"Not the family atomics!" Jessica said. "I thought--"

"You planted a shield back there," Paul said.

"A big one turned to full force," Idaho said. "A lasgun beam touched it and

. . . " He shrugged.

"Subatomic fusion," Jessica said. "That's a dangerous weapon."

"Not weapon, m'Lady, defense. That scum will think twice before using lasguns another time."

The Fremen from the ornithopters stopped above them. One called in a low voice: "We should get under cover, friends."

Paul got to his feet as Idaho helped Jessica up.

"That blast will attract considerable attention, Sire," Idaho said.

Sire, Paul thought.

The word had such a strange sound when directed at him. Sire had always been his father.

He felt himself touched briefly by his powers of prescience, seeing himself infected by the wild race consciousness that was moving the human universe toward chaos. The vision left him shaken, and he allowed Idaho to guide him along the edge of the basin to a rock projection. Fremen there were opening a way down into the sand with their compaction tools.

"May I take your pack, Sire?" Idaho asked.

"It's not heavy, Duncan," Paul said.

"You have no body shield," Idaho said. "Do you wish mine?" He glanced at the distant cliff. "Not likely there'll be any more lasgun activity about."

"Keep your shield, Duncan. Your right arm is shield enough for me."

Jessica saw the way the praise took effect, how Idaho moved closer to Paul, and she thought: Such a sure hand my son has with his people.

The Fremen removed a rock plug that opened a passage down into the native basement complex of the desert. A camouflage cover was rigged for the opening.

"This way," one of the Fremen said, and he led them down rock steps into darkness.

Behind them, the cover blotted out the moonlight. A dim green glow came alive ahead, revealing the steps and rock walls, a turn to the left. Robed Fremen were all around them now, pressing downward. They rounded the corner, found another down-slanting passage. It opened into a rough cave chamber.

Kynes stood before them, jubba hood thrown back. The neck of his stillsuit glistening in the green light. His long hair and beard were mussed. The blue eyes without whites were a darkness under heavy brows.

In the moment of encounter, Kynes wondered at himself: Why am I helping these people? It's the most dangerous thing I've ever done. It could doom me with them.

Then he looked squarely at Paul, seeing the boy who had taken on the mantle of manhood, masking grief, suppressing all except the position that now must be assumed--the dukedom. And Kynes realized in that moment the dukedom still existed and solely because of this youth--and this was not a thing to be taken lightly.

Jessica glanced once around the chamber, registering it on her senses in the Bene Gesserit way--a laboratory, a civil place full of angles and squares in the ancient manner.

"This is one of the Imperial Ecological Testing Stations my father wanted as advance bases," Paul said.

His father wanted! Kynes thought.

And again Kynes wondered at himself. Am I foolish to aid these fugitives?

Why am I doing it? It'd be so easy to take them now, to buy the Harkonnen trust with them.

Paul followed his mother's example, gestalting the room, seeing the workbench down one side, the walls of featureless rock. Instruments lined the bench--dials glowing, wire gridex planes with fluting glass emerging from them.

An ozone smell permeated the place.

Some of the Fremen moved on around a concealing angle in the chamber and new sounds started there--machine coughs, the whinnies of spinning belts and multidrives.

Paul looked to the end of the room, saw cages with small animals in them stacked against the wall.

"You've recognized this place correctly," Kynes said. "For what would you use such a place, Paul Atreides?"

"To make this planet a fit place for humans," Paul said.

Perhaps that's why I help them, Kynes thought.

The machine sounds abruptly hummed away to silence. Into this void there came a thin animal squeak from the cages. It was cut off abruptly as though in embarrassment.

Paul returned his attention to the cages, saw that the animals were brown-winged bats. An automatic feeder extended from the side wall across the cages.

A Fremen emerged from the hidden area of the chamber, spoke to Kynes: "Liet, the field-generator equipment is not working. I am unable to mask us from proximity detectors."

"Can you repair it?" Kynes asked.

"Not quickly. The parts . . . " The man shrugged.

"Yes," Kynes said. "Then we'll do without machinery. Get a hand pump for air out to the surface."

"Immediately." The man hurried away.

Kynes turned back to Paul. "You gave a good answer."

Jessica marked the easy rumble of the man's voice. It was a royal voice, accustomed to command. And she had not missed the reference to him as Liet. Liet was the Fremen alter ego, the other face of the tame planetologist.

"We're most grateful for your help, Doctor Kynes," she said.

"Mm-m-m, we'll see," Kynes said. He nodded to one of his men. "Spice coffee in my quarters, Shamir."

"At once, Liet," the man said.

Kynes indicated an arched opening in the side wall of the chamber. "If you please?"

Jessica allowed herself a regal nod before accepting. She saw Paul give a hand signal to Idaho, telling him to mount guard here.

The passage, two paces deep, opened through a heavy door into a square office lighted by golden glowglobes. Jessica passed her hand across the door as she entered, was startled to identify plasteel.