The Diggers in the vicinity of the glider were all exclaiming in surprise, or just plain screaming. The nature of what was happening was not clear, even to Ty. It was enough to put the lancers into a more cautious frame of mind, as it gave rise to fears that they were being attacked from behind. Their advance faltered and they looked to see what was the matter.
A thin gray layer was skimming over the ground, headed downhill toward them. It looked a little like a spent wave as it washes and foams over a flat beach just before settling into the sand, parting around rocks and recombining in their lee. More like an avalanche, though, in that it gathered speed as it came on. As it rushed past Ty and the old man, parting around their feet, he was able to focus and resolve it as a swarm of ambots of two different types—one type from each of the crates that had emptied themselves. They were all mixed together. Once they chittered past Einstein, Ariane, and Kath Two, they spread out across the flat open slope separating them from Beled and Bard. Those two were split out to the sides, just beyond arrow range. The swarm then forked as all the ambots of one type converged on Beled and all those of the other type made for Bard. The former group—the Blue-pattern ambots—were smaller, leggier, and quicker on broken ground. That swarm gathered itself together into a clicking, glittering, hissing firehose stream and leaped from the ground at Beled. Rather than striking him, though, it washed around him. In the interval of a few moments he was clothed from head to toe in an armor made of overlapping scales, each scale being the beetle-like back of an ambot. They had swarmed over him and locked themselves together. A few strays clambered over the others’ backs seeking, and plugging, holes.
Langobard’s swarm was a little longer in reaching him. During the final fifty meters or so it became ropy as it passed through a kind of phase transition. Where possible, ambots were copulating, jacking the couplers on their snouts into matching ones in the tails of those ahead of them, forming pairs, then strings of three and four that combined with others, so that by the time the swarm came close to its master it had converged into half a dozen long, whippy ropes, and as many shorter segments. These ambots were basically flynks, more at home flying than crawling. They had some limited ability to fly solo, but were much happier when combined into aerial trains. During their career down the slope they’d picked up a decent amount of energy just by losing altitude, and so in the last few meters they were able to rear up off the ground like cobras and leap into the air, shooting past Langobard but banking into tight turns behind him, curving round, nose seeking tail, until they had formed aitrains: closed loops, fully airborne, flying endless circles around his body, defeating gravity with the modest amount of lift provided by their stubby winglets. He gave them greater speed by the simple expedient of pawing at them from time to time, but they also drew energy from a field being generated by a power plant on his back. Perhaps a third of the flynks had failed to find their way into chains sufficiently long to form aitrains, and so a few shorter segments found his ankles and spiraled up his legs, like snakes climbing trees. There were also some singletons who had not been able to join even a short chain; these found their way to him and climbed as high as they could, competing noisily for perching space on his shoulders. As Bard now moved across space he looked like a combination of Da Vinci’s Vitruvian Man, inscribed within a system of circles, and early depictions of the atom, surrounded by an array of circular orbitals. Each aitrain sang a different note as its flynks sawed through the air, the pitch rising as it absorbed energy and built velocity. He and Beled were moving to join forces, both edging closer to the Diggers as their defenses came online. A single exploratory shaft, fired at a high arc by the foremost of the archers, plunged toward Langobard, but was casually flicked out of the way by a momentary deflection of an aitrain.
It was nothing Ty hadn’t seen before, but it was nonetheless distracting. Forcing himself to attend to things nearer and more pressing, he saw that a warrior had advanced to Doc, who was lying on his side struggling feebly, and raised his lance as if to strike him dead with a single downward thrust. But he had paused. Perhaps he only intended to create a threat. Perhaps he was gobsmacked by what had just happened with the ambot swarms.