The Gatekeeper - Michelle Gagnon

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drove to San Francisco for the competition. They’d named their entry “Maxwell’s Law” (her father’s idea). They had to settle for second place after their robot’s rotary saw fell off in the final round. But her father had been so proud, he told everyone that his daughter had built the machine herself out of scrap metal, he’d hardly been involved.

      Madison was startled to find a tear slipping down her cheek. She wiped it away, agitated, and focused on the task at hand. She’d almost left the console at home, not wanting Shane to know that she was secretly hooked on “The Legend of Zelda.” Thank God she’d decided there was only so much a person could sacrifice for true love. She wondered if Lurch had been the one e-mailing her, pretending to be Shane. At the thought she started cracking up, and bit her lip to stifle the giggles. She didn’t want him poking his nose back in, not now.

      Handheld consoles had come a long way from when she got her first Game Boy. Thankfully, Lurch didn’t appear to know that. This particular model had been a birthday gift from her dad, a next generation prototype that wouldn’t even be on the market for another year. Like all the newer systems, it had Wi-Fi capabilities for multiplayer online games. Of course, an accessible wireless network had been too much to hope for. She’d done a search immediately, but the only one in radius was secured and she was no hacker. She’d made a halfhearted stab at passwords to amuse herself, typing in Addams Family, Lurch, and, with a pang, Shane’s girl. No luck, she’d need the proverbial million monkeys tapping away for years to crack it. And she didn’t have that kind of time.

      Fortunately, there was one more feature of the unit that Lurch had overlooked: a GPS transmitter. It was an add-on that worked by comparing the signals received from several satellites, then running a complex set of computations to triangulate the results and produce a set of coordinates. Unfortunately, the thick metal hull of the ship prevented access to most satellite signals. Luckily Madison had spent the past few months studying an alternative.

      In 2006, when GPS devices started glutting the commercial market, the U.S. government became concerned that military receivers might be lost in the barrage of white noise. The military relied upon a GPS system for navigation and targeting, and any compromise of that system could prove catastrophic. To protect themselves they launched new satellites, with “boosted” signals that were only available to the Department of Defense. Madison’s last science fair project had been disqualified, thanks to her claims to have tapped into the new satellite systems. At a conference with the school principal, her father had explained that scientifically speaking there was no way she could have done it, and her mother had grounded her for a month. The principal still gave her funny looks whenever she passed him in the hall. They all thought she was trying to get attention, still reacting to the divorce.

      Well, yeah, maybe she had been. But that didn’t mean she hadn’t done it. After conducting experiments with her iPhone all over the city, Madison discovered a rogue signal. Honestly it hadn’t been all that hard, just time-consuming. And once she had that signature down, all she had to do was find it again.

      If she could tap into it and recalibrate her DS Lite’s GPS to send a signal rather than receive it, maybe someone would be able to track her down. She just hoped one of her moron family members remembered the console.

      Her tongue jutted out the side of her mouth as she concentrated, squinting in the dim light, carefully manipulating the interior components. Madison was careful to touch the plastic exterior each time to ground it. She’d have to reconfigure the power settings, too—it would be a race against battery life at the end. She just hoped someone out there would be listening.

      Seven

      Jake forced himself to tear off a bite of turkey sandwich. He was trying to eat healthier these days, a losing battle for a guy reared on steak and lots of it. All those months of setting up the new business had kept him out of the gym, and he recently realized with alarm that his six-pack was morphing into a two-pack. Kelly had teased him, grabbing his middle and riffing about the slow march of time and declining metabolisms. Well, screw that. Jake Riley wasn’t giving in without a fight. Even if that meant switching to light beer and turkey.

      He was in one of the ubiquitous sandwich factories lining the Berkeley campus, trying to get his mouth around a sandwich so stuffed with sprouts they should have named it the “Colon-Cleanser.” The place buzzed with students grabbing a bite between classes. Their tie-dyed shirts and Birkenstocks reminded him of when he first met Kelly, during an ugly case at a university. At least in the end something good had come out of it.

      As he took in the fresh faces he experienced a pang: Madison Grant wasn’t much younger than these kids, another two years and she might have been among this crowd. He hoped to God she’d still get the chance, but based on the day he’d had so far, things were looking bleak.

      The pressure was compounded by the fact that if Randall was telling the truth, more than just Madison’s life hung in the balance. Jake preferred to think he was just blowing smoke up their asses, trying to make sure they did everything possible to find his daughter. But a small voice in the back of his head argued that Randall was scared enough to risk his job and reputation by trusting them rather than Homeland Security. The lab he was working in had produced most of the major advances in military hardware in the past century, along with biochemical weapons that could wipe out civilization as we know it. And whoever had stolen Madison Grant was a pro: not only were they good at covering their tracks, there were almost none to speak of.

      Syd and what he referred to as her “shadow network” had diligently run down every lead, no matter how tenuous. There was a moment of excitement when the license plate trace turned up a limo company based in South San Francisco. But that died down fifteen minutes later, when Syd got a faxed copy of the stolen car report. And ten minutes after that they learned that the final destination of the Lincoln Town Car had been a chop shop in Oakland. It was currently being returned to the limo company owner in pieces.

      Jake had immediately headed over to the chop shop, driving through a section of Oakland that closely resembled war-torn Beirut. A few guys were hard at work on an Escalade. It took a few hundred to convince them he wasn’t a cop, and a few hundred more to find out where they got the car. If they were telling the truth, when they showed up at work three nights ago it was sitting in front of their garage, keys in the ignition, like a gift from the gods. And they knew better than to question it.

      Syd had considered calling in a favor, trying to get the remaining parts dusted for prints, but Jake convinced her otherwise. They’d probably end up with the oily imprints of a few grand theft auto felons. Whoever possessed the car before them was too careful to be that sloppy, it had probably been detailed inside and out before materializing in Oakland. Syd was running a background check on everyone at the limo company in case it was an inside job, but so far they’d turned up clean. So he was sitting here choking down a sandwich while he waited for Syd to call.

      Jake rubbed his face. They had two leads left to follow: the shadowy image of the driver’s face, and the mythical Shane’s e-mail account. At the moment he wasn’t holding out much hope for either. Facial recognition software was notoriously unreliable even when you had a good image to work with, and good didn’t describe what they had. As for the e-mail address, computers weren’t his thing, but he knew that any hacker worth his salt could bounce messages through dozens of servers worldwide, rendering them untraceable.

      Jake’s phone buzzed and he tossed the sandwich back on its biodegradable plate, strewing a comet trail of sprouts. “Hey, Syd. What have you got?”

      There was a pause before she replied, “Not much, I’m afraid. All the texts trace back to a disposable phone. I managed to track down its batch number. It was sold to a Walgreens distributor in the Bay Area, but from there it could have gone to a dozen different stores. And whoever purchased it probably paid cash.”

      “So the number kept switching?” Jake asked. “Why wouldn’t that make Madison suspicious?”

      He could almost see her shrugging. “Don’t know. She’s a bright girl—according to Randall she’s some sort of mechanical genius—but he must have given her a rational explanation.”

      “What

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