Leto nodded to himself. Fremen had always known to plant predator fish in their water cisterns. The haploid sandtrout actively resisted great accumulations of water near the planet's surface; predators swam in that qanat below him. Their sandworm vector could handle small amounts of water - the amounts held in cellular bondage by human flesh, for example. But confronted by large bodies of water, their chemical factories went wild, exploded in the death-transformation which produced the dangerous melange concentrate, the ultimate awareness drug employed in a diluted fraction for the sietch orgy. That pure concentrate had taken Paul Muad'Dib through the walls of Time, deep into the well of dissolution which no other male had ever dared.
Ghanima sensed her brother trembling where he sat in front of her. "What have you done?" she demanded.
But he would not leave his own train of revelation. "Fewer sandtrout - the ecological transformation of the planet..."
"They resist it, of course," she said, and now she began to understand the fear in his voice, drawn into this thing against her will.
"When the sandtrout go, so do all the worms," he said. "The tribes must be warned."
"No more spice," she said.
Words merely touched high points of the system danger which they both saw hanging over human intrusion into Dune's ancient relationships.
"It's the thing Alia knows," he said. "It's why she gloats."
"How can you be sure of that?"
"I'm sure."
Now she knew for certain what disturbed him, and she felt the knowledge chill her.
"The tribes won't believe us if she denies it," he said.
His statement went to the primary problem of their existence: What Fremen expected wisdom from a nine-year-old? Alia, growing farther and farther from her own inner sharing each day, played upon this.
"We must convince Stilgar," Ghanima said.
As one, their heads turned and they stared out over the moonlit desert. It was a different place now, changed by just a few moments of awareness. Human interplay with that environment had never been more apparent to them. They felt themselves as integral parts of a dynamic system held in delicately balanced order. The new outlook involved a real change of consciousness which flooded them with observations. As Liet-Kynes had said, the universe was a place of constant conversation between animal populations. The haploid sandtrout had spoken to them as human animals.
"The tribes would understand a threat to water," Leto said.
"But it's a threat to more than water. It's a -" She fell silent, understanding the deeper meaning of his words. Water was the ultimate power symbol on Arrakis. At their roots Fremen remained special-application animals, desert survivors, governance experts under conditions of stress. And as water became plentiful, a strange symbol transfer came over them even while they understood the old necessities.
"You mean a threat to power," she corrected him.
"Of course."
"But will they believe us?"
"If they see it happening, if they see the imbalance."
"Balance," she said, and repeated her father's words from long ago: "It's what distinguishes a people from a mob."
Her words called up their father in him and he said: "Economics versus beauty - a story older than Sheba." He sighed, looked over his shoulder at her. "I'm beginning to have prescient dreams, Ghani."
A sharp gasp escaped her.
He said: "When Stilgar told us our grandmother was delayed - I already knew that moment. Now my other dreams are suspect."
"Leto..." She shook her head, eyes damp. "It came later for our father. Don't you think it might be -"
"I've dreamed myself enclosed in armor and racing across the dunes," he said. "And I've been to Jacurutu."
"Jacu..." She cleared her throat. "That old myth!"
"A real place. Ghani! I must find this man they call The Preacher. I must find him and question him."
"You think he's... our father?"
"Ask yourself that question."
"It'd be just like him," she agreed, "but..."
"I don't like the things I know I'll do," he said. "For the first time in my life I understand my father."
She felt excluded from his thoughts, said: "The Preacher's probably just an old mystic."
"I pray for that," he whispered. "Oh, how I pray for that!" He rocked forward, got to his feet. The baliset hummed in his hand as he moved. "Would that he were only Gabriel without a horn." He stared silently at the moonlit desert.
She turned to look where he looked, saw the foxfire glow of rotting vegetation at the edge of the sietch plantings, then the clean blending into lines of dunes. That was a living place out there. Even when the desert slept, something remained awake in it. She sensed that wakefulness, hearing animals below her drinking at the qanat. Leto's revelation had transformed the night: this was a living moment, a time to discover regularities within perpetual change, an instant in which to feel that long movement from their Terranic past, all of it encapsulated in her memories.
"Why Jacurutu?" she asked, and the flatness of her tone shattered the mood.