Any report of Rothar's motivations* can only be speculative, because the sandworm he had grasped rolled quickly, raising the segment the young Fremen had opened high above the surface of the sand (thereby putting Rothar on top of its body, as well). It then sped off into the desert, with Rothar as passenger, Within days, the first crude maker hooks (designed to catch and hold open the edge of a worm's skin segments) had been fashioned and volunteers from every sietch were becoming sandriders. Refined techniques were costly to learn, and many of the earliest practitioners were killed in the attempt, but within another generation the Fremen's means of travel was firmly established. It became customary for a Fremen youth to call his first maker at the age of twelve. (Earlier, the youth would have ridden the worms only as a passenger or steersman, never as mudir-ruler-of the ride.) The naib of the youth's sietoh, along with various other men and a Sayyadina, accompanied him to the sand. The naib spoke the words of the ritual developed over the centuries to the would-be sandrider; the other men loaned thumper and hooks, since it was considered ill luck for a boy not yet a rider to own such things; and the Sayyadina, aloof from the proceedings, observed so that the events of the day could be properly recorded. If the youth was successful-and the majority were, once the ways of the worm were better known-it was his privilege as, mudir of the sandride, to command the steersmen. At his "Haiiiii-yoh!" they would mount the worm behind him, followed by the rest of the witnesses. Then, following his calls of "Ach" (left turn) or "Derch" (right turn), they would guide the monster as he wished it guided. Not even the Naib of the youth's sietch would counter his orders until the ride had run its course. The young mudir, as first on, had also to be last off, a position that could be dangerous if the worm was still fresh and prepared to turn when the annoying hooks were removed. During first rides, however, the worm was usually ridden nearly into exhaustion; it would be far more eager to escape and rest than to attack. That the Fremen held such power over the worms was one of their best-guarded secrets during the years of their oppression, and the art's existence did not become widely known until Paul Muad'Dib Atreides became emperor. C.W. Further references: MAKER HOOKS; THUMPER, Jairet Oslo, Fremen: Lives and Legend (Salusa Secundus: Morgan and Sbarak) YC1EH, WELLINGTON (10082-10191). The most notorious graduate of the Suk School of Medicine. The basic facts of his life that reputable scholars can agree upon arc few. However, we are sure that he died in 10191 in the Harkonnen raid on Duke Leto Atreides' stronghold on Dune, and that Yueh was married to a Bene Gessent adept named