Matthew leaned forward. As he did so, there was an uncomfortable sucking noise as his clothes detached themselves from the seat. “May I ask where you’re taking me?”

“You can ask, mate,” said one of the policemen. “No harm in asking.”

“Well, where are we going? I’ve done nothing illegal. You can’t just…”

“Oh we can,” said the other policemen. “We can pick up people who are a danger to themselves or others. Not that it’s your fault, mate. We know that.” He paused, and looked at Matthew through the grille. “Were you in hospital before… before you met the dolphin?”

Matthew stared at the policeman in astonishment. He now realised what they were assuming: they thought that he was mad. They did not believe his story about the dolphin – and who could blame them?

He knew what he would have to do. “I’m sorry,” he said. “I really am. I think that there’s been a misunderstanding. There was no dolphin.”

The policeman nodded. “No dolphin now? Well, you did tell us. And of course we believed you. Why would we not believe that you met a dolphin? So what was it? A whale, maybe?”

Matthew laughed. “Certainly not! Listen, I know that you think that I’m round the bend. I know you think that I am one of these people who imagine all sorts of things. Well, I’m not. There really wasn’t a dolphin and I was just making it up. Just to… Just to amuse myself. So, if you wouldn’t mind, just let me get out and get back to my hotel.”

The policemen stared fixedly ahead.

“Did you hear me?” asked Matthew after a while.

“Oh we heard you all right, mate,” said one of the policemen. “But you just sit back and keep calm. We don’t want to have to use handcuffs, do we? Everything is going to be all right. They’ll fix you up nicely at the hospital.”

Matthew looked through the window of the police car. This could not be happening; it simply could not be happening. He could not be in a police car, here in Perth, being treated by two policemen as a raving lunatic. It simply could not be happening.

And it was while he was thinking of the complete impossibility of his situation that the radio in the police car crackled into life. There was an incident on Cottesloe Beach, the voice reported. Further help was required to co-ordinate the search for a missing swimmer and could cars report back in if in the area. The policeman in front of Matthew turned round and looked at him. When he spoke, his tone had changed.

“What’s your name, mate?”

Matthew told him, and the policeman reached forward for the radio handset and muttered a question into it. There was a short pause before a voice came back over the speaker. Matthew recognised his name.

“That’s me,” he said. “That’s me. I was the one washed out to sea.”

The policeman frowned. “You should have told us that, mate! Jeez. You should have told us that. We thought that you were mad as a cut snake. That dolphin business…”

“Please just get me back there,” interrupted Matthew. “My wife will be worried sick.”

The car slowed down and then made a swift U-turn. The policeman at the wheel now concentrated on his driving while the other one spoke briefly and urgently into the radio. In the back seat, Matthew was no longer concerned about the feeling of stickiness; his clothes had now started to dry and were clinging less to his skin. And he felt, too, the relief that comes with waking up from a nightmare.

Within ten minutes they were back at the restaurant. A small knot of people was standing at the top of the path that led down to the beach, several of them holding torches; there was a man in a swimming costume with a curious belt-like apparatus around his waist – a lifeguard prepared for rough seas; and there was Elspeth, standing a little bit apart.

Matthew tried to open the door of the car before it came to a complete halt, but the door would not budge.

“Kiddie-locked, mate,” said the policeman in front. “Just calm down. You’ve had enough accidents for one night.”

“I have to see my wife,” said Matthew. “I have to see her.”

“Strewth,” said the policeman. “I know a lot of blokes who’d willingly be washed out to sea just to get away from their old ladies.”

Matthew said nothing. This was not a time for such comments. He was going off Australia quite quickly; how odd, he thought, that one can rather like a country and then not like it quite so much, all within the space of a couple of hours. Mind you, how would an Australian visitor feel if he were to be washed into the sea off Gullane beach? Cold, thought Matthew. And would one be carted off to a psychiatric hospital quite so quickly, just for claiming to have been rescued by a dolphin? Probably not, Matthew thought. There would be waiting lists for that.

Matthew’s return had a strange effect on Elspeth. When he ran up to her, she barely registered his presence. “Is there any news?” she asked, barely looking at him. “Is he…” And then she realised that it was Matthew standing in front of her, bedraggled, still damp, but undeniably her husband. She screamed, and flung her arms about him. He held her, supporting her weight, calming her as best he could.

Witnessing the reunion, the small crowd of onlookers – the restaurant staff, a couple of lifeguards, the police, looked away or turned to talk to one another, though some sneaked a glance. They knew, though, that they were seeing somebody find another believed to be dead, a human reunion surely more moving than any other.

Elspeth could not talk at first, but soon recovered. “What happened?”

“I was washed out to sea,” Matthew said. “It was a rip tide. I didn’t stand a chance. I tried to swim back, but I couldn’t even see you.”

“It was so quick,” Elspeth whispered. “One moment you were there and then…” She shuddered; he had disappeared so quickly. “There was one wave in particular. It came right up the beach.”

“They call them rogue waves,” said Matthew. “And yes, that was the one.”

One of the policemen stepped forward. “Well, it looks as if you’re all right,” he said. “Sorry about that misunderstanding, mate. But all’s well that ends well, as they say.”

Matthew turned round and shook hands with the policeman; he had only been dong his duty. “Thanks very much for…” For what? he wondered. For arresting him? “For bringing me back here.”

“No worries, mate. But take care in future. The sea here is not like your sea over in England.”

“Scotland, actually,” said Matthew. And our sea, he thought, was every bit as dangerous, if not more. But this was not the time to argue about that.

“Yes, whatever. But just remember, Australia’s a big place. You’ve got to be careful.”

Matthew smiled. “I will.”

One of the lifeguards now produced a form that he handed over to Matthew. “Do you mind signing this just here?” he said, pointing to a dotted line. “It’s just the paperwork.”

Matthew glanced at the form. “What’s it about?”

“Oh, it just says that it was your fault,” the lifeguard said cheerily. “And that you went into the water at a time when the no-bathing flag was up. Otherwise people blame us, you see.”

“But it wasn’t my fault,” said Matthew. “I didn’t go swimming.”

The lifeguard exchanged glances with his colleague. “But you must have, mate,” he said. “Otherwise how could you have been swept out?”

Matthew shook his head. “No, that’s not the way it happened.”

Elspeth agreed with him. “No. He’s right. I was there. He didn’t go swimming.”

Matthew returned the piece of paper to the lifeguard. “Thank you anyway,” he said. “I’m very grateful to you for your attempts to rescue me. But I can’t sign something that says it’s my fault. It wasn’t. It wasn’t anybody’s fault.”

The lifeguard took the form reluctantly. “So you’re not going to sign?”