Okay, she thought. A bit faster than that, really. The earth’s circumference was 24,860 miles, and a day was twenty-four hours. So midnight would have to move at about 1,036 miles per hour to make it all the way around the earth once per day.
She’d seen it on the Discovery Channel, from cameras on the space shuttle: the terminator line, the edge of darkness that marked dawn or sunset, sweeping across the earth. True midnight must work the same way, an invisible edge cutting across the world, bringing the blue time.
Right now midnight would be about nine hundred miles east of here, in the next time zone. Of course, as far as any of them knew, there weren’t darklings or midnighters or blue time anywhere but Bixby. Rex had never figured that one out. Dess wondered if a little less lore and a little more math might solve the puzzle.
She looked out the window. Still no Rex and Melissa.
For a horrible moment she wondered if they had left her behind. Just taken off for the snake pit without her. The old feeling of isolation gripped her.
It was all Melissa the Mindcaster’s fault. She’d tracked Rex down when they were both eight years old. Dess was only a year younger, but it had taken Melissa another four years to find her. Melissa’s excuse was that Dess lived too close to the badlands and that back then all the darklings and slithers had confused her unformed talent.
That sounded like a load of crap to Dess. Melissa could pick Rex up from a mile away even in daylight; in the blue time another midnighter was like a flare on a dark horizon. She’d found Jonathan and Jessica within days after they’d arrived. But for the four years that Rex and Melissa had been alone together, all Dess had known was slithers, the lonely surety of math, and Ada Lovelace.
She reached into Ada’s box and switched the errant gear around, wound her up again. “Dance, my pretty.”
Dess was sure that her isolation in those early years had been purposeful. Melissa had played for time while she and Rex explored midnight together, grew up together. The scheme had worked. By the time Melissa finally “found” Dess, Rex and Melissa were so tight that nothing could ever come between them. And Melissa’s psychic hold on Rex made it impossible for him to even think about what Melissa had done.
Dess swallowed and stared out the window.
They wouldn’t dare leave her behind tonight. Even with the snake pit already set up to repel darklings, they needed her in case something went wrong. When it came to steel, only she could improvise. Without her this whole mission would be impossible.
It wouldn’t be so bad if Jonathan Martinez hadn’t been such a disappointment, flying off to his own little world instead of bringing the group together. Maybe Jessica would bring him around, once the two of them reappeared from the couple zone.
Dess shook her head. She had to stop thinking about this stuff before they got here. She didn’t want to give Melissa the satisfaction of knowing she felt this way.
As she always did to hide her thoughts, Dess let the numbers take over her brain. “Ane, twa, thri, feower…”
Seconds later something pinged in the back of her head: another mathematical mistake. “Two in one night,” she muttered.
Midnight wasn’t coming toward Bixby at 1,036 miles per hour. It would only move that fast at the equator, the one line of latitude that went around the earth’s true circumference, like a tape measure around the widest part of a fat man’s belly.
Dess could see it in her head now. The farther north you were, the slower midnight (or dawn, or whatever) swept across the earth. A mile from the North Pole the daylight would move as slowly as a sick turtle, taking a whole day to crawl in a small circle.
She looked out the window. Still no rusty Ford, and midnight 2,978 seconds away.
Now it was really bugging her: How fast was midnight moving toward Bixby? Why wasn’t her brain just telling her, giving her the answers like it always did?
She counted to thirteen, relaxing and letting the calculations move into the conscious part of her mind. Of course: to figure it out, she needed to know how far away from the equator Bixby was.
She turned from the empty window and pulled her social studies textbook off the shelf, opening it to the back. Flipping through it, she found a map of the midwestern United States. A postage stamp like Bixby wasn’t on it, of course, but she knew the town was just southwest of Tulsa.
This was easy: a latitude and a longitude line crossed right where Bixby would have been if anyone had bothered to put it on the map. Thirty-six degrees north and ninety-six west.
“Oh boy,” she said softly as the numbers rattled around in her head. All thoughts of midnight’s speed disappeared. This was serious.
Thirty-six was a multiple of twelve. Ninety-six was a multiple of twelve. The numerals all added up (three plus six plus nine plus six) to twenty-four, another multiple of twelve.
She closed the book and whacked herself on the head with it. Dess had played with the zip code, the population, the angles of the architecture, but it had never occurred to her to look up Bixby’s coordinates before.
Maybe it wasn’t just the mystical stones and untouched desert that made Bixby different; maybe it was the spot on the globe itself. Just like the thirteen-pointed stars everywhere, the clue had been hidden right out in the open, on every map in the world.
Dess’s heart beat faster as the numbers roiled through her. If she was right, this discovery might also answer the other trillion-dollar question: Were there other blue times in the world? Dess closed her eyes, picturing a globe in her mind. The seas and landmasses disappeared until only navigational lines remained, a glowing wire-frame sphere. When you switched around the directions, there would be seven more places with the same numbers as Bixby: thirty-six south by ninety-six west, thirty-six west by ninety-six north, etc. And probably more combinations with other numbers. Forty-eight by eighty-four followed the same pattern, as did twenty-four by twenty-four. Of course, most of these places would be in the middle of an ocean, but some of them were bound to be on land.
There might be another dozen Bixbys out there.
Or the whole thing might be a coincidence.
Dess bit her lip. There might be a way to check the theory.
She opened the social studies book again and stared at the map of Oklahoma, willing her eyes to become microscopes, to expand the map until she could see Bixby and the surrounding badlands. Where exactly did the two lines intersect?
Her dad could find out. As a rig foreman, he had detailed survey maps of the oil fields surrounding town, including the badlands.
Dess looked out the window. Nothing. Sitting here waiting was driving her insane. She had to find out where the center of midnight was. If her theory was right, she had a pretty good idea of where the lines would intersect.
She stood up and crept to her door, opening it a crack. The usual flicker of TV light was absent down the hall, the house silent and still. Dad was working tomorrow, like he did most weekends, so her parents were already in bed. Dess stepped out into the hall, careful not to put any weight on the long-memorized pattern of squeaky boards, moving slowly toward the living room. She left the door open behind her, listening with one ear for the sound of impatient tapping on her window.
This was really stupid, she realized. It could wait until tomorrow. Things were behind schedule enough without a parental confrontation.
But she had to know for sure.
Dad kept his maps in the wide flat file that doubled as a coffee table in the living room. Dess knelt before it and pulled out the top drawer, a yard across. Just folders, pens, and crap in this one. The next one down opened onto maps on thin paper that tried to curl up as she pulled out the drawer, bearing black fingerprints and giving off the familiar smell of Oklahoma crude.