Kathree moved toward the boulder. The destruction of one of Cantabrigia Five’s video buckies made it a good place for her to be. She was churning headlong toward the base of the rock, wondering how she was going to find her way to the top, when movement above caught her eye. She stopped and looked steeply upward at a Digger who had just emerged onto its crown to claim the vacated high ground. He had come down the slope so impetuously that he nearly overran the top of the boulder. He had to plant a foot just short of disaster and wheel his arms backward to regain his balance. As he did so the arrowheads clinked together in his quiver. Kathree froze and crouched, watching him regain his equilibrium. Had he looked straight down he’d have seen her, but he had eyes only for what was going on to his right: judging from sounds, the beginnings of a confused fight in a cluttered place. The Digger reached back, drew out a single shaft, and nocked it to his steel bow, looking out over the scene of the action below. He was thinking about choosing a target when Kathree’s ambot hit him in the shoulder and sent him down twitching.