"Perhaps people at a distance. You're never certain."
"What people?"
"I've already told you."
"What would you've done if you'd seen anyone?"
"It was the Fremen custom to treat distant people as hostile until they threw sand into the air."
As he spoke, darkness fell over them like a curtain.
Siona became ghostly movement in the sudden starlight. "Sand?" she asked.
"Thrown sand is a profound gesture. It says: `We share the same burden. Sand is our only enemy. This is what we drink. The hand that holds sand holds no weapon.' Do you understand this?"
"No!" She taunted him with a defiant falsehood.
"You will," he said.
Without a word, she set out along the arc of their dune, striding away from him with an angry excess of energy. Leto allowed himself to fall far behind her, interested that she had instinctively chosen the right direction. Fremen memories could be felt churning in her.
Where the dune dipped to cross another, she waited for him. He saw that the face flap of her stillsuit remained open, hanging loose. It was not yet time to chide her about this. Some unconscious things had to run their natural course.
As he came up to her, she said: "Is this as good a direction as any other?"
"If you keep to it," he said.
She glanced up at the stars and he saw her identify the Pointers, those Fremen Arrows which had led her ancestors across this land. He could see, though, that her recognition was mostly intellectual. She had not yet come to accept the other things working within her.
Leto lifted his front segments to peer ahead in the starlight. They were moving a little west of north on a track that once had led across Habbanya Ridge and Cave of Birds into the erg below False Wall West and the way to Wind Pass. None of those landmarks remained. He sniffed a cool breeze with flint smells in it and more moisture than he found pleasant.
Once more, Siona set off-slower this time, holding her course by occasional glances at the stars. She had trusted Leto to confirm the way, but now she guided herself. He sensed the turmoil beneath her wary thoughts, and he knew the things which were emerging. She had the beginnings of that intense loyalty to traveling companions which desert folk always trusted.
We know, he thought. If you are separated from your companions, you are lost among dunes and rocks. The lone traveler in the desert is dead. Only the worm lives alone out here.
He let her get well ahead of him where the grating sand of his passage would not be too prominent. She had to think of his human-self. He counted on loyalty to work for him. Siona was brittle, though, filled with suppressed rage-more of a rebel than any other he had ever tested.
Leto glided along behind her, reviewing the breeding program, shaping the necessary decisions for a replacement should she fail.
As the night progressed, Siona moved slower and slower. First Moon was high overhead and Second Moon well above the horizon before she stopped to rest and eat.
Leto was glad of the pause. Friction had set up a worm dominance, the air around him full of the chemical exhalations from his temperature adjustments. The thing he thought of as his oxygen supercharger vented steadily, making him intensely aware of the protein factories and amino acid resources his worm-self had acquired to accommodate the placental relationship with his human cells. Desert quickened the movement toward his final metamorphosis.
Siona had stopped near the crest of a star dune. "Is it true that you eat the sand?" she asked as he came up to her.
"It's true."
She stared all around the moon-frosted horizon. "Why didn't we bring a signal device?"
"I wanted you to learn about possessions."
She turned toward him. He sensed her breath close to his face. She was losing too much moisture into the dry air. Still, she did not remember Moneo's admonition. It would be a bitter lesson, no doubt of that.
"I don't understand you at all," she said.
"Yet, you are committed to doing just that."
"Am I?"
"How else can you give me something of value in exchange for what I give you?"
"What do you give me?" All of the bitterness was there and a hint of the spice from her dried food.
"I give you this opportunity to be alone with me, to share with me, and you spend this time without concern. You waste it."
"What about possessions?" she demanded.
He heard fatigue in her voice, the water message beginning to scream within her.
"They were magnificently alive in the old days, those Fremen," he said. "And their eye for beauty was limited to that which was useful. I never met a greedy Fremen."
"What's that supposed to mean?"
"In the old days, everything you took into the desert was a necessity and that was all you took. Your life is no longer free of possessions, Siona, or you would not have asked about a signal device."
"Why isn't a signal device necessary?"
"It would teach you nothing."
He moved out around her along the track indicated by the Pointers. "Come. Let us use this night to our profit."
She came hurrying up to walk beside his cowled face. "What happens if I don't learn your damned lesson?"
"You'll probably die," he said.
That silenced her for a time. She trudged along beside him with only an occasional sideward glance, ignoring the worm-body, concentrating on the visible remnants of his humanity. After a time, she said: "The Fish Speakers told me that you ordered the mating from which I was born."
"That's true."
"They say you keep records and that you order these Atreides matings for your own purposes."