That night, the pod had made a run straight for Platform Six; only one, a female—a detail Peter always found it curious to note, since the differences seemed so slight and served no purpose, as virals did not reproduce, as far as anybody was aware—had made it as far as the net. She was large, a good two meters; most distinctively, she possessed a single shock of white hair on her otherwise bald head. Whether this hair indicated that she had been old when she was taken up, or was a symptom of some biological change that had occurred in the years since then—the virals were thought to be immortal, or something close to it—was impossible to say; but no one Peter knew had ever seen a viral with hair before. Scrambling up the seam, a channel no wider than half a centimeter, she had quickly ascended to the underside of the platform. There she turned, leaping away from the Wall, into space, and grasped the outer edge of the net. All of this had unfolded in at most a couple of seconds. Suspended now, hanging twenty meters above the hardpan, she had rocked her body like a pendulum and, with a quick tucking motion, vaulted out and over the net, landing on her clawed feet on the platform, where Arlo Wilson had shoved his cross against her chest and shot her, point-blank through the sweet spot.

In the lifting morning light, Arlo related these events to Peter and the others with vigorously specific detail. Arlo, like all the Wilson men, liked nothing more than a good story. He was not a Captain, but he seemed like one: a large man with a heavy beard and powerful arms and a genial manner that communicated confident strength. He had a twin brother, Hollis, identical in all respects except that he kept his face clean-shaven; Arlo’s wife, Leigh, was a Jaxon, Peter’s and Theo’s cousin, which made them cousins, too. Sometimes in the evenings, when he wasn’t standing the Watch, Arlo would sit under the lights in the Sunspot and play guitar for everyone, old folk tunes from a book left behind by the Builders, or go to the Sanctuary and play for the children as they readied for bed—funny, made-up songs about a pig named Edna who liked to wallow in the mud and eat clover all day. Now that Arlo had a Little of his own in the Sanctuary—a mewing bundle named Dora—it was generally assumed that he would serve at most a couple more years on the Wall before standing down to work some other, safer job.