'He won't!' Exhausted, Paula turned to Andersson for support, but the Swede had moved away from us, staring at the parked cars. 'It isn't up to Crawford any more – Betty Shand and the rest of them have made their decision. He'll move on to other pueblos and other towns, bring them to life and then demand a sacrifice, and always there'll be people willing to carry it out. Listen to me, Charles – blood pays for your arts festivals and civic pride…'

I sat in the driver's seat of Frank's car, holding the steering wheel as Andersson raised a hand in a brief farewell salute and walked up the ramp into the late afternoon sunlight. Paula stood beside the Jaguar, watching me through the windshield as she waited for me to respond to her. But I was thinking of Frank and our childhood years together. I understood how he had fallen under Crawford's spell, accepting the irresistible logic that had revived the Club Nautico and the moribund town around it. Crime would always be rife, but Crawford had put vice and prostitution and drug-dealing to positive social ends. Estrella de Mar had rediscovered itself, but the escalator of provocation had carried him upwards to the Hollinger house and the engulfing flames.

Paula paced around the car, her confidence in me ebbing as the blood drained from her flushed cheeks. At last she gave up, dismissively throwing an arm across the gloomy air, aware that I would never rally myself to challenge Crawford. I stretched across the rear seat and took the Calabria travel guide from the window shelf, then turned to the dedication I had written to Frank on the flyleaf. Reading the warm words that I had penned three years earlier, I heard the engine of Paula's car turn beside me, its sound lost in the memories of boyhood days.

The steady beat of the tennis machine rose from the court as I parked in the villa's drive, that monotonous thumping that had presided over Estrella de Mar and the Residencia Costasol since my arrival in Spain. I listened to the hiss and wheeze of the loading mechanism, followed by a faint creak as it adjusted its angle and trajectory. While driving from the Club Nautico I had thought of Crawford tirelessly returning the balls, preparing himself for his departure that evening and the tasks that lay ahead of him in Calahonda. With nothing but his battered Porsche and a collection of tennis rackets he would set off to arouse another stretch of the sun-coast.

I switched off the Citroen's engine and gazed at the lines of gilt chairs and trestle tables on the terrace, trying to decide what I could safely say to Crawford. The preparations for the party would begin within an hour, when the canapes and drinks were delivered, and there would be little time for our first and last tennis match. I was sure that Crawford would let me win, part of that generosity of spirit that so charmed, everyone who met him.

Before leaving the Club Nautico I had telephoned Inspector Cabrera, asking him to meet me at my villa. There I would tell him everything I had learned of the Hollinger deaths and of the arson attempt on Sanger's bungalow. Aware of my changed tone of voice, Cabrera had begun to question me, then accepted the seriousness of my call and promised to meet me as soon as he could drive from Fuengirola.

Replacing the receiver, I had looked around Frank's apartment for the last time. The silent rooms seemed airless, and all too aware that Frank would never return. They had decided to withdraw into the secret past of his evenings with Paula and his long conversations with an eager young tennis professional who had drifted down the coast and discovered, in the somnolent beach resort, an elixir that would wake the world.

I listened to the tennis machine, feeding itself from the hopper of balls. The boom of the firing mechanism was followed by each ball's impact as it crossed the net and struck the clay, but there was no sound of Crawford's return service, no rasp of his sliding feet and familiar grunting breath.

I stepped from the car and walked past the cooling Porsche. The swimming pool was smooth and undisturbed, the vacuum hose roving the surface, sucking away the leaves and insects. I followed the pathway around the house, past the garage and kitchen entrance. Through the wire screen that surrounded the tennis court I could see Crawford's towel and sports bag on the green metal table beside the net. The surface of the court was strewn with balls, each newcomer cannoning among them like the white on a crowded snooker table.

'Bobby…?' I called out. 'There's just time for a quick set…'

The machine varied its trajectory, tilting upwards and to the right. The ball shot across the net, struck something on the baseline and ricocheted almost vertically into the air, soaring over the wire screen. I ran the few paces towards it, hand above my head, and caught the ball as it fell.

Blood spattered my arms and face. Holding the sticky ball in my fingers, I stared at the tarry carmine. I wiped the clotting blood from my cheeks, my hands smearing the sleeves of my shirt.

'Crawford…?'

I opened the wire door and stepped into the court as the tennis machine fired its last ball and fell silent. A final unreturned service, it struck the scuffed clay beside the body of a man in white shirt and shorts who lay across the baseline. Racket in hand, he rested face up in a lake of blood that leaked across the yellow clay.

Mouth gaping, as if he had died in a moment of unfeigned surprise, Bobby Crawford lay among the bloodied balls. His left hand was open, its fingen splayed fiercely at the sun, and I guessed that he had tried to catch the two bullets fired into his chest. The punctures stood out clearly in his cotton shirt, one beside his left nipple, the other below his collarbone.

A few feet from him was a small automatic pistol, its chromium barrel reflecting the cloudless sky. I dropped the stained ball in my hand, knelt down and picked up the pistol, then gazed at the murdered man. Crawford's lips were parted as they prepared to shape themselves into the first grimace of death. I could see his ice-white teeth, and the porcelain caps that he always claimed had been his most valuable investment before setting out on his career as a tennis professional. As his head struck the ground the cap of his left incisor had broken loose, and the steel peg shone in the sun, a small dagger like a concealed fang in the smile of this dangerous but likeable man.

Who had shot him? I held the pistol in my blood-soaked hand, carefully erasing the killer's fingerprints. The low-calibre weapon was a lady's handbag pistol, and I imagined Paula Hamilton carrying it inside her purse, her white hand clasping the cleated butt, letting herself into the court and walking through the service balls as Crawford waved to her. Assuming that I would never betray him, she had decided to kill Crawford before the farewell party could embark on its lethal evening's programme.

Or had Sanger shot him, revenging himself for everything that Crawford had done to Laurie Fox? In my mind I could see the slim but determined psychiatrist striding through the stinging balls that Crawford served at him, impassive as a vicious ace struck his shoulder, the pistol held tightly in his hand, smiling for the first time when Crawford lowered his racket to plead with him…

Cars were pulling into the drive, led by Cabrera's Seat. The Inspector leaned from the window, as if already smelling the scent of blood on the air. Behind him Elizabeth Shand and Hennessy sat in the rear seat of the Mercedes, waiting while an uncertain Mahoud pulled the limousine on to the grass verge. None of them was dressed for the party, and had called at the villa to supervise the storage of the drinks and canapes. Two delivery vans were parked in the road, and men in white overalls unloaded trays of glasses and bales of tablecloths. Sanger stepped past them, head raised as he tried to see beyond Cabrera's car, one hand holding his silver hair. Whoever had shot Crawford-Paula Hamilton, Sanger or Andersson-had known that the tennis machine would disguise the pistol's sounds, and had slipped away less than a minute before my arrival.