The cat stepped forward—and vanished.

Will blinked. Then he stood still, close to the trunk of the nearest tree, as a truck came around the circle and swept its lights over him. When it had gone past, he crossed the road, keeping his eyes on the spot where the cat had been investigating. It wasn't easy, because there was nothing to fix on, but when he came to the place and cast about to look closely, he saw it.

At least, he saw it from some angles. It looked as if someone had cut a patch out of the air, about two yards from the edge of the road, a patch roughly square in shape and less than a yard across. If you were level with the patch so that it was edge-on, it was nearly invisible, and it was completely invisible from behind. You could see it only from the side nearest the road, and you couldn't see it easily even from there, because all you could see through it was exactly the same kind of thing that lay in front of it on this side: a patch of grass lit by a streetlight.

But Will knew without the slightest doubt that that patch of grass on the other side was in a different world.

He couldn't possibly have said why. He knew it at once, as strongly as he knew that fire burned and kindness was good. He was looking at something profoundly alien.

And for that reason alone, it enticed him to stoop and look further. What he saw made his head swim and his heart thump harder, but he didn't hesitate: he pushed his tote bag through, and then scrambled through himself, through the hole in the fabric of this world and into another.

He found himself standing under a row of trees. But not hornbeam trees: these were tall palms, and they were growing, like the trees in Oxford, in a row along the grass. But this was the center of a broad boulevard, and at the side of the boulevard was a line of cafés and small shops, all brightly lit, all open, and all utterly silent and empty beneath a sky thick with stars. The hot night was laden with the scent of flowers and with the salt smell of the sea.

Will looked around carefully. Behind him the full moon shone down over a distant prospect of great green hills, and on the slopes at the foot of the hills there were houses with rich gardens, and an open parkland with groves of trees and the white gleam of a classical temple.

Just beside him was that bare patch in the air, as hard to see from this side as from the other, but definitely there. He bent to look through and saw the road in Oxford, his own world. He turned away with a shudder: whatever this new world was, it had to be better than what he'd just left. With a dawning lightheadedness, the feeling that he was dreaming but awake at the same time, he stood up and looked around for the cat, his guide.

She was nowhere in sight. No doubt she was already exploring those narrow streets and gardens beyond the cafés whose lights were so inviting. Will lifted up his tattered tote bag and walked slowly across the road toward them, moving very carefully in case it all disappeared.

The air of the place had something Mediterranean or maybe Caribbean about it. Will had never been out of England, so he couldn't compare it with anywhere he knew, but it was the kind of place where people came out late at night to eat and drink, to dance and enjoy music. Except that there was no one here, and the silence was immense.

On the first corner he reached there stood a café, with little green tables on the pavement and a zinc-topped bar and an espresso machine. On some of the tables glasses stood half-empty; in one ashtray a cigarette had burned down to the butt; a plate of risotto stood next to a basket of stale rolls as hard as cardboard.

He took a bottle of lemonade from the cooler behind the bar and then thought for a moment before dropping a pound coin in the till. As soon as he'd shut the till, he opened it again, realizing that the money in there might say what this place was called. The currency was called the corona, but he couldn't tell any more than that.

He put the money back and opened the bottle on the opener fixed to the counter before leaving the café and wandering down the street going away from the boulevard. Little grocery shops and bakeries stood between jewelers and florists and bead-curtained doors opening into private houses, where wrought-iron balconies thick with flowers overhung the narrow pavement, and where the silence, being enclosed, was even more profound.

The streets were leading downward, and before very long they opened out onto a broad avenue where more palm trees reached high into the air, the underside of their leaves glowing in the streetlights.

On the other side of the avenue was the sea.

Will found himself facing a harbor enclosed from the left by a stone breakwater and from the right by a headland on which a large building with stone columns and wide steps and ornate balconies stood floodlit among flowering trees and bushes. In the harbor one or two rowboats lay still at anchor, and beyond the breakwater the starlight glittered on a calm sea.

By now Will's exhaustion had been wiped out. He was wide-awake and possessed by wonder. From time to time, on his way through the narrow streets, he'd put out a hand to touch a wall or a doorway or the flowers in a window box, and found them solid and convincing. Now he wanted to touch the whole landscape in front of him, because it was too wide to take in through his eyes alone. He stood still, breathing deeply, almost afraid.

He discovered that he was still holding the bottle he'd taken from the café. He drank from it, and it tasted like what it was, ice-cold lemonade; and welcome, too, because the night air was hot.

He wandered along to the right, past hotels with awnings over brightly lit entrances and bougainvillea flowering beside them, until he came to the gardens on the little headland. The building in the trees with its ornate façade lit by floodlights might have been an opera house. There were paths leading here and there among the lamp-hung oleander trees, but not a sound of life could be heard: no night birds singing, no insects, nothing but Will's own footsteps.

The only sound he could hear came from the regular, quiet breaking of delicate waves from the beach beyond the palm trees at the edge of the garden. Will made his way there. The tide was halfway in, or halfway out, and a row of pedal boats was drawn up on the soft white sand above the high-water line. Every few seconds a tiny wave folded itself over at the sea's edge before sliding back neatly under the next. Fifty yards or so out on the calm water was a diving platform.

Will sat on the side of one of the pedal boats and kicked off his shoes, his cheap sneakers that were coming apart and cramping his hot feet. He dropped his socks beside them and pushed his toes deep into the sand. A few seconds later he had thrown off the rest of his clothes and was walking into the sea.

The water was deliciously between cool and warm. He splashed out to the diving platform and pulled himself up to sit on its weather-softened planking and look back at the city.

To his right the harbor lay enclosed by its breakwater. Beyond it a mile or so away stood a red-and-white-striped lighthouse. And beyond the lighthouse, distant cliffs rose dimly, and beyond them, those great wide rolling hills he'd seen from the place he'd first come through.

Closer at hand were the light-bearing trees of the casino gardens, and the streets of the city, and the waterfront with its hotels and cafés and warm-lit shops, all silent, all empty.

And all safe. No one could follow him here; the men who'd searched the house would never know; the police would never find him. He had a whole world to hide in.

For the first time since he'd run out of his front door that morning, Will began to feel secure.

He was thirsty again, and hungry too, because he'd last eaten in another world, after all. He slipped into the water and swam back more slowly to the beach, where he put on his underpants and carried the rest of his clothes and the tote bag. He dropped the empty bottle into the first rubbish bin he found and walked barefoot along the pavement toward the harbor.