The Seventh Angel - Страница 9

She sequenced through the test readouts one at a time, verifying that every one of Mouse’s components was operating within design specifications. She paid particular attention to the error-checking routines for the robot’s command code. She’d put in a brand new patch in the software last night, and she wasn’t entirely sure that it was stable. But no errors were showing up this morning, so maybe she was worrying for nothing.

Just for good measure, she sequenced through every test readout again. Again, every test passed without error. The robot was purring like a kitten.

Ann disconnected the test cable and replaced the pressure cap on the data port. She was careful to check the o-ring seals, and to make sure that the threads of the cap were properly seated. Like all of the other external fixtures, the data ports were waterproof, and rated to withstand the pressure at the robot’s maximum operating depth. She could have theoretically left the cap off entirely without affecting the robot’s performance, but there was no point in taking unnecessary chances.

When she was satisfied that the port was properly covered, she checked the seals and alignments on every other external fitting. Finally, she looked up at the burly Navy man standing by the controls for the boat davit. She knew from earlier introductions that he was a second class petty officer, but she couldn’t remember what it was about his uniform or rank insignia that was supposed to tell her that.

She had forgotten the man’s real name, but she knew that the Navy types all called him Boats. Maybe that was because he was in charge of the boat deck. Ann didn’t know, and she didn’t particularly care. As long as he handled her equipment with respect, the man could call himself the Queen of Sheba.

Ann caught his eye and nodded. “Let’s do this thing.”

Boats gave her a thumbs-up, then he glanced around the boat deck and spoke in a loud voice. “All hands stand clear of the boat davit while conducting over-the-side operations.”

The crowd of khaki onlookers was well clear of the work area, but they all shuffled backwards a few steps anyway. Their murmuring trailed off as the angled arm of the boat davit pivoted smoothly to the left, swinging Mouse out over the lifelines, where the robot dangled twenty feet above the wave tops.

Boats checked the alignment of the davit, made a minor adjustment, and then punched the control for the winch motor. With a muted hydraulic rumble, the winch began to reel out cable, and Mouse descended toward the water.

This was what the looky-loos had come to see: the weird yellow machine, embarking on the great rescue mission. What a bunch of freaking idiots.

The davit operator was good. At the last second, he reduced the speed of the winch, and Mouse settled into the water with barely a splash.

Boats caught Ann’s eye, and waited for her signal.

Ann looked over the side of the ship. Mouse was trailing at the end of the cable, his bright yellow hull about three-quarters submerged in the cold slate-gray waves.

This was always the scary part. As long as Mouse was hooked to the cable, they couldn’t lose him. But the second they let him off the leash, the robot would be on his own — beyond human control.

In some places, the Aleutian trench went down more than 25,000 feet. If something went wrong in water this deep, Mouse could be lost forever.

But they couldn’t keep the robot on the leash. He couldn’t do his job with the cable attached, and even if he could, that went against the entire purpose of an autonomous machine. Ann had devoted years of hard work to making sure that Mouse could operate safely without human intervention. Why was it always so difficult to turn him loose?

She took in a deep lungful of the startlingly cold Alaskan air, and exhaled, her breath coming out as a cloud of vapor. She gave Boats a nod. “Let him go.”

The Sailor manipulated the davit controls, and the clamp at the end of the cable disengaged itself with a metallic thump. Hydraulics moaned again, and the winch began reeling in the cable.

Free of his tether, Mouse floated just below the waves for a couple of seconds, bobbing gently with the swells, as though gathering his wits or getting his bearings. And then the robot’s propulsion pods came to life, driving the machine forward, and down.

For a second or so, Ann could see the robot’s yellow form through the water, and then it disappeared into the depths. For better or for worse, Mouse was on his own.

* * *

Twenty minutes later, Ann sat in the ship’s Combat Information Center, and stared at the screen of the ruggedized laptop computer that served as the display and control interface for Mouse. Somewhere out there, across two miles of ocean and three thousand feet under water, Mouse was approaching the downed mini-sub. The robot was due to transmit a final updated position report before beginning its survey of the accident site.

The khaki-brigade had followed her inside. They were lingering around CIC, keeping mostly out of Ann’s way, but sticking close enough to see the action — if there was any.

Jesus. Didn’t these people have jobs?

A flashing status indicator on the laptop screen grabbed Ann’s attention. Personal feelings aside, she had a job to do. Part of that job meant swallowing her distaste for these military yahoos, and simulating a degree of courtesy that she didn’t really feel. But the other part of her job — the important part — was making sure the robot did what it was supposed to do. That part Ann was very good at.

Her eyes stayed fixed on the screen. If something was going to go wrong, this was when it would probably happen.

Mouse’s onboard computer sometimes failed to transition properly from directed transit mode to autonomous mission mode. The robot had no problem following programmed navigational waypoints from one set of geographic coordinates to the next. It also operated pretty reliably under full autonomy, using the situational-response algorithms built into its core programming to make decisions, and its maneuvering motors, sensors, and manipulator arms to take whatever actions were dictated by the results of those decisions. It even made good decisions, the majority of the time. That was supposed to be the tricky part: getting a self-directed machine to assess complicated problems without human intervention, and then plan and carry out appropriate corrective actions.

Mouse could do all that. But sometimes the damned thing went crazy during the transition from one mode to the other. During two out of the last five test runs, the robot had completed transit mode without a hitch, and then promptly abandoned its mission and returned to its launch point, where it had driven itself to the surface and steered in circles until it was captured and shut down.

In Ann’s technical log, the unplanned excursions were written up as Unpredicted Vehicle Behavior. That was geek-speak for ‘the robot did something freaky and I don’t know why.’

Ann had been up most of the night, working on a software fix to patch the mode transition problem. She’d located a bug in the command code, but she had no idea if correcting it would fix the problem. The patch looked pretty good on paper, but she needed a week or so of testing to be sure. Not that there’d been any time for tests. Mouse had gone back into the water just minutes after she’d uploaded the new code — orders of the ship’s commanding officer — Captain Bogie, or whatever his name was.

It wasn’t fair, damn it! This was just supposed to be an Advanced Technology Demonstration. They were here to put the Mouse prototype through its paces, find out what worked and what didn’t, in an actual shipboard environment. What the hell was the Navy thinking, trying to turn it into a rescue? For that matter, why were those idiots at corporate going along with it? Until the Navy signed off on the final contracts, Mouse was still the property of Norton. The company could have said, ‘no.’ They should have said, ‘no.’ Why hadn’t they?

Ann knew the answer to that question. She just didn’t like it. The International Submarine Escape and Rescue Liaison Office was rushing people and equipment to the scene as quickly as possible, but the nearest submarine rescue equipment was still at least eight hours away. Unfortunately, the men and women aboard the Nereus might not have eight hours. For all anyone knew, they might not even have eight minutes.

Finding the submersible wasn’t an issue. Like most manned underwater vessels, the Nereus was equipped with an emergency transponder. The little black box was working just fine. It had been transmitting an emergency locator beacon every six minutes since the accident had occurred.

The real problem was depth. The Nereus was nearly three thousand feet down. Much too deep for divers. Even the advanced hardsuit dive rigs couldn’t withstand the water pressure that far down. At this particular moment in time, one Navy destroyer and one crazy-assed underwater robot were the only hope of rescue.

That was so wrong that it was nearly perverse. The lives of human beings should not be allowed to hang by so thin a thread.

The software wasn’t ready. The hardware wasn’t ready. And Ann sure as hell wasn’t ready.

This whole situation had disaster written all over it. The people on that submarine were going to die, and Ann and Sheldon were going to get the blame.

Where was Sheldon, anyway? Ann risked a quick look over her shoulder. No sign of Sheldon. Nobody back there but the gaggle of Navy officers and chiefs, watching over her shoulder. Waiting for Ann to either pull a miracle out of her ass, or make a mistake that would kill the people on that submarine.