When he threw the latch, the thumper would begin its summons. Across the sand, a giant worm—a maker—would hear and come to the drumming. With the whiplike hook-staffs, Paul knew, he could mount the maker’s high curving back. For as long as a forward edge of a worm’s ring segment was held open by a hook, open to admit abrasive sand into the more sensitive interior, the creature would not retreat beneath the desert. It would, in fact, roll its gigantic body to bring the opened segment as far away from the desert surface as possible.
