Sensing movement and hearing the discharge of her katapult, the siwi—which apparently had some rudimentary ability to follow what was interesting—swiveled in her direction, but she stomped at its neck from behind. It gave way beneath the impact of her heel and made a creditable effort to remain standing, but was forced to uncoil itself so as to effect a soft landing on the ground. From there it might have pursued her into the trees, had it been programmed for pursuit. But it was really nothing more than a moderately smart camera platform, and so it stayed where it was, doggedly trying to center the face of the Aretaic in the middle of its frame. Since the Aretaic was rolling and writhing like a man on fire, this gave its algorithms a vigorous workout.