Delivery vans were parked in front of my gates, and workmen unloaded the chairs and trestle tables for the party that evening. The drinks and canapes would arrive later, ordered by Elizabeth Shand from one of the Keswick sisters' restaurants in the plaza. The party would begin at nine o'clock, giving me ample time to change after an hour's tennis with Crawford, our first and last game together.

As the workmen carried the chairs to the terrace I stood in the centre of the tennis court, my hand on the barrel of the practice machine. The conversation with Sanger had unsettled me. The once venial and effeminate psychiatrist had found a second, more determined self. He was working himself up into a confrontation with Crawford, probably fearing that he would try to abduct Laurie Fox when he set off for Calahonda. With a little help from Sanger, Inspector Cabrera would soon unearth the depots of drugs and pornography, and expose the car thieving and the dubious escort services.

Life in the Costasol complex, everything that Crawford and I had worked for, would come to an end as the frightened British residents, fearful of losing their residence permits, abandoned their clubs and societies and retreated into the twilight world of satellite television. A social experiment of the most ambitious and idealistic kind would fade in the settling dust of another moribund sun-coast resort.

I started the tennis machine, and listened to the first ball as it exploded from the barrel, thinking of a harder projectile that might be fired from a different weapon…

David Hennessy was at his desk on the ground floor of the sports club, scanning the computer screen while Elizabeth Shand stood behind him. The accumulating totals seemed to light up the tailored business suit into which she had changed, dressing the sleek fabric with a sheen of pesetas. I realized that the Costasol festival had ended, and that the profit-taking had begun. The tourists were leaving the plaza, and the cafes around the shopping mall were almost empty, the few patrons gazing out at a sea of litter and fading petals. The tennis courts and swimming pool of the sports club were deserted, and the members had left early to prepare for the evening's private parties. Wolfgang and Helmut stood by the draining pool, watching as the Spanish groundsmen changed the water and the waiters straightened the tables.

'Charles…?' Hennessy stood up to look more closely at me. He had put aside his avuncular clubroom manner and now resembled a shrewd accountant faced with an extravagant and thoughtless client. 'That was generous of you, dear chap – helping Sanger with the girl. Was he right to take her, though…?'

'She is his patient. And she obviously needed help.'

'Even so. The two of you turned a bit of horse-play into a medical emergency. Not exactly good for the members, would you think?'

'Never mind. You put an end to a nasty scene.' Elizabeth Shand picked up a scab of dried blood on my shirt, grimacing with distaste as if reminded of the messy and unreliable fluid coursing through even her cool veins. 'Bobby did so much to help her, but these kindnesses are never appreciated. You took her back to Sanger's bungalow?'

'He's looking after her. She's asleep now.'

'Good. Let's hope she remains asleep and gives us all a chance to calm our nerves. I must say Sanger's dedication to that damaged child is touching. Of course, I knew her father, another of those doctors with wandering hands. I only pray that Sanger can restrain himself.'

'I don't think he will.'

'Really? I feared as much. There's something deeply unsavoury about the thought. I always suspected that psychiatry was the ultimate form of seduction.'

I joined her at the window, and looked down at the grass verge scarred and trampled by the tourists. 'I talked to him before I left-I think he may go to the police.'

'What?' Elizabeth Shand's make-up seemed about to crack. 'Report himself for professional misconduct? David, what would the General Medical Council make of that?'

'I can't imagine, Betty.' Hennessy raised his hands to the heavens. 'I don't suppose the contingency has ever arisen. Are you sure about this, Charles? If the news got out it would cause a good few problems here. The London tabloids would have a field day.'

'This has nothing to do with Laurie Fox,' I explained. 'It's Bobby Crawford he's concerned about. Sanger loathes everything we've done here. I'm fairly certain he's going to lay the whole operation out in front of Cabrera.'

'How silly of him.' Elizabeth Shand gazed calmly at Hennessy, unsurprised by what I had told her. She rested her hand on my shirt and began to pick again at the dried blood. 'That's rather worrying, Charles. Thank you for letting us know.'

'Betty, it's more than a possibility. The scene in the pool pushed him over the edge.'

'It probably did. He's a curious man, with all those difficult moods. Why the girls like him I can't imagine.'

'We do need to head him off.' Trying to sound a more urgent note, I said: 'If Sanger sees Cabrera there'll be an army of detectives here, pulling up every floorboard.'

'We don't want that.' Hennessy switched off the computer and stared at the ceiling with the distracted expression of someone faced with a difficult crossword clue. 'It's a bit of a poser. Still, the party tonight should clear things up.'

'Exactly.' Elizabeth Shand nodded vigorously. 'A good party solves all sorts of problems.'

'Shall I invite him?' I asked her. 'You could have a friendly word with him, reassure him that everything will settle down once Bobby leaves for Calahonda.'

'No… I think not.' She picked away the last of Laurie Fox's blood. 'In fact, make sure you don't invite him.'

'He'd enjoy the party.'

'He will, anyway. You'll see, Charles…'

Scarcely reassured, I left the sports club and set off across the plaza, hoping to find Crawford and persuade him to take a more combative line with Elizabeth Shand. The festival had ended, and the last tourists had left the bars and cafes and returned to their cars beside the beach. I walked across the fading petals and confetti as a few helium balloons floated in a desultory way above the litter, hunting their own shadows.

The floats that had so entertained the crowds were drawn up in the supermarket compound, where half a dozen small children romped around them. Leading them in their game of hide and seek was Bobby Crawford, still tirelessly pouring out his energy and enthusiasm. As he leapt around the abandoned tableaux, arms wreathed in the tattered bunting, pretending to search for a squealing little girl who had hidden herself under the piano, he seemed like a forlorn Peter Pan trying to stir the remnants of his never-land into a second life. His Hawaiian shirt was stained with dust and sweat, but his eyes shone as eagerly as ever, driven by that dream of a happier world that had sustained him from childhood. In a sense he had turned the Costasol residents into children, filling their lives with adult toys and inviting them out to play.

'Charles…?' Delighted to see me, he held the little girl in his arms and jumped from the float, the children hunting around him. 'I've been looking for you-how is Laurie?'

'She's all right, sleeping quietly. Sanger gave her a sedative. She's better off there.'

'Of course she is.' Crawford seemed surprised that I might have thought otherwise. 'For weeks I've been telling her to go back to him. She'd burned herself out, Charles, she needed to feel angry and depressed again – Sanger's the man for that. I couldn't help her, though God knows I tried.'

'Listen, Bobby…' I waited for him to calm himself, but he was still watching the children, ready to join them in another game. 'I'm concerned about Sanger. I'm fairly certain that he's going to -'

'Cabrera?' Crawford waved to the children as they ran off to join their parents by the supermarket entrance. 'I'm afraid he will, Charles. I've known it for a long time. He's an unhappy psychiatrist, and the police are the only way he can get back at me.'