"I'll damn well Wave there if I have to," Adda growled. "If I can't get one of your citizens to take me home in one of those pig-drawn cars you have."

Muub was tempted to mock. He tried to summon up sympathy, to put himself in Adda's situation — alone and far from home in a place he must find frighteningly strange, despite his bravado. "My friend," he said evenly, "with all respect to the skills of my staff in the Common Good, and to the remarkable progress you are making... I have to say it will be a long time before you are fit for such a journey. Even by car, the trek would kill you."

Adda snarled. "I'll take my chances."

"And if you made it home you'd never be as strong as you were, frankly. Your pneumatic system has been weakened to well below its nominal level."

Adda's response, when it came, seemed doubtful. "I couldn't hunt?"

"No." Muub shook his head firmly. "Even if you were able to Wave fast enough to creep up on, let us say, an aged and unfit Air-pig..." — that won a slight smile from the upfluxer — "even so, you could never survive the low pressures, the thin Air of the upperMantle. You see, you would be a burden on your people if you returned. I'm sorry."

Adda's anger was apparently directed inward now. "I will not be a burden. I wanted to die, after my injury. You did not allow me to die."

"It was the choice of your companions. They did not allow you to die; they sold their labor to pay for your continued health. Adda, you owe it to them to maximize the usefulness of your new life."

Adda shook his head stiffly, the bandaging rustling at his neck. "I cannot return home. But I have nothing here."

"Perhaps you could find work. Anything you could earn would reduce the burden on your friends." ...And help besides, Muub forbore to add, to pay for Adda's own food and shelter once his medical treatment was concluded.

"What could I do? Do you hunt here? I can't see myself being much use stalking blades of mutated grass."

They had come now to a simulation of the wild Crust-forest. Dwarf Crust-trees — slender whips no taller than a mansheight — thrust out of the roof of Parz. A clutch of young ray, shackled to the roof surface by short lengths of rope, snapped at them as they passed. Muub glanced at Adda, curious about the old man's reaction to this toy forest. But Adda had turned his face up to the vortex lines swooping over the City; his good eye was half-closed, as if he were peering at something, and the leech crawled, ignored, over his face.

Muub hesitated. "When I first encountered you, you were swaddled in makeshift bandages. And you had splints... Do you remember? The splints seemed actually to be spears, of varying lengths and thicknesses. All decorated with fine engravings."