Waff stirred beside her. "I heed Thy call, God," he said. "It is Waff of the Entio who prays in Thy Holy Place."
Odrade swiveled her gaze toward him without moving her head. Entio? Her Other Memories knew an Entio, a tribal leader in the great Zensunni Wandering, long before Dune. What was this? What ancient memories did these Tleilaxu keep alive?
Sheeana broke her silence. "Shaitan is slowing."
The remains of the ancient wall blocked their way. It loomed at least fifty meters over the highest dunes. The worm turned slightly to the right and moved between two giant boulders that towered above them. It came to a stop. The long ridged back lay parallel to a mostly intact section of the wall's base.
Sheeana stood and looked at the barrier.
"What is this place?" Waff asked. He raised his voice above the sound of the 'thopters circling overhead.
Odrade released her tiring grip and flexed her fingers. She continued to kneel while she studied their surroundings. Shadows from the tumbled boulders drew hard lines on sand spills and smaller rocks. Seen close up, not twenty meters away, the wall revealed cracks and fissures, dark openings into the ancient foundation.
Waff stood and massaged his hands.
"Why have we been brought here?" he asked. His voice was faintly plaintive.
The worm twitched.
"Shaitan wants us to get off," Sheeana said.
How does she know? Odrade wondered. The worm's movement had not been enough to make any of them stumble. It could have been some private reflex after the long journey.
But Sheeana faced the ancient wall's foundation, sat down on the curve of the worm and slid off. She dropped in a crouch on soft sand.
Odrade and Waff moved forward and watched with fascination as Sheeana slogged through the sand to the front of the creature. There, Sheeana placed both hands on her hips and faced the gaping mouth. Hidden flames played orange light across the young face.
"Shaitan, why are we here?" Sheeana demanded.
Again, the worm twitched.
"He wants all of you off him," Sheeana called.
Waff looked at Odrade. "If God wishes thee to die, He causes thy steps to lead thee to the place of thy death."
Odrade gave him back a paraphrase from the cant of the Shariat: "Obey God's messenger in all things."
Waff sighed. Doubt was plain on his face. But he turned and was first off the worm, dropping just ahead of Odrade. They followed Sheeana's example, moving to the front of the creature. Odrade, every sense alert, fixed her gaze on Sheeana.
It was much hotter in front of the gaping mouth. The familiar bite of melange filled the air around them.
"We are here, God," Waff said.
Odrade, getting more than a little tired of his religious awe, spared a glance for their surroundings - the shattered rocks, the eroded barrier reaching into the dusky sky, sand sloping against the time-scarred stones, and the slow scorching huff-huff of the worm's internal fires.
But where is here? Odrade wondered. What is special about this place to make it the worm's destination?
Four of the watching 'thopters passed in line overhead. The sound of their wing fans and the hissing jets momentarily drowned out the worm's background rumblings.
Shall I call them down? Odrade wondered. It would take only a hand signal. Instead, she lifted two hands in the signal for the watchers to remain aloft.
Evening's chill was on the sand now. Odrade shivered and adjusted her metabolism to the new demands. She felt confident that the worm would not engulf them with Sheeana beside them.
Sheeana turned her back on the worm. "He wants us to be here," she said.
As though her words were a command, the worm twisted its head away from them and slid off through the tall scattering of giant boulders. They could hear it speeding away back into the desert.
Odrade faced the base of the ancient wall. Darkness would be upon them soon but enough light remained in the high desert's long dusk that they might yet see some explanation of why the creature had brought them here. A tall fissure in the rock wall to her right seemed as good a place to investigate as any. Keeping part of her attention on the sounds from Waff, Odrade climbed a sandy incline toward the dark opening. Sheeana kept pace with her.
"Why are we here, Mother?"
Odrade shook her head. She heard Waff following.
The fissure directly in front of her was a shadowy hole into darkness. Odrade stopped and held Sheeana beside her. She judged the opening to be about a meter wide and some four times that in height. The rocky sides were curiously smooth, as though polished by human hands. Sand had drifted into the opening. Light from the setting sun reflected off the sand to bathe one side of the opening in a wash of gold.
Waff spoke from behind them: "What is this place?"
"There are many old caves," Sheeana said. "Fremen hid their spice in caves." She inhaled deeply through her nose. "Do you smell it, Mother?"
There was a definite melange odor to the place, Odrade agreed.
Waff moved past Odrade and into the fissure. He turned there, looking up at the walls where they met in a sharp angle above him. Facing Odrade and Sheeana, he backed farther into the opening, his attention on the walls. Odrade and Sheeana stepped closer to him. With an abrupt hissing of spilled sand, Waff vanished from their sight. In the same instant, the sand all around Odrade and Sheeana slipped forward into the fissure, dragging both of them with it. Odrade grabbed Sheeana's hand.
"Mother!" Sheeana cried.
The sound echoed from invisible rock walls as they slid down a long slope of spilling sand into concealing darkness. The sand drifted them to a stop in a final wash of gentle movement. Odrade, in sand up to her knees, extricated herself and pulled Sheeana with her onto a hard surface.