I watched from the doorway of a tapas bar as he expertly jumped the car's ignition circuits. When the engine began to turn he pulled the Saab out of the parking lane and accelerated down the cobbled street, clipping the wing mirrors of the stationary cars.

By the time I returned to the Citroen I had lost him. I drove around the plaza, and then searched the harbour and the old town, waiting for him to reappear. I was about to give up and set off for the Club Nautico when I saw a group of tourists outside the Lyceum theatre club in the Calle Dominguez trying to calm an impatient driver. Crawford's stolen Saab was boxed into the kerb by an unattended pick-up van loaded with Egyptian costumes for a forthcoming production of Aida.

Before anyone could find the driver, Crawford shouted his thanks and drove forward, ramming the Saab into the space between the van and the car parked ahead of him. There was a rasp of torn metal as a wing buckled, and a headlamp shattered and fell between the wheels. The costumes danced on their hangers, a line of drunken pharaohs. Smiling to the startled tourists, Crawford reversed and then threw the Saab forward again, his arms raised as the van's crushed wing stripped the paint from his door.

No longer bothering to conceal myself, I followed Crawford when he broke free and resumed his circuit of Estrella de Mar. Part inspection tour and part criminal jaunt, his route took him through a hidden Estrella de Mar, a shadow world of backstreet bars, hard-core video-stores and fringe pharmacies. Not once did money change hands, and I assumed that this whirlwind cruise was primarily inspirational, an extension of his cheerleader's role at the Club Nautico.

Towards the end he parked again in the Plaza Iglesias, left the Saab and plunged into the crowds that overflowed the pavements outside the galleries and bookstores. Ever-smiling, his face as open as a friendly adolescent's, he seemed popular with everyone he met. Storekeepers offered him a pastis, shop assistants were happy to flirt with him, people rose from their cafe tables to banter and jest. As always I was struck by how generous he was, giving of himself as if drawing on a limitless source of warmth and goodwill.

Yet just as freely he. stole and shoplifted. I watched him pocket an atomizer from a perfumery on the Calle Molina, then skip along the sidewalk, spraying scent at the feral cats.

He supervised a streetwalker's make-up in the Galleria Don Carlos, examining her eyeliner with the seriousness of a beauty specialist, then slipped past her into the nearby bodega and helped himself to two bottles of Fundador that he placed between the feet of the winos dozing in a nearby alley. With the deftness of a conjuror he spirited a pair of crocodile shoes from a display stand under the nose of the store's manager, and minutes later emerged from a busy jewellery shop with a small diamond on his little finger.

I assumed that he was unaware of my presence twenty yards behind him, but as we crossed the gardens of the Plaza Iglesias he waved to Sonny Gardner, who stood on the steps of the Anglican church, mobile phone to his plump lips. The sometime barman and sail-rigger nodded to me when I walked past him, and I realized that others had probably joined Crawford on his evening crime spree.

Returning to the battered Saab, Crawford waited for me to take the wheel of the Citroen and start the overheated engine. Tired of the town and its tourist crowds, he left the plaza and drove past the last of the shops towards the residential streets on the wooded slopes below the Hollinger mansion. He led me in and out of the palm-lined roads, always keeping me in sight, and I wondered if he intended to break into one of the villas.

Then, as we circled the same traffic island for the third time, he suddenly accelerated away from me, lapped the Citroen and sat on my tail before swerving off into the maze of avenues. His horn sounded a series of cheery toots that faded across the hillside, the friendliest of goodbyes.

Twenty minutes later I found the Saab outside the drive of a large, half-timbered villa two hundred yards from the gates of the Hollinger estate. Beyond the high walls and security cameras an elderly woman watched me from an upstairs window. Crawford, I decided, had caught a lift from a passing driver, and the inspirational tour of Estrella de Mar had ended for the day.

I walked over to the Saab and gazed at its battered bodywork and by-passed ignition system. Crawford's fingerprints would be all over the vehicle, but I was sure that the owner would not report the theft to the Guardia Civil. As for the volunteer police force, its main function seemed to be the preservation of the existing criminal order, rather than the tracking down of miscreants. Twice during Crawford's jaunt around Estrella de Mar the police patrol's Range Rovers had provided him with an escort and kept an eye on the stolen Saab while he shoplifted in the Plaza Iglesias.

Exhausted by the effort of chasing Crawford, I sat down on the wooden bench beside a nearby bus stop and gazed at the battered car. A few feet from me a flight of stone steps climbed the hillside towards the rocky summit above the Hollinger house. Whether or not by coincidence, Crawford had left the Saab at almost the exact spot where Frank's Jaguar had been found with its incriminating flask of ether and gasoline. It occurred to me that the arsonist had reached the lemon orchard by climbing the steps. On his return, seeing the Jaguar by the bus stop, he had seized the opportunity to implicate its owner by leaving the unused flask on its rear seat.

Consigning the Citroen to the care of the elderly woman's security cameras, I began to mount the worn limestone steps. Centuries older than Estrella de Mar, according to a local guidebook I had read, they led to an observation post constructed during the Napoleonic wars. The perimeter walls of the adjacent villas reduced their width to little more than my shoulders. Beyond the encroaching shrubbery a hang-glider turned in the cloudless sky, the pilot's vizored helmet silhouetted against the rustling canopy.

The last of the villas fell below me as I climbed the final steps to the observation platform. Sitting on the castellated wall, I caught my breath in the cool air. Stretched out beneath me were the peninsular heights of Estrella de Mar. Ten miles to the east the hotel towers of Fuengirola faced the sinking sun, their curtain walls like huge screens waiting for the evening's son et lumiere performance. From the stone platform the ground sloped down to the blackened grove of lemon trees and then to the rear gate and the garage apartment beside the fire-swept house.

I left the platform and walked towards the orchard, searching the stony soil for any trace of the arsonist's footprints. Above my head sounded the leathery flutter of canvas. Curious to see who I was, the glider pilot hovered in the air above me, so close that his booted foot almost touched my head, his vizor masking his eyes. Too distracted to wave to him, I stepped through the charred stumps of the lemon trees, my shoes crushing the flakes of charcoal that covered the ground.

Thirty yards away the Hollingers' chauffeur stood by the gate, his back to the old Bentley in the drive. He watched me in the same fixed and half-threatening way, hands clasped across his chest. He stepped forward as I approached, his boots a few inches from a shallow pit excavated in the soil.

A tag of yellow police tape flew from a wooden stump, and I assumed that it marked the hollow where the arsonist had hidden his incendiary flagons on the night before the fire. As if out of respect, the hang-glider withdrew from the hill-crest, its canvas cracking in the air. Miguel stood at the pit's edge, the calcinated soil crumbling under his feet. Despite his aggressive stance, he was waiting for me to speak to him. Had he, conceivably, caught even the briefest glimpse of the arsonist…?