On their last day Shasa commandeered one of the company jeeps and they drove out into a land of red dunes, the highest in all the world, sculptured by the incessant winds off the cold Benguela Current, their ridges crested like living reptiles as they writhed high against the pale desert sky.

Shasa pointed out to Kitty a hrd of gemsbok, each antelope large as a pony, but with a marvellously patterned face mask of black and white and slender horns, straight and long as they were tall, that were the original unicorn of the fable. They were beautiful beasts, so adapted to their harsh country that they need never drink from surface water, but could survive only on the moisture they obtained from the silvery sun-scorched grasses. They watched them dissolve magically into the heat mirage, turning to squirming black tadpoles on the horizon before they disappeared.

'I was born here. Somewhere in these deserts,' Shasa told her as they stood hand in hand on the crest of one of the dunes and looked down a thousand feet to where they had left the jeep in the gut of the sand mountains.

He told her how Centaine had carried him in her womb through this terrible terrain, lost and abandoned, with only two little Bushmen as her guides and companions, and how the Bushwoman, for whom the H'am Mine was named, acted as midwife at his birth and named him Shasa - 'Good Water' - after the most precious substance in her world.

The beauty and the grandeur affected them both so they drew close together in the solitude, and by the end of that day Shasa was sure that he truly loved her and that he wanted to spend the rest of his life with her.

Together they watched the sun sink towards the red dunes and the sky turned to a screen of hot hammered bronze, dented with flecks of blue cloud as though by blows from a celestial blacksmith's hammer. As the sky cooled, the colours chameleoned into puce and orange and lofty purples until the sun sank behind the dunes - and at the instant it disappeared, a miracle occurred.

They both gasped in wonder as in a silent explosion the entire heavens flared into electric green. It lasted only as long as they held their breath, but in that time the sky was as green as the ocean depths or the ice in the gaping cracks of a high mountain glacier.

Then it faded swiftly into the drab gun-metal of dusk, and Kitty turned to him with a silent question in her eyes.

'We saw it together,' Shasa said softly. 'The Bushmen call it the Green Python. A man can live a lifetime in the desert without seeing it. I have never witnessed it, not until this moment." 'What does it mean.9' Kitty asked.

'The Bushmen say it is the most fortuitous of all good omens." He reached out and took her hand. 'They say that those who see the Green Python will be specially blessed - and we saw it together." In the fading light they went down the slip face of the dune to where Shasa had parked the jeep. They sank almost knee-deep in the fluffy sun-warm sand, and laughing they clung to each other for support.

When they reached the jeep, Shasa took her by the shoulders, turned her to face him and told her, 'I don't want it to end, Kitty.

Come with me. Marry me. I'll give you everything that life has to offer." She threw back her head to laugh in his face. 'Don't be daft, Shasa Courtney. What I want from life isn't yours to give,' she told him. 'This was fun, but it wasn't reality. We can be good friends for as long as you want, but our feet are set on different paths, and we aren't going in the same direction." The next day when they landed at Windhoek airport, a telegram addressed to her was pinned to the board in the crew room. Kitty read it swiftly. When she looked up she wasn't seeing Shasa any longer.

'There is another story breaking,' she said. 'I have to go." 'When will I see you again?" Shasa asked, and she looked at him as though he were a complete stranger.

'I don't know,' she said, and she and her crew were on the commercial flight that left for Johannesburg an hour later.

Shasa was angry and humiliated. He had never offered to divorce Tara for any other woman - had never even contemplated it - and Kitty had laughed at him.

There were well-explored avenues down which he knew he could cure his anger, one was the hunt. For Shasa nothing else existed in the world when the hunter's passion thrilled in his blood, when a bull buffalo, big as a mountain and black as hell, came thundering down upon him, bloody saliva drooling from its raised muzzle, the polished points of its curved horns glinting, and murder in its small piglike eyes. However, this was the rainy season and the hunting grounds in the north would be muggy wet and malarial, and the grass high above a man's head.

He could not hunt so he turned to his other sure panacea, the pursuit of wealth.

Money held endless fascination for Shasa. Without that obsessive attraction he could not have accumulated such a vast store of it, for that required a devotion and dedication that few men are capable of.

Those that lack it console themselves with old platitudes about it not buying happiness and being the root of all evil. As an adept, Shasa knew that money was neither good nor evil, but simply amoral. He knew that money had no conscience, but that it contained the most powerful potential for both good and evil. It was the man who possessed it who made the ultimate choice between them, and that choice was called power.

Even when he had believed himself to be totally absorbed with Kitty Godolphin, his instinct had been in play. Almost subconsciously he had noticed those tiny white specks way out on the green Benguela Current of the Atlantic. Kitty Godolphin had not been gone from his life for an hour before he stormed into the offices of Courtney Mining and Finance in Windhoek's main street and started demanding figures and documents, making telephone calls, summoning lawyers and accountants, calling in favours from men in high places in government, despatching his minions to search the archives of the registrar and the local newspapers, assembling the tools of his trade, facts, figures and influence, and then losing himself happily in them, like an opium-eater with his pipe.

It was another five days before he was ready to bring it all together, and make the final weighing up. He had kept David Abrahams with him, for David was an excellent sounding-board in a situation like this one, and Shasa liked to bounce ideas off him and catch the returns.

'So this is what it looks like,' Shasa began the summing up. There were five of them in the boardroom, sitting under the magnificent Pierneef murals that Centaine had commissioned when the artist was in his prime, Shasa and David, the local manager and secretary of Courtney Mining, and the German lawyer based in Windhoek whom Shasa kept on permanent retainer.

'It looks like we have been asleep on our feet. In the last three years an industry has sprung up under our noses, an industry that last year alone netted twenty million pounds, four times the profits of the H'am Mine, and we have let it happen." He glowered cyclops-eyed at his local manager for an explanation.

'We were aware of the recommencement of the fishing industry at Walvis Bay,' that unfortunate gentleman sought to explain. 'The application for pilchard trawling licences was gazetted, but I didn't think that fishing would match up with our other activities." 'With due respect, Frank, that's the kind of decision I like to make myself. It's your job to pass on all information, of whatever nature, to me." It was said quietly, but the three local men had no illusions as to the severity of the reprimand and they bowed their heads over their notepads. There was silence for ten seconds while Shasa let them suffer.

'Right, Frank,' Shasa ordered him. 'Tell us now what you should have told us four or five years ago." 'Well, Mr Courtney, the pilchard-fishing industry was started in the early 1930s at Walvis Bay and although initially successful, it was overtaken by the depression, and with the primitive trawling methods of those days was unable to survive. The factories closed down and became derelict." As Frank spoke, Shasa's mind went back to his childhood. He remembered his first visit to Walvis Bay and blinked with the realization that it had been twenty years ago. He and Centaine had driven down in her daffodil-coloured Daimler to call in the loan she had made to De La Rey's canning and fishing company and to close down the factory. Those were the desperate years of the depression when the Courtney companies had survived only through his mother's pluck and determination - and ruthlessness.