Dura stared into the deep, menacing depths of the model. It was as if, here in the belly of the City, she had been transported to the Core itself and left to face this bizarre, monstrous entity alone.

8

CLUTCHING HIS SURFBOARD, Cris led Farr through the heart of the City.

They followed a tangle of subsidiary streets, avoiding the main routes. Farr tried to memorize their path, but his rudimentary sense of City-bound direction was soon overwhelmed. Lost, baffled, but following Cris doggedly, he involuntarily glanced around, looking for the Quantum Sea, the angle of the vortex lines to orient himself. But of course, here deep in the guts of Parz, the faceless wooden walls hid the world.

After a time, though, he realized that they must have passed below the City's rough equator and moved into the region called the Downside. The walled streets here were meaner, with illumination shafts and wood-lamps far separated. There were few cars and fewer Wavers, and the doors to dwelling-places off the Downside streets, battered and dirty, looked impenetrably solid. Cris didn't comment on the changed environment — he kept up his chatter of Surfing as if oblivious — but Farr noticed how the City boy kept his precious board clutched tight against his chest, shielding it with his body.

At length they came to a wide, oval port set in a street wall. The shaft beyond this port, about ten mansheights across, was much plainer than any City street — long and featureless, and with scuffed, unfinished-looking walls — but it led, Farr saw, to an ellipse of clear, precious Airlight. He stared hungrily into that light, marveling at how the bright yellow glow glittered from scraped-smooth patches of wall.

"Are we going down here?"

"Through this cargo port? Out through the Skin? But that's against City ordinances..." Cris grinned. "You bet we are." With a whoop, Cris placed one hand on the lip of the elliptical entrance and somersaulted into the shaft. His board clutched above his head, he flapped his arms, Waving in reverse feet-first down the shaft. Farr, clumsier, clambered over the lip of the port and plunged down. Laughing, their voices echoing from the wooden walls, the boys tumbled toward the open Air.

Farr shot out of the oppressive wall of the City and spread his arms and legs, drinking in the yellow-shining Air and staring up at the arc of the vortex lines.

Cris was looking at him skeptically. "Are you okay?"

"I'm just glad to be out in the Air... even if it is this sticky Polar stuff."

"Right. Not like back in the good old upflux, eh?" Cris leveled his board, flexed it with the palm of his hand experimentally against the Magfield.