frame work is getting there," Tinker said. "It's still a long way to go on this gate. Once we finish here, the carpenters can start work on the second gate. The frame itself will be identical, so the crew will need less guidance-I need Riki here with me."

"Hanno." Tomtom c.o.c.ked his head. "Second gate?"

Tinker picked up evidence A. "Well, you've got enough material here for two gates, maybe three. I just a.s.sumed that you were building more than one-since the gate size is limited by the roof."

"A second gate," Tomtom said slowly.

"I haven't had a chance to look over the area." Tinker indicated the buildings around them. "I recommend you keep the two gates as far apart as possible; there might be possible interference between the two. Besides, it would prevent bottleneck."

"Bottleneck?"

"Traffic jams." Tinker turned to Riki as he arrived from the other side of the warehouse. "Riki, can you explain 'bottleneck' to him?"

Riki looked puzzled, but launched into Oni, pushing his hands together to ill.u.s.trate two forces colliding together. Tomtom's reply made Riki jerk around to stare at her. "A second gate?"

"Doh!" she said.

Riki looked at her in blank confusion.

"The framework for a second gate might go faster." She ignored Riki to focus on Tomtom. "But the rest of it will take the same amount of time, and I won't be able to start it until after this one is done. The schematics will need to be tailored to the location and orientation and various other deciding factors."

"Riki can not do them?" Tomtom said.

Tinker shook her head. "No more than he can do this one."

Tomtom turned to Riki for verification.

Riki looked at her strangely. "No. I can't. I'm still not grasping how the gate works. I have no clue what the next step will even be."

Tomtom accepted the truth. "Fine, we will have a second gate, on the other side of the compound."

The carpenter foreman came up to grovel and beg.

Tomtom laughed, showing sharp cat teeth. "As eager as you are, I can not have you slave-driving my people. It would reflect poorly on me. Everyone quits for the night. Even you."

Twenty days left.

Just stay focused, Tinker told herself but found she eyed the clock often as the numbers jumped through the hours of the day at despairing speed.

Chiyo appeared at the workshop late in the morning, with head high and hard stares at anyone glancing at her. Of the mating, there was no outward sign. The kitsune, however, radiated hostility like a steel blast furnace. The looks she gave Tinker shifted Pony from nearly invisible behind Tinker to between the two females. Unfortunately, he could do nothing about Chiyo's illusions; since the kitsune no longer needed to keep her mental abilities secret, she began torturing Tinker with them.

"Does she have to be here?" Tinker asked Riki later after reacting to the third giant illusionary spider.

"She's the only one besides me and Tomtom that speaks English, Elvish, and Oni."

"Fine." Tinker resolved herself to factoring numbers, and occasional remembrances of a nasty brush with a steel spinner-anyone that could do spiders that creepy had to be scared of them. "I've done some research. Normally you'd lay down ceramic tiles onto a backer board, but we can't do this here. In s.p.a.ce they used these brackets. We're going to have to modify the brackets, since they were designed to connect to the framing with these connectors." Tinker showed him the hooks, and then tossed them over her shoulder. "Can't use those."

There was a yelp behind her, which she ignored.

"I want a wooden mounting plate made, then holes drilled into the brackets here, here, and here." Tinker marked the points. "Then we got these cool plastic bolts here, which were actually part of the shielding. Fasten the brackets to the mounting plate, but first, have the carpenters figure out how to attach the plate to the framing. I'm thinking to cut grooves-" she did a quick sketch to ill.u.s.trate "-and slide them in and attach a piece of molding to lock them in. We can't use nails, but they should be used to that. The end result needs to have the tiles separated by no more than an eighth of an inch, but not much less since we have to allow for heat expansion."

Riki took out a handheld and jotted down notes. "Okay."

"Once we get the mounting plate designed, we need to run the power cables, so have them moved into the workshop. Remind the carpenters that we're going to be running power to the tiles up through this point in the bracket."

Riki made a face and scribbled more notes.

"Also we need the station for the tiles set up eventually." Tinker picked up the specially made ceramic tile. "Once I get the circuits designed, we can start masking them. You know, if your goons had held off just five or six years, my father would have done all this work himself on a Home Chip Lab."

If she had more than twenty days she could translate the entire thing down to integrated circuit level, shrinking the whole process down to something the size of...a wedding ring. That thought put shivers down her spine.

"Things were right for us to make a move," Riki said simply.

"Keep riding herd on the carpenters," Tinker turned back to her computer, trying to ignore the end of the conversation. Twenty days. Focus Twenty days. Focus. "I want the framework done today and the mounting plates ready to go by tomorrow."

Ten days.

Tinker was growing frightened that she wasn't going to make the deadline.

True, the carpentry finished the first week, and the carpenters moved to the second gate to leisurely work there. After a week of hammering, the silence had seemed a blessing, but now the quiet seemed only to make the approaching deadline more ominous.

She hadn't counted on the fact that the oni had no electricians, and that those oni working with her were so unfamiliar with electricity that they were clueless. What could be so hard about running cables? She thought monkeys could do it. She had been interrupted time and time again to check their work. Wiring out of phase. Miswiring the grounds. Hooking the grounds in sequence into the main 240 line. The oni didn't miss a single way to screw up something so simple. More than once she had them rip several hours of work out. At least the confusion allowed her to slip in modifications unnoticed by Riki or Chiyo.

Speaking of the kitsune, she was going to kill Chiyo soon.

After a battle of spiders-which she won with the steel spinner incident-snakes began to infest her thoughts. Unfortunately, all the bits of cable littering the warehouse lent themselves to Chiyo's illusions. The kitsune apparently couldn't find room in Tinker's head while she was locked on circuit design, but the moment she was called away, she'd find the nearest cable suddenly slithering around. Annoying as it was-Tinker was more frightened that Chiyo would report Tinker's concerns of missing the deadline.

Only ten days remained. She had carefully reshaped the original gate's specs so that her gate opened a dimensional door only within its limits. She was still struggling with compressing the design down to the hundred-to-one ratio. There was still the masking, dipping, fitting...the list went on and on. And that a.s.sumed everything worked the first time. In danger of losing track of details, she'd sacrificed an hour to creating a schedule, copied it to her datapad, and printed up a copy for the wall. She found herself, however, now glancing at the schedule instead of the clock. Ten heavily loaded days.

"Stay focused," she murmured, and jumped slightly as Pony set a bowl down in front of her.

"Forgiveness."

"Oh, it's just Chiyo with her d.a.m.n snakes and prying thoughts keeping me on edge on top of everything else. Rice and fish again? Bleah."

Pony grunted slightly. She looked up, and noticed that he was focused across the warehouse. A patrolling oni warrior had come into the warehouse, strolling around the ma.s.sive wooden ring.

"A new one?" she asked, returning to her food and diagrams. Non-workers wanting to see the imposing gate were an annoyance she suffered for Pony's sake; he used the opportunity to track the onis' numbers.

"Sixty-one," Pony whispered. "Small, rifle and sword, no pistol."

Tinker winced at the number, which climbed daily. Already the oni warriors outnumbered Windwolf's sekasha sekasha three to one. Pony was of the opinion, though, that oni weren't as skilled fighters. three to one. Pony was of the opinion, though, that oni weren't as skilled fighters. "The ones in charge are always the biggest and loudest, they run toward fat, and I haven't seen any sign of weapon practice." "The ones in charge are always the biggest and loudest, they run toward fat, and I haven't seen any sign of weapon practice."

Riki came up, checking things off his datapad. "I think we finally nailed down the wiring. How's the circuit coming?"

"I'm just finishing-I think. I want to run them through a simulator before committing them to tile."

Riki nodded to the wisdom of this.

Tinker sensed Pony tensing, which probably meant Chiyo was closing on them. She spared a glance to check. The kitsune had paused, standing in profile to them to talk to one of the oni doing the wiring. Already the kitsune looked like she had a small pumpkin under her kimono. Riki had mentioned that a kitsune gestation was only fifty days; at ten days she was nearly the equivalent of three months in human pregnancy.

I can't let the oni into my world, Tinker thought for the thousandth time, and then firmly locked away her thoughts. "What is your plan? Do you have an army sitting on the other side of this gate?"

"Yes," Riki said.

"It started to ama.s.s last year." Chiyo joined the conversation. "I'm told it numbers in the tens of thousands."

"This gate is only good while Pittsburgh is on Elfhome," Tinker pointed out. "Even if you wait until after Shutdown to start bringing over your army-to maximize your time before the humans can react-you only have twenty-eight days until the next Shutdown. Then Pittsburgh goes back to Earth, either fully loaded with oni, or a war-torn ghost town. What little I know of the United States, they usually don't take kindly to that kind of s.h.i.t."

"We'll ride this Shutdown out," Riki said, unconsciously echoing Oilcan's phrase. "And after that, there won't be another Shutdown."

"What?" Tinker yelped. "How can you stop Shutdown?"

"Shutdown is just flipping a switch," Riki said.

Chiyo laughed. "Oh, stupid fake elf, if we had the station built, don't you think we can control when it turns on and off?"

"The oni are working with with the Chinese?" Somehow Tinker thought the oni had merely been feeding the Chinese information. But even as she said it, she realized that the cooperation would have to go deeper than that. the Chinese?" Somehow Tinker thought the oni had merely been feeding the Chinese information. But even as she said it, she realized that the cooperation would have to go deeper than that.

"I told you that some of us were stranded on Earth for hundreds of years," Riki said quietly. "Many of the kitsune's mental powers, like the mind reading, do not need magic to work. They have infiltrated the Chinese government to the highest levels. They're the ones that pushed through the building of the gate."

Tinker frowned. "The gate was wholly an oni's project? What about the colony at Alpha Centauri?"

"There is no colony," Riki said. "It's an elaborate sham that the tengu and the kitsune dreamed up. The gate is nothing more than a huge magician's box that we pull rabbits out of."

The problem with liars was knowing when they were telling the truth. Tinker couldn't believe that the entire twenty-year colonization program had been a sham. "Where the h.e.l.l are the colony ships going?"

"Don't know." Riki shrugged. "We were hoping that they would go to Elfhome, or, failing that, Onihida, but they didn't go to either. We don't know what star system your father calibrated the gate for, so we picked one for the media. As far as we know, the ships could be on the other side of the galaxy, or a fourth dimension of Earth. Wherever they are, they've got a lot of empty cargo pods-we had to keep pushing stuff through the gate to justify leaving it on."

"They've been without supplies for twenty years?" Tinker stared at him, stunned. Lain and the astronomers had filled her life with information on the colonists until they were intimate strangers. "How could you do that?"

"We don't even know if they've survived the jump. If they came out next to a black hole, or any exotic star system-like a red nova or white dwarf-all the supplies in the world couldn't keep them alive."

"But-but-but all the progress reports from the colony?"

"We didn't have to worry about reports immediately, as Alpha Centauri is light years away. Eventually we put up a satellite in an extreme orbit with correctors to fake a signal from the colony. Beijing beams the feed up to the satellite that bounces it back in a wide enough spread that you can pick it up anywhere on Earth."

She noticed Chiyo's gaze fixated on her, like a hunter seeing prey, and concentrated on factoring numbers. "Stay out of my mind, you little b.i.t.c.h."

Riki picked up the dirty dishes and handed them to the kitsune. "Make yourself useful." They watched Chiyo carry the plates away. "If it makes you feel any better, all the first colonists were tengu and kitsune. They knew the risks. And we did send supplies for the first few years-they were our family-but Tomtom decided it was a waste of food and goods. He diverted the cargo to Onihida, where starvation is common."