His memory provided the natural line of ascent, but only his body could learn the way by following that line. His left foot found a toehold . . . up . . . up . . . slowly, testing. Left hand up now . . . no crack but a ledge. His eyes, then his chin lifted over the high ledge he had seen from below. He elbowed his way onto it, rolled over and rested, looking only outward, not up or down. It was a sand horizon out there, a breeze with dust in it limiting the view. He had seen many such horizons in the Dune days.
