“Four more just launched,” Rob said.

Morton watched the alien flyers set off across the smooth waters of the Trine’ba, flying low, and keeping parallel to the shore. They all used broad fans of sensor radiation to sweep across the shallow ripples. Morton’s armor suit stealthed down, its chromometic skin melding into the tawny beige of the landscape, while its thermal emission matched the temperature of the mud. The sneekbots folded their crablike bodies to the ground and sent their main arrays into hibernation mode. The flyers didn’t even bother probing the hillside.

“Wonder what they’re looking for?” Rob asked as his suit returned to life.

“Mellanie said a few people stayed behind. They’re probably causing some trouble for the Primes.”

“Great, that’s all we need, enthusiastic amateurs stirring things up for us.”

Morton smiled. “So you think we qualify as professionals, do you?”

“Listen, I’ve been doing this kind of work for a while now. I know what I see, and you guys took on the basics in training. In any case, we’ve got the kind of equipment that can do some serious damage. If we find these farm boys we need to get them to back off.”

“Yeah, I figured that.”

“So how come Mellanie knows about the locals and where they’re at?”

“This was where she was when the Primes invaded, right here in Randtown.”

“No shit. And this is where you got sent. There’s a coincidence.”

“Yeah.” Morton wanted to grin, but it was something that had bothered him, too. Still, too late to worry about it now.

He was surprised by the scale of activity where Randtown had once stood. A vast block of machinery that resembled a human chemical refinery had been assembled along the shore, extending for a couple of kilometers on either side of the old quayside, and even standing on stilts to arch over some bays and inlets. Bright lights blazed from every point of the structure, illuminating exposed equipment buttressed by thick metal girders. Behind that, on the gentle slope leading up from the back of the town, boxy buildings and large cylindrical storage tanks had been set up on the old human road grid. Spaced between them were a number of large fusion power plants. The old highway leading back through the Dau’sings had been widened. It was carrying a lot of traffic out to Blackwater Crag, big slow vehicles spitting out black exhaust smoke as they lumbered along. Rows of long buildings were just visible at the foot of Blackwater Crag, stretching back along the valley. A string of flyers patrolled above the refurbished road, dipping in and out of the smothering clouds.

Outside the original town limits, six broad terraces had been bulldozed into the bumpy foothills, with a further two under construction. They seemed to be parking, or holding areas, covered with unopened pods of equipment, vehicles, and flyers; four vast open arenas were filled with aliens.

“Well now, finally!” Morton said as they wormed their way along the ruined tree line at the top of the foothills. The hardy pines were suffering badly in the sickly winter climate. Slushy water clung to every needle, turning them a dull unhealthy sepia. Many trunks had fallen, ripping out huge circular wedges of dripping soil as long mudslides undermined their roots. It was perfect cover. The sneekbots maintained their protective perimeter, crawling their way through the fungal muddle of broken twigs and mulched needles.

He used the suit’s sensors to zoom in on the naked creatures parading across the nearest arena below. They were quad-symmetric, with four thick legs at the flared base of a sallow-colored barrel body. When they moved, it was with a rocking motion as the legs bowed and flexed along their whole length. Four arms emerged just above the legs, almost as thick as the lower limbs and moving in the same long curving motions. Morton didn’t think they had joints like elbows and knees, the whole thing was elastic. The crown sprouted a further eight appendages, four stumpy trunks with an open mouth; while between them four tall slender tendrils that ended in bulbous lumps of flesh waved about like corn in the wind.

“Solid-looking brutes,” Rob said. “There must be thousands of them down there.”

Morton gave the arenas another scan with his suit’s optical sensors. “More like tens of thousands.” He was recording the scene for the navy. The first communications wormhole was due to open in another seventeen hours; he’d be able to send them the information then. It would be interesting to see what their analysts came up with.

“They’re all fitted with a transmitter gadget, look,” Rob was saying. “I just keep getting that analogue hash coming from them.”

“Right.” Morton was watching a pair touching their long upper limbs together. An alien kiss? A fuck? “I know we’ve only just seen them, but they all look identical to me.”

Rob snorted. “Very not politically correct.”

“I was wondering if they were clones. Some kind of disposable construction crew? Just a thought. Their army might be the same. A perfect soldier replicated a hundred million times. It would explain their dire lack of tactics, all they ever do is use numbers to overrun us. They don’t mind the slaughter because they’re not losing individuals the way we are.”

“Could be. It makes as much sense as any other idea. Let’s see if we can get a closer look.”

With the sneekbots prowling ahead and behind, they began to worm their way deeper through the decaying foliage of the fallen trees. Morton could see several hundred aliens working on the long refinery station by the shore. The giant machine was still being extended. Both ends were sheathed by a network of scaffolding that supported cranes and hoists. Aliens swarmed all over the new components that were being added. They must possess an excellent sense of balance, Morton thought; he couldn’t see anything equivalent to a human handrail on the narrow metal struts that they moved along.

“Ho, did you see that?” Rob asked.

“What?”

“One of those things just took a crap off the top of the refinery station.”

Morton tracked his optical sensors along the colossal structure. Now he knew what to look for, he could easily find evidence of more casual defecation. The pipes and girders were splashed with tacky brown patches. “So? They never got around to inventing a flushable pan. The Doc was saying we need to watch out for a different philosophy more than any other type of variation between us.”

“I’m not sure that’s a question of psychology or even bad plumbing. Leaving your own waste products around like that is a very counterproductive thing for a species to do. Everyone develops disposal mechanisms, both social and practical; it’s one of the first signs of civilization emerging. You don’t just wait for the rain to wash it away.”

“You have no idea what their digestive biochemistry is like,” Morton said.

“Face it, their crap could be the perfect fertilizer.”

“Then they’d collect it and transport it to a field. No, we’re missing something. You may have been on the right track with your clone army idea.” He paused, unhappy. “Though even they wouldn’t deliberately foul their own environment. Nothing would. This doesn’t make sense.”

“Maybe the clone clean-up army is due to arrive next.”

Rob chuckled. “You want to put some money on that?”

“No way.”

After another half hour of cautious movement through the moldering forest, they had moved as far west as they could go before risking open ground. The fallen trees had also brought them to within six hundred meters of the force field protecting the alien town. They sent a trio of sneekbots on ahead, but stayed under cover of the sopping wood as the invisible sun finally fell below the horizon.

“Another difference,” Rob said.

“What?”

“There’s no color on anything they build, no finish or decoration. All the external material is raw.”