Martha Wells - All Systems Red

The scans read the perimeter sensors as dead and the drones weren’t picking up any warning indicators. The DeltFall HubSystem was down, and without it, no one inside could access our feed or comms, theoretically. We crossed over and into the landing area for their hoppers. They were between us and the first habitat, the vehicle storage to one side. I was leading us in at an angle, trying to get a visual on the main habitat door, but I was also checking the ground. It was mostly bare of grass from all the foot traffic and hopper landings. From the weather report we’d gotten before the satellite quit, it had rained here last night, and the mud had hardened. No activity since then.

I passed that info to Mensah through the feed and she told the others. Keeping her voice low, Pin-Lee said, “So whatever happened, it wasn’t long after we spoke to them on the comm.”

“They couldn’t have been attacked by someone,” Overse whispered. There was no reason to whisper, but I understood the impulse. “There’s no one else on this planet.”

“There’s not supposed to be anyone else on this planet,” Ratthi said, darkly, over the comm from our hopper.

There were three SecUnits who were not me on this planet, and that was dangerous enough. I got my visual on the main habitat hatch and saw it was shut, no sign of anything forcing its way inside. The drones had circled the whole structure by now, and showed me the other entrances were the same. That was that. Hostile Fauna don’t come to the door and ask to be let inside. I sent the images to Mensah’s feed and said aloud, “Dr. Mensah, it would be better if I went ahead.”

She hesitated, reviewing what I’d just sent her. I saw her shoulders tense. I think she had just come to the same conclusion I had. Or at least admitted to herself that it was the strongest possibility. She said, “All right. We’ll wait here. Make sure we can monitor.”

She’d said “we” and she wouldn’t have said that if she didn’t mean it, unlike some clients I’d had. I sent my field camera’s feed to all four of them and started forward.

I called four of the drones back, leaving two to keep circling the perimeter. I checked the vehicle shed as I moved past it. It was open on one side, with some sealed lockers in the back for storage. All four of their surface vehicles were there, powered down, no sign of recent tracks, so I didn’t go in. I wouldn’t bother searching the small storage spaces until we got down to the looking-for-all-the-body-parts phase.

I walked up to the hatch of the first habitat. We didn’t have an entry code, so I was expecting to have to blow the door, but when I tapped the button it slid open for me. I told Mensah through the feed that I wouldn’t speak aloud on the comm anymore.

She tapped back an acknowledgment on the feed, and I heard her telling the others to get off my feed and my comm, that she was going to be the only one speaking to me so I wasn’t distracted. Mensah underestimated my ability to ignore humans but I appreciated the thought. Ratthi whispered, “Be careful,” and signed off.

I had the weapon up going in, through the suit locker area and into the first corridor. “No suits missing,” Mensah said in my ear, watching the field camera. I sent my four drones ahead, maintaining an interior scouting pattern. This was a nicer habitat than ours, wider halls, newer. Also empty, silent, the smell of decaying flesh drifting through my helmet filters. I headed toward the hub, where their main crew area should be.

The lights were still on and air whispered through the vents, but I couldn’t get into their SecSystem with their feed down. I missed my cameras.

At the door to the hub, I found their first SecUnit. It was sprawled on its back on the floor, the armor over its chest pierced by something that made a hole approximately ten centimeters wide and a little deeper. We’re hard to kill, but that’ll do it. I did a brief scan to make sure it was inert, then stepped over it and went through into the crew area.

There were eleven messily dead humans in the hub, sprawled on the floor, in chairs, the monitoring stations and projection surfaces behind them showing impact damage from projectile and energy weapon fire. I tapped the feed and asked Mensah to fall back to the hopper. She acknowledged me and I got confirmation from my outside drones that the humans were retreating.

I went out the opposite door to a corridor that led toward the mess hall, Medical, and cabins. The drones were telling me the layout was very similar to our habitat, except for the occasional dead person sprawled in the corridors. The weapon that had taken out the dead SecUnit wasn’t in the hub, and it had died with its back to the door. The DeltFall humans had had some warning, enough to start getting up and heading for the other exits, but something else had come in from this direction and trapped them. I thought that SecUnit had been killed trying to protect the hub.

Which meant I was looking for the other two SecUnits.

Maybe these clients had been terrible and abusive, maybe they had deserved it. I didn’t care. Nobody was touching my humans. To make sure of that I had to kill these two rogue Units. I could have pulled out at this point, sabotaged the hoppers, and got my humans out of there, leaving the rogue Units stuck on the other side of an ocean; that would have been the smart thing to do.

But I wanted to kill them.

One of my drones found two humans dead in the mess, no warning. They had been taking food pacs out of the heating cubby, getting the tables ready for a meal.

While I moved through the corridors and rooms, I was doing an image search against the hopper’s equipment database. The dead unit had probably been killed by a mineral survey tool, like a pressure or sonic drill. We had one on the hopper, part of the standard equipment. You would have to get close to use it with enough force to pierce armor, maybe a little more than a meter.

Because you can’t walk up to another murderbot with an armor-piercing projectile or energy weapon inside the habitat and not be looked at with suspicion. You can walk up to a fellow murderbot with a tool that a human might have asked you to get.

By the time I reached the other side of the structure, the drones had cleared the first habitat. I stood in the hatchway at the top of the narrow corridor that led into the second. A human lay at the opposite end, half in and half out of the open hatch. To get into the next habitat, I’d have to step over her to push the door all the way open. I could tell already that something was wrong about the body position. I used the magnification on the field camera to get a closer view of the skin on the outstretched arm. The lividity was wrong; she had been shot in the chest or face and lay on her back for some time, then had been moved here recently. Probably as soon as they picked up our hopper on the way here.

On the feed I told Mensah what I needed her to do. She didn’t ask questions. She’d been watching my field camera, and she knew by now what we were dealing with. She tapped back to acknowledge me, then said aloud on the comm, “SecUnit, I want you to hold your position until I get there.”

I said, “Yes, Dr. Mensah,” and eased back out of the hatch. I moved fast, back to the security ready room.

It was nice having a human smart enough to work with like this.

Our model of habitat didn’t have it but on these bigger ones there’s a roof access and my outside drones had a good view of it.

I climbed the ladder up to the roof hatch and popped it. The armor’s boots have magnetized climbing clamps, and I used them to cross over the curving roofs to the third habitat and then around to the second, coming up on them from behind. Even these two rogues wouldn’t be dumb enough to ignore the creaks if I took the quick route and walked over to their position.