Then, moving down the gutter below the internal balustrade, came a thin stream of fluid, working its way around the old tyres and the piles of leaves and birds’ nests. Thinking that this was Olds’ pathetic attempt to douse the fire Stiliman had started, Halloway grappled with the guard, trying to wrest the shotgun from him. As they struggled together by the staircase he saw that the stream had expanded into a broad sheet, as wide as the sloping floor, moving swiftly like a tidal race. It swilled below the land-cruisers and around the wheels of the burning cars, touched here and there by the nimbus of a flame. The fluid overran Stillman’s feet as he and his men turned and ran for their lives, splashing through the fast-moving sluice. In the last seconds, as the whole floor lit up in a sudden bloom of flame, illuminating the running figures trapped in the centre of this sloping furnace, Halloway hurled himself down the staircase. The sounds of explosions followed him to the ground floor.
So Olds had opened the stopcocks on the fuel tanks of the cars on the ninth and tenth floors. When Halloway reached the road the upper three storeys of the garage were aflame. Powerful explosions were ripping apart the limousines, sports-cars and open tourers that Olds had collected so carefully. Window glass and pieces of sharp chrome flicked through the air, landing on the sidewalk around him as he crouched behind an airline van. Fifty feet high, the flames of the burning gasolene rose into a sluggish tower of smoke two hundred yards in diameter.
Most of Stillman’s men had driven off, these youths in their black uniforms and large cars frightened by the violence of the explosions. Three others had remained behind, waiting with their rifles raised, but Halloway was certain that both Olds and Stillman had already died.
High above him, a propeller whirled through the smoke. The sailplane moved across the roof, lining itself up for take-off. Olds’ slim figure was crouched in the cockpit, face hidden by the antique helmet. The engine deepened its roar, and the aircraft with its long drooping wings sped forward down the sloping roof. As it left the building and sailed into the open air it seemed to fall towards the ground, but its wings suddenly climbed on to the light wind crossing the airport. It soared along, engine blaring, a few feet above the cars parked nose-to-tail down the runway, and shook off the oily smoke that still wreathed its wings and fuselage. It flew on steadily, gaining altitude as it cleared the perimeter fence. Moving northwards towards the Sound, it made a careful left-hand turn, three hundred feet above the ground. It set off across the river, wings rocking as Olds tested the controls. Halfway across the river it picked up a flight of wild duck which were circling the city, and then joined a stream of petals half a mile long that was being carried away by the wind. Together, the three flights — the wild duck and the stream of petals, and Olds in his sailplane — flew on to the north-west, parting company when they crossed the ruined suspension bridge. Halloway waited as the sailplane, little more than a point of light reflected from its propeller, climbed higher into the secure sky, and finally vanished on its way westwards across the continent.
When he had driven back to the city Halloway left his car in the square. Standing beside Buckmaster’s memorial, he watched the supermarkets and stores, the bars and amusement arcades close themselves down. Almost everyone had left now, as the young people made their way back to their garden settlements.
Halloway waited until they had all gone. The last of the generators had run out of fuel, dimming the lights in the police-station. He walked through the streets, picking his way over the broken glass and burnt-out cables, past dozens of abandoned cars. Discarded banknotes, printed with his own name, drifted along the roadway.
In the space of only a few months he had managed to achieve what had taken this metropolis as a whole more than a hundred and fifty years to do. However, it had all been worthwhile. He knew now that he would never return to Garden City, with its pastoral calm. In the morning, after he had rested, he would set off on foot, searching for Olds and the sailplane, following the memorials westwards across the continent, until he found the old man again and could help him raise his pyramids of washing machines, radiator-grilles and typewriters. Somehow he would come to terms with Miranda, and help her to re-forest the cities. Maybe, then, she would wear her wedding dress again for him.