The morning sunlight crossed the instrument panel of the car, creeping through the coils of blackened wiring. Around the smoke-streaked windows the tall grass swayed in the warm air. In these first minutes after he had woken, Maitland lay against the rear seat, looking through the smeared glass at the motorway embankment. He brushed at the mud caked across the lapels of his dinner-jacket. It was eight ten a. m. He was surprised by the complete silence of the surrounding landscape, the uncanny absence of that relentless roar of rush-hour vehicles which had woken him the previous morning. It was almost as if some idle-minded technician responsible for maintaining the whole illusion of his marooning on the island had forgotten to switch on the sound.

Maitland stirred his cramped body. His swollen leg lay alongside him like the limb of some partly invisible companion. By contrast, the rest of his once-heavy physique had shrunk during the night. The bones of his shoulders and rib-cage pointed through his bruised skin, as if trying to detach themselves from the surrounding musculature. Maitland ran his torn nails through the light beard beginning to cover his face. Already he was thinking of the chicken sandwich he had eaten before falling asleep. The bland, fatty taste of meat and salad cream still clung to his teeth.

Maitland sat forward over the front seat, peering down at the springs that protruded through the charred leather. Although he was now far weaker physically, his mind felt clear and alert. He knew that whatever he decided to do in his attempt to escape from the island, he must not exhaust himself. He remembered the hostility he had felt for his injured body, and the calculated way in which he had abused himself in order to keep going. From now on, he must relax a little, husband his self-confidence. It might take several hours to devise a means of escape, perhaps another day.

His basic needs, a few of which he could meet, were for water, food, shelter, and some kind of signalling device. He would never be able to escape from the island unaided – the embankments were too steep, and even if he could winch himself to the top he would be barely conscious by the time he climbed the balustrade. Tottering across the road, he might easily be killed by a passing truck.

Maitland pushed back the door and picked up the crutch. Even this small effort made his head swim. He leaned against the seat as the blades of crushed grass sprang through the open door, reaching into the car against his leg. The resilience of this coarse grass was a model of behaviour and survival.

Maitland vomited emptily against the door, watching the globes of silver mucus drip on to the carpet. He lifted himself unsteadily on to the crutch and leaned against the car, doubting whether he would be able to stand for long. The mud-smeared dinner-jacket flapped around him in the light wind, several sizes too large for his gaunt shoulders.

He hobbled forward, inspecting the damage to the Jaguar. Patches of the grass around the car had been burned away, exposing circles of charred earth. The fire had destroyed the battery and engine wiring, burning through the instrument panel bulkhead into the front passenger compartment.

'Damned quiet…' Maitland murmured aloud to himself. No cars or airline buses moved along the motorways. The aerial balconies of the apartment blocks were deserted in the sunlight.

Where the devil was everyone? God… some kind of psychosis. Nervously, Maitland pivoted on the crutch. He hobbled across the charred earth, trying to find a single tenant of this abandoned landscape. Had a world war broken out overnight? Perhaps the source of a virulent plague had been identified somewhere in central London. During the night, as he lay asleep in the burnt-out car, an immense silent exodus had left him alone in the deserted city.

Three hundred yards to the west of the island's apex, beyond the junction of the motorway and the feeder road, a single figure appeared. An elderly man approached the island, pushing a light motorcycle along the eastbound carriageway. He was partly hidden by the central reservation, but in the bright sunlight Maitland could clearly see his long white hair swept back off his forehead on to his shoulders.

As he watched this old man pushing along his silent machine, Maitland was overcome by a sudden sense of fear that drove away all awareness of his hunger and exhaustion. By some nightmare logic he was convinced that the old man was coming for him, perhaps not now but by some circuitous route through the labyrinth of motorways, and that he would eventually arrive to summon Maitland to the point where he had crashed. Moreover, Maitland was certain that this machine he was wheeling was not in fact a light motorcycle, but an horrific device of torture that the old man brought with him on his endless journey around the world, and against whose chain-driven wheels Maitland's already broken body would be applied in a grim judgement by ordeal.

Galvanizing himself, Maitland began to hobble at random around the breaker's yard, swaying and tottering in this circle of dead fire. The man's white head was still visible along the eastbound carriageway, eyes fixed on the empty road curving ahead of him. His shabby clothes and antique machine were illuminated by the sunlight.

Maitland crouched in the grass, grateful to this deep bower for hiding him from the approaching figure. He looked at his watch, noticing the date dial at the same moment as an empty car transporter lumbered through the tunnel of the overpass, its diesel braying.

April 24th…

Saturday! The weekend had begun. He had crashed on Thursday afternoon, and had now spent two nights on the island. It was Saturday morning, and this explained the silence and absence of traffic.

Light-headed with relief, Maitland hobbled back to the Jaguar. He drank some water to steady himself. The old man and his motorcycle had gone, hidden somewhere beyond the overpass. Maitland massaged his arms and chest, trying to master his trembling. Had he imagined this solitary figure, conjuring up the spectre of some infantile guilt?

He looked around the perimeter of the island, carefully scanning the embankments in case any falls of food had taken place during the night. Parcels of newspaper, the bright tags of confectionery wrappers – somehow he must find something to eat. The four bottles of Burgundy would keep him going in an emergency, and there must be edible berries growing on the island, perhaps a forgotten allotment garden with a row of wild potatoes.

The caisson of the feeder road indicator sign caught his eye. The rain-washed concrete shone brightly in the sunlight like an empty notice-board. A message scrawled across it in three-feet-high letters would be legible to drivers on the motorway…

Maitland swung himself around the car. He needed writing materials of some kind, or failing that, a tool sharp enough to scratch the concrete so that he could rub dirt into the scored surface.

The stench of burnt rubber and oil hung over the engine compartment. Maitland looked down at the blackened wiring hanging from the distributor. One by one, he pulled the terminals from the sparking plugs and filled his pockets with the burnt rubber guards.

Half an hour later he had crossed the island and was sitting beside the white slope of the caisson. His legs stretched in front of him like ragged poles. The effort of pushing through the long grass had soon exhausted Maitland. At places in the central valley the vegetation rose shoulder-high. Several times he had fallen over the stone walls and brickwork courses hidden beneath the grass, but he picked himself up and doggedly pushed ahead. By now he ignored the nettles that stung his legs through the torn fabric of his trousers, accepting these burning weals in the same way that he accepted his own weariness. By doing so he found he could concentrate on whatever task lay in front of him – the next painful push through a nettle bank, a difficult step across a tilting flagstone. In some way, this act of concentration proved that he could dominate the island.

From the pockets of his dinner-jacket he took out the plug caps and burnt rubber leads he had twisted from the engine. Like a child at play, Maitland set out the pieces of charred rubber in two rows in front of him.

He was too tired to stand, but he could reach to within four feet of the ground. Carefully, in wavering letters eighteen inches high, he marked up his message.

HELP INJURED DRIVER CALL POLICE

Leaning against the cold concrete, Maitland surveyed his handiwork. Like a dying pavement artist in a rich man's cast-off, he pulled the damp dinner-jacket around his thin shoulders. But his hungry eyes soon turned their interest to the cigarette packs, tattered newspapers and refuse lying around him at the foot of the embankment.

Ten feet away from Maitland was a bundle of greasy newspaper, tossed down during the night from a car or truck moving along the feeder road. Cooking oil leaked through the crushed pages. Pulling himself together, Maitland crawled towards the newspaper. He drew the bundle to him with the handle of the crutch. Fumbling in his hunger, he tore open the paper, overwhelmed by the smell of fried fish that clung to the smeary half-tone illustrations. The food had probably been bought by the driver at one of the all-night cafes that formed a small encampment by the southern entrance to the Westway interchange.

All the fish had gone – however, as Maitland had guessed from the neat way the parcel had been wrapped, it still held some twenty fried potatoes.

As he devoured these greasy fingers in his blackened hands, the first rain of the day struck the dust around his legs. Chuckling to himself, Maitland stuffed the paper into the pocket of his dinner-jacket. He lifted himself to his feet and moved away through the deep grass. The roads around the island were deserted again. Carried by a brisk north-east wind, armadas of dark cloud swept overhead. Alone in this concrete landscape, Maitland tottered along, hoping to reach the shelter of his car. He looked back briefly at the letters he had chalked on the embankment, but they were barely visible above the grass.

The rain gusted across him before he could reach the central valley, forcing him to stop and cling to the crutch. Maitland looked down at his waving hands, moving about in a meaningless semaphore as the rain streamed across them. He knew that he was not merely exhausted, but behaving in a vaguely eccentric way, as if he had forgotten who he was. Parts of his mind seemed to be detaching themselves from the centre of his consciousness.

He stopped to search for shelter. The grass seethed and whirled around him, as if sections of this wilderness were speaking to each other. Maitland let the rain lash his face, turning his head so that he could catch the drops in his mouth. Surrounded by the squalls of rain, he was tempted to stand there for ever, and only reluctantly pushed himself forward.