'Off, off off! Charles, order him to strip!'

The women beside me bounded like cheerleaders on their tennis pumps, rackets whirling above my head, and Crawford good-naturedly unbuttoned his shirt and exposed his hairless chest, striking a Byronic pose for the sculptor. A news agency photographer ran beside the float, and Crawford peeled off his shirt and hurled it to the crowd. When they reached the shopping mall he leapt from the float and ran bare-chested past the cafe tables, pursued by a squealing posse of teenage girls in carnival hats.

Exhausted by the noise and relentless good humour, I left the tennis ladies and took refuge in my office. Yet another tableau had reached the plaza, an amateurish effort by the Olde-Tyme Dancing Club, but the elderly couples trying to waltz on the swaying platform received as big a cheer as Lady Godiva.

The Residencia Costasol was happy with itself, and for good reason. During the past two months-the legal documents from Senor Danvila on my desk reminded me that Frank's trial began the next day – the explosion of civic activity had astonished even Bobby Crawford. At dinner with Elizabeth Shand the previous evening he had laughed and shaken his head over what I termed 'a fast-forward renaissance', all too embarrassed by the genie that had sprung from the bottle.

The somnolent township with its empty shopping mall and deserted sports club had transformed itself into another Estrella de Mar, as if an infectious but benevolent virus had floated along the coast, invading the sluggish nervous system of the Residencia and galvanizing it into life. An intact and self-sufficient community had sprung into being. Half a dozen new restaurants thrived around the plaza, all but one financed by Betty Shand and managed by the Keswick sisters. Two nightclubs had opened near the marina, the Milroy for the older set and Bliss's for the younger. The town council met weekly at the Anglican church, whose Sunday congregations packed its pews. Meanwhile, the volunteer security patrols kept the sun-coast riff-raff from any access to the complex. A host of societies pursued every pastime from origami to hydrotherapy, the tango to t'ai chi. And all this, whatever my doubts, seemed to have been conjured into existence by the dedication of one man.

'Bobby, you're a new kind of Messiah,' I often told him. 'The Imam of the marina, the Zoroaster of the beach umbrella 'No, Charles – I'm a facilitator.'

'I'm still not sure that it isn't a huge coincidence, but I take off my hat to you.'

'Put it back on. They did it, not me. I was just the donkey-engine…'

With his unfeigned modesty, Crawford was quick to pass any credit to the people of the Residencia. As I had learned for myself, an immense reservoir of unused talent had lain dormant beneath the shaded awnings. The middle-class professionals who had dozed by their swimming pools were sometime lawyers and musicians, advertising and television executives, management consultants and local government officers. The skills base of the Residencia Costasol might not equal that of the Medicis' Florence, but it was far wider than most comparable towns in Europe or North America.

Even I had been touched by this infection of optimism and creativity. Resting by the pool in the evenings, I had sketched the outline of a book – 'Marco Polo: the World's First Tourist?' – that would be a history of tourism and its eclipse of the age of travel. After despairing of me for so many months, my London agent was now bombarding me with faxes, urging me to provide him with a detailed synopsis. I frequently played bridge with Betty Shand and the Hennessys, reluctant though I was to leave the Residencia for Estrella de Mar and its baleful memories of the Hollinger fire, and had even been tempted to play a small part in a forthcoming production of Orton's What the Butler Saw.

From my office I looked down at the crowded swimming pool, at the busy restaurant and tennis courts, glad that I had played my role in bringing the Residencia back to life. Below me, Betty Shand was holding court at the open-air bar, keeping a motherly, if steely eye on a handsome young Russian, Yuri Mirikov; she had just recruited him as a special 'aerobics' coach. As she gazed at the scene around her, like a silken cobra sated after digesting a succulent goat, I could almost see the accumulating cash totals flicker past her eyes.

The Residencia was booming in every sense, an economy of cash, talent and civic pride that showed no signs of overheating. Newly refurbished yachts and power-cruisers crowded the marina, and Gunnar Andersson had recruited a full-time staff of mechanics to maintain the engines and navigation gear. The waterlogged hulk of the Halcyon still lay against its lighter, like the carcass of a forgotten whale lashed to the tender of a factory ship, but was scarcely visible through the forest of gleaming masts.

Members crowded the balcony outside my office, cheering on another carnival float, a presentation by the rapid response group of the Residencia's security service. Together they enacted the arrest of two car thieves who had strayed down the coast from Fuengirola, expertly pinioning and handcuffing the startled youths. Yet among all this good humour one long face remained, its severe expression unmoved by the festive air. As the thieves' fates were decided in a loudspeaker-borne crackle of walkie-talkies and mobile phones, I noticed Paula Hamilton step on to the balcony. She wore a dark suit and white blouse, and carried her doctor's valise. Glad to see her, I waved through my office windows, though with her disapproving and hangdog look she more and more resembled a mendicant physician wandering through the kingdom of health in search of a single sick patient.

At my urging she had joined the sports club, and would often swim in the early morning, slipping into the water as the last of the night's revellers drove from the car park. She practised with Helmut at the tennis courts, trying to control her unwieldy, big-elbowed game. Once I knocked up with her, but she played in such a lacklustre way that I assumed she had joined the club for reasons of her own, perhaps keeping an eye open for any rival doctors on her turf.

She watched from the balcony as the security tableau passed the cafe crowds, and smiled briefly when Bobby Crawford, in a borrowed Hawaiian shirt, sprang on to the float and mimed a drunken British lager lout. Within seconds he turned the security exercise into a Keystone Kops routine, with the guards tripping over their own feet and scrabbling for the scattered mobile phones as the earpieces squawked their manic orders.

She turned away, clearly troubled by something, and noticed me watching her from my office. With a shy smile she opened the door and leaned against the glass panel.

'Paula… you look tired.' I offered her my chair. 'All this noise – you probably need a drink.'

'Thanks, I do. Why is other people's happiness so exhausting?'

'They've a lot to celebrate. Sit down, I'll ring for whatever you want. You do the prescribing.'

'Nothing. Just some mineral water.' She smiled brightly, showing her strong teeth, and tossed her black hair over her shoulders. She watched Crawford playing the fool, juggling with three mobile phones in a shower of petals and confetti. 'Bobby Crawford… he's popular, isn't he? Your saintly psychopath. Everyone adores him.'

'Don't you, Paula?'

'No.' She bit her lip, as if trying to erase the memory of a kiss. 'I don't think I do.'

'He meant a lot to you once.'

'Not now. I've seen his other sides.'

'They're well under control. I don't know why you're so obsessed by him.' I gestured to the crowds in the plaza, the hooting sirens and clouds of petals. 'Look at what he's done. Do you remember the Residencia three months ago?'

'Of course. I came here a lot.'