There was nothing Ryan could do about it, and there no spare. He picked up the useless wheel, and hurled it as far away from the rockhopper as he could. It careened off of a rock and spun to a stop in a sand drift.
“Shouldn’t we save it?” Brandon asked. “What if we need it later?”
“For what?” Ryan said. “Nothing here can fix it, that’s for sure. It’s just dead weight.”
He cannibalized the motor and the wheel from the middle left side and moved it to the front to replace the one that had frozen. “This one isn’t in mint condition either, but it should do,” he said. It was fortunate that the six-wheeled rockhopper had a lot of redundancy; the wheels were designed to be independent and interchangeable precisely so that the loss of any one of them would not cripple the rover.
“Can you fix the seals?”
Ryan shook his head. “They just weren’t made for this much constant use. Okay, we’re ready to roll. Let’s go.”
They switched drivers. Tana, who’d had the last shift running scout on the dirt-rover, dismounted to take over driving the rockhopper.
As Tana walked toward him, Brandon noticed something odd. Through the dusty faceplate of the helmet, it was hard to tell, but he inspected her again, carefully; it wasn’t an illusion. “You’re blond,” he said.
“What?” Tana laughed. “Not by a long shot, boy.”
He peered through the faceplate of her helmet. She looked funny; the light hair stood out in stark contrast to her dark skin. “That’s what’s different. You’re a blond.”
“No way, guy.”
“Yes! Really.” Brandon looked around. There was nothing like a mirror anywhere around. Finally he went to the rockhopper. He scrubbed the dust off of one of the windows until he could see his own reflection, and invited Tana over to look. “Look.”
Tana looked at her reflection for a long time. Her hair, although not exactly golden, had turned to a light shade of brown, like wheat. “You’re right. There aren’t any mirrors around, or I would have noticed it.” She turned and looked at Brandon. “You’re blond, too. Take a look at yourself. And, come to think of it, so is Estrela. I’ve been thinking that she was doing something to her hair—it was just so gradual that I couldn’t quite put my finger on it. She used to have dark black hair.”
“What is it?” Brandon whispered.
“Peroxides in the soil,” she said. “It’s a natural bleach. No matter how we try to keep the dust out, we can’t help getting a little exposure to the soil every time we put on and take off our suits. We’re all getting a peroxide job.”
Suddenly Brandon put it together. “That’s why our eyes are so itchy all the time.”
“Yours too? I thought it was just me. Yeah, that’s probably it.”
“What do we do about it?”
“Aren’t blonds supposed to have more fun? So, let’s have some fun.” She laughed. “The dust sure isn’t going to go away, I can tell you that. So we’d better learn to adapt.” Tana looked at Brandon. “Say, are you all right? You look a little run-down.”
“I’m fine,” Brandon said. I’m stuck on Mars with psychotics, he thought. Half of us aren’t going to make it back. And there’s nothing to do, nothing to distract us. I’m going to go nuts. “Fine, fine, fine, fine.”
7
Brothers’ Pact
At first meeting, Brandon hated his newfound brother Trevor. They fought like cats, backs arched, hissing at each other and threatening to scratch. “No use bitching about it, Branny,” his mother told him. “Like it or no, he’s going to stay your brother.” And so every vacation, every summer, every holiday they were together.
But it was eerie how similar they were. Trevor liked the same virtual reality world that Brandon did, Dirt City Blue. He loved history and hated algebra, like Brandon did, and had a crush on the same virtual actor, Tiffany Li, the one that all the other kids thought was flat-chested and ugly. Brandon could quote a single word from the lyrics of a stomp song, and Trevor would know what song it was. He would complete the quote and toss a single word back, and just like he could read Trevor’s mind, Brandon always knew which song Trevor was thinking of, even if it was a stupid dumb word like “love” or “night” or even, once, “the.”
Despite the difference in their ages, they looked so much alike that sometimes when Trevor was visiting Colorado, people would think he was Brandon, and when Brandon went down to Arizona, people would talk to him as though he were Trevor, especially when he wore some of Trevor’s outgrown clothes.
Trevor was a shade more obedient, Brandon just a little more rebellious toward authority, and Brandon’s mother considered Trevor a good influence on him. Trevor was a Scout, and knew about rock climbing, something Brandon had always wanted to do. So Trevor taught him, and after that every summer they would go out rock climbing.
And when the announcement came out about the expedition to Mars, they both looked at each other. Trevor was twenty now, a junior at Arizona State. They didn’t see each other as often—Brandon was just applying to colleges—but when they did, they still instantly clicked together, as if they’d never been separated.
“You’re thinking what I’m thinking,” Trevor said. It was a statement, nut a question.
“Yeah.”
“Too young.”
“Yeah.”
Trevor thought about it for a moment, and then nodded. “Okay,” he said.
“Great!” Brandon broke into an enormous grin. He didn’t need to ask what Trevor was talking about; as always, they were thinking the same way. “Thanks a lot!”
Tickets to the Mars lottery were a thousand dollars. They bought thirty tickets each.
Brandon reached his hand over his head, and Trevor clasped it. “Brothers forever!” Their words were spoken so nearly simultaneously that, had there been anybody else there, they would have thought it was a single voice.
It hadn’t occurred to Brandon to doubt Trevor for even a moment; his single word—okay—was as good as a vow. The problem had been simple: Brandon was too young for the Mars lottery. Trevor would be twenty-one by the time the tickets were drawn, but Brandon would barely be turning eighteen. The rules were clear: If your ticket won the lottery, if you were over twenty-one and could pass the health screening, you got a slot on the Mars crew. If you were too young, or too old, or couldn’t pass the health exam, you had to take an alternative prize.
Brandon was too young to go to Mars But Brandon could pass for Trevor; he’d done it dozens of times.
What Trevor had agreed to, with barely a moment’s contemplation, was a substitution. If Brandon won the lottery, he could take Trevor’s identification. They were genetically identical; the identity tests would show a perfect five-sigma identity match to Trevor Whitman.
Brandon Weber could become Trevor Whitman, and take the trip to Mars.
8
Over the Line
The next day was no better. The horizon dropped away on their right, and they found themselves paralleling the rim of another enormous chasm. “Gangis Chasma,” Ryan announced. “The orbital views show some large landslides from the rim. They’re over on the north side, but I don’t know if we can trust how stable the rim is.” He was beginning to lose his voice and continued in almost a whisper. “We’d best not venture too close.”
Brandon wanted to ask how serious the danger really was—Mars had been around for billions of years, was it really likely that there would be a landslide at the exact moment they were passing by? But by now all of their throats hurt, and nobody talked more than necessary. They kept moving.