"Look!" he called. "The worm does my bidding!"

As she stood in frozen shock, he whirled, went racing around the worm and into the canyon. Gaining experience with his new skin, he found he could run with only the lightest flexing of muscles. It was almost effortless. When he put effort into running, he raced over the sand with the wind burning the exposed circle of his face. At the canyon's dead end instead of stopping, he leaped up a full fifteen meters, clawed at the cliff, scrabbled, climbing like an insect, and came out on the crest above the Tanzerouft.

The desert stretched before him, a vast silvery undulance in the moonlight.

Leto's manic exhilaration receded.

He squatted, sensing how light his body felt. Exertion had produced a slick film of perspiration which a stillsuit would have absorbed and routed into the transfer tissue which removed the salts. Even as he relaxed, the film disappeared now, absorbed by the membrane faster than a stillsuit could have done it. Thoughtfully Leto rolled a length of the membrane beneath his lips, pulled it into his mouth, and drank the sweetness.

His mouth was not masked, though. Fremen-wise, he sensed his body's moisture being wasted with every breath. Leto brought a section of the membrane over his mouth, rolled it back when it tried to seal his nostrils, kept at this until the rolled barrier remained in place. In the desert way, he fell into the automatic breathing pattern: in through his nose, out through his mouth. The membrane over his mouth protruded in a small bubble, but remained in place. No moisture collected on his lips and his nostrils remained open. The adaptation proceeded, then.

A 'thopter flew between Leto and the moon, banked, and came in for a spread-wing landing on the butte perhaps a hundred meters to his left. Leto glanced at it, turned, and looked back the way he had come up the canyon. Many lights could be seen down there beyond the qanat, a stirring of a multitude. He heard faint outcries, sensed hysteria in the sounds. Two men approached him from the 'thopter. Moonlight glinted on their weapons.

The Mashhad, Leto thought, and it was a sad thought. Here was the great leap onto the Golden Path. He had put on the living, self-repairing stillsuit of a sandtrout membrane, a thing of unmeasurable value on Arrakis... until you understood the price. I am no longer human. The legends about this night will grow and magnify it beyond anything recognizable by the participants. But it will become truth, that legend.

He peered down from the butte, estimated the desert floor lay two hundred meters below. The moon picked out ledges and cracks on the steep face but no connecting pathway. Leto stood, inhaled a deep breath, glanced back at the approaching men, then stepped to the cliff's edge and launched himself into space. Some thirty meters down his flexed legs encountered a narrow ledge. Amplified muscles absorbed the shock and rebounded in a leap sideways to another ledge, where he caught a narrow outcropping with his hands, dropped twenty meters, leaped to another handhold and once more went down, bouncing, leaping, grasping tiny ledges. He took the final forty meters in one jump, landing in a bent-knee roll which sent him plunging down the slip-face of a dune in a shower of sand and dust. At the bottom he scrambled to his feet, launched himself to the next dunecrest in one jump. He could hear hoarse shouts from atop the cliff but ignored them to concentrate on the leaping strides from dunetop to dunetop.

As he grew more accustomed to amplified muscles he found a sensuous joy that he had not anticipated in this distance-gulping movement. It was a ballet on the desert, defiance of the Tanzerouft which no other had ever experienced.

When he judged that the ornithopter's occupants had overcome their shock enough to mount pursuit once more, he dove for the moon-shadowed face of a dune, burrowed into it. The sand was like heavy liquid to his new strength, but the temperature mounted dangerously when he moved too fast. He broke free on the far face of the dune, found that the membrane had covered his nostrils. He removed it, sensed the new skin pulsing over his body in its labor to absorb his perspiration.

Leto fashioned a tube at his mouth, drank the syrup while he peered upward at the starry sky. He estimated he had come fifteen kilometers from Shuloch. Presently a 'thopter drew its pattern across the stars, a great bird shape followed by another and another. He heard the soft swishing of their wings, the whisper of their muted jets.

Sipping at the living tube, he waited. First Moon passed through its track, then Second Moon.

An hour before dawn Leto crept out and up to the dunecrest, examined the sky. No hunters. Now he knew himself to be embarked upon a path of no return. Ahead lay the trap in Time and Space which had been prepared as an unforgettable lesson for himself and all of mankind.

Leto turned northeast and loped another fifty kilometers before burrowing into the sand for the day, leaving only a tiny hole to the surface which he kept open with a sandtrout tube. The membrane was learning how to live with him as he learned how to live with it. He tried not to think of the other things it was doing to his flesh.

Tomorrow I'll raid Gara Rulen, he thought. I'll smash their qanat and loose its water into the sand. Then I'll go on to Windsack, Old Gap, and Harg. In a month the ecological transformation will have been set back a full generation. That'll give us space to develop the new timetable.

And the wildness of the rebel tribes would be blamed, of course. Some would revive memories of Jacurutu. Alia would have her hands full. As for Ghanima... Silently to himself, Leto mouthed the words which would restore her memory. Time for that later... if they survived this terrible mixing of threads.

The Golden Path lured him out there on the desert, almost a physical thing which he could see with his open eyes. And he thought how it was: as animals must move across the land, their existence dependent upon that movement the soul of humankind, blocked for eons, needed a track upon which it could move.

He thought of his father then, telling himself: "Soon we'll dispute as man to man, and only one vision will emerge."

Alia sat cross-legged on her bed, trying to compose herself by reciting the Litany Against Fear, but chuckling derision echoed in her skull to block every effort. She could hear the voice; it controlled her ears, her mind.

"What nonsense is this? What have you to fear?"

The muscles of her calves twitched as her feet tried to make running motions. There was nowhere to run.

She wore only a golden gown of the sheerest Palian silk and it revealed the plumpness which had begun to bulge her body. The Hour of Assassins had just passed; dawn was near. Reports covering the past three months lay before her on the red coverlet. She could hear the humming of the air conditioner and a small breeze stirred the labels on the shigawire spools.

Aides had awakened her fearfully two hours earlier, bringing news of the latest outrage, and Alia had called for the report spools, seeking an intelligible pattern.