She unclipped the carabiner and let go of the lazily spinning torus. Her momentum carried her toward the wall of the crevasse. Long accustomed to movement in zero gee, she timed a slow somersault and planted her feet on the wall to kill her speed, then turned on the magnets in her boots and began hiking up the crevasse wall. The weak gravity made directions arbitrary. Walking "vertically up" a cliff was little different from walking "horizontally along" the canyon floor.