Extinction

any openings. They should be easy to spot now, with thin walls and even thinner stuff on the other side. Make sure you don’t let the roof collapse on us, or let us sink through the floor into some water reservoir.”

“Right. Yes, sir,” Jensen said. “Ah, how far out do I have to scan, sir?”

“Thirty yards. Every direction. And don’t let me catch you dialing it down any closer, either.”

“No sir,” said the Corporal. He made a spinning motion with his finger on a blue screen. The device pinged with greater enthusiasm. Jensen himself looked slightly green to me. I bet he was thinking about Chen again. Who knew? Maybe that sensor unit sounded like a mating call to a Worm. Jensen began trailing the drill-tank with the sensor bumping behind him. He reminded me of a golfer with a wheeled golf bag, lost in the rough. I smiled inside my hood, behind my goggles. This had to be worst rough any golfer had ever experienced.

Our system worked for quite awhile, making relatively rapid progress. We avoided neighboring tunnels whenever we detected them by changing course. We went up, down, left, right-any direction to keep away from existing tunnels. But always, we drove closer to our goal, the heart of the great mountain.

As we passed through the soft interior I picked up handfuls of the crumbling stuff. We didn’t have a full lab with us, so I couldn’t do a chemical analysis. After looking at it and experimenting, I had to agree with Jensen. The material was not the normal contents one expected when venturing into a mountainside. If I squeezed the earth in my hand, it compressed somewhat. It looked like dirt, but fluffed up dirt, the kind you get when you freshly plow a field and don’t wet it down afterward.

“Kwon, come up here,” I said waving to my Sergeant. He never seemed to be far from my side. I wasn’t sure if that was because he wanted to protect me, or if he thought I frequently needed help. I didn’t bother to ask which it was.

“Sir?”

“What do you make of this? You grew up on some kind of farm, didn’t you?”

“We cut down trees and bred koi, sir.”

“Yeah, a fish-farmer. I’ve worked with soil for years myself. What do you make of this stuff?”

I placed a handful of crumbling dirt into his glove. The lump of earth looked small in his big paw. He squeezed it and let it sift through his fingers. He seemed to take my instructions very seriously.

“Seems like dirt to me, sir,” he said.

“Just normal dirt?”

“Nah. It’s Helios dirt. Not the same. Its half Worm-shit, sir. Good, fertile dirt.”

I nodded. “Yeah, that’s what I figured. Have you noticed that there aren’t many rocks down here? Don’t you think we should run into a boulder now and then?”

Kwon looked around at the walls. Our drill-tanks made a different ribbed pattern in the walls of the tunnel than the Worms themselves did. The laser drills left the walls hot and steaming, with shiny melted glass patches.

“No rocks?” Kwon asked.

“Not really, no. Nothing big.”

“That is strange. I’ve dug into caves, into mountains. There are always rocks, sir. Big ones.”

“Yeah,” I said. “I think I know why.”

Kwon turned his hood to look at me.

“We aren’t in a mountain, Kwon, not really. This is an artificial mound. A hive, or a nest. Kind of like a termite mound. They get pretty big in Africa, you know.”

“Eighty thousand feet?” Kwon asked dubiously.

“No. But these are really big bugs. And they are sophisticated-intelligent. I think this isn’t a hollowed out mountain at all. I think they built this whole thing. The outer shell is tough, extremely tough and resilient. The mountain’s skin is a half-mile thick layer as hard as steel. The Macros bombed them, hit them hard, but couldn’t blast down this far. That’s why they brought us in. To root the Worms out. Don’t you see?”

Kwon scooped up a second handful of earth and crumbled it. “You could be right. The inside of big anthills look like this. The dirt they stack up is broken down into crumbs. It gets soft like-like a mound coffee crystals.”

I snorted. “I didn’t know you were a poet, Kwon.”

“A what?”

I shook my head and waved his question away. Once in awhile, I ran into an English word that Kwon didn’t know. One of them was apparently poet. I wasn’t surprised.

“Why did you join up, Kwon?” I asked him suddenly. Men in Star Force rarely talked about their old lives. As in the French Foreign Legion of centuries past, it was considered rude to ask. The stories, when they were told, were never happy ones.

“Me?” he asked, surprised I would take an interest. “I joined up to fight the Nanos.”

“The Nanos? Not the Macros?”

“Yeah,” he said. “The Nanos killed my sister, see. One of those ships picked her up like a tick and squished her, dumping her out again a minute later. She fell right through the roof of a smokehouse on the farm. I wasn’t there, I was in the army at the time. But when I heard about Star Force recruiting to fight the aliens, I joined up.”

“Then you found out we were fighting the wrong aliens, right?” I asked.

“Yeah. Funny, huh?”

“Hilarious,” I said. “If it’s any consolation, I don’t like the Nanos either-or at least I don’t like whoever sent the Nano ships out. I call those guys the Blues.”

“Are they blue, sir?” Kwon asked.

“No,” I said shaking my head. “The only color I’m sure they are not, is blue.”

“Okay….”

“But maybe Sergeant, if we live long enough, we’ll get our chance to explain our feelings to the guys behind the scenes-whatever color they turn out to be. Maybe we’ll get to see what color they are on the inside, too.”

“I look forward to that, Colonel.”

We made it pretty far before the Worms caught on. I wondered if they had laid in ambush for hours, suspecting we would show up at any moment, walking along one of their big, roomy tunnels. No doubt, they had a dozen traps set up, and were busy arranging deadfalls and cave-ins. But at some point, some bright Worm commander must have noticed that we were coming, that we weren’t following their twisting, looping passageways. We were off the track and digging our own way in.

The first sign they’d figured it out came from my men at the rear of the column. I saw, rather than heard, the first evidence. Flashes of light bloomed up from far behind me. At this distance, the autoshades were slow to react to laser fire. Magenta afterimages splotched my vision. But the glassy walls of the tunnel had reflected it back up to me.

One of the odd things about laser-fire, as compared to ballistic weaponry, was how quiet it was. The weapon itself did little more than hum when it went off, unlike a gunpowder weapon, which boomed. Sometimes, depending on what the beam hit, the target exploded with a considerable sound, but that was the exception. My marines made most of the noise in battle, rather than the beamers themselves. Often, combat was fought in relative silence except for a few shouts and the screams of the wounded. I suspected that even ancient battles, when men hacked at each other with swords, had been louder.

Everyone stopped and craned their hooded heads around. We saw the green flashes, and now my autoshades were working, dimming the view of everything around me. The dimming effect was an odd one, making me feel as if I sank into deep water-or maybe a lake of ink.

“Rearguard company, report,” I said into my com-link.

“Enemy sighted, sir!” came back a young tanker Captain’s response. Roku, I thought his name was.

“Are they advancing?”

“Negative, sir. We saw them pop out of the tunnel walls way behind us, and we took some shots at them. They seem to have retreated, sir.”

“How many?” I asked.

“No more than three confirmed,” Roku said. “Request permission to pursue. They might be scouts and thus give away our position.”