At such times, a traveler who knew nothing of orbiting tethers and the like, emerging from the woods or cresting some nearby hill, and coming into view of Cradle, would perceive it as a normal, which was to say stationary, city. The bucket handle arching high over its top was a heavy hint that something was a bit odd about it. Other than that, however, it would look, in that context, like a somewhat isolated hill fort.