The motor yacht, Disco Volante, was a hydrofoil craft, built for Largo with SPECTRE funds by the Italian constructors, Leopoldo Rodrigues, of Messina, the only firm in the world to have successfully adapted the Shertel–Sachsenberg system to commercial use. With a hull of aluminium and magnesium alloy, two Daimler-Benz four-stroke diesels supercharged by twin Brown-Boveri turbo superchargers, the Disco Volante could move her 100 tons at around fifty knots, with a cruising range at that speed of around four hundred miles. She had cost £200,000, but she had been the only craft in the world with the speed, cargo- and passenger-space, and with the essential shallow draft for the job required of her in Bahamian waters.
The constructors claim of this type of craft that it has a particular refinement that SPECTRE had appreciated. Having high stability and a shallow draft, Aliscafos, as they are called in Italy, do not determine magnetic field variation, nor do they cause pressure waves – both desirable characteristics, in case the Disco Volante might wish, some time in her career, to escape detection.
Six months before, the Disco had been shipped out to the Florida Keys by the South Atlantic route. She had been a sensation in Florida waters and among the Bahamas, and had vastly helped to make Largo the most popular ‘millionaire’ in a corner of the world that crawls with millionaires who ‘have everything’. And the fast and mysterious voyages he made in the Disco, with all those underwater swimmers and occasionally with a two-seater Lycoming-engined folding-wing amphibian mounted on the roof of the streamlined superstructure had aroused just the right amount of excited comment. Slowly, Largo had let the secret leak out – through his own indiscretions at dinners and cocktail parties, through carefully primed members of the crew in the Bay Street bars. This was a treasure hunt, an important one. There was a pirates’ map, a sunken galleon thickly overgrown with coral. The wreck had been located. Largo was only waiting for the end of the winter tourist season and for the calms of early summer and then his shareholders would be coming out from Europe and work would begin in earnest. And two days before, the shareholders, nineteen of them, had duly come trickling in to Nassau by different routes – from Bermuda, from New York, from Miami. Rather dull looking people to be sure, just the sort of hard-headed, hard-working businessmen who would be amused by a gamble like this, a pleasant sunshine gamble with a couple of weeks’ holiday in Nassau to make up for it if the doubloons were after all not in the wreck. And that evening, with all the visitors on board, the engines of the Disco had begun to murmur, just when they should have, the harbour folk agreed, just when it was getting dark, and the beautiful dark blue and white yacht had slid out of harbour. Once in the open sea, the engines had started up their deep booming that had gradually diminished to the south-east, towards, the listeners agreed, an entirely appropriate hunting ground.
The southerly course was considered appropriate because it is among the Southern Bahamas that the great local treasure troves are expected to be found. It was through the southerly passages through these islands – the Crooked Island, the Mayaguana and the Caicos passages – that the Spanish treasure ships would try to dodge the pirates and the French and British fleets as they made for home. Here, it is believed, lie the remains of the Porto Pedro, sunk in 1668, with a million pounds of bullion on board. The Santa Cruz, lost in 1694, carried twice as much, and the El Capitan and San Pedro, both sunk in 1719, carried a million, and half a million, pounds of treasure respectively.
Every year, treasure hunts for these and other ships are carried out among the Southern Bahamas. No one can guess how much, if anything, has been recovered, but every-one in Nassau knows of the 72-lb. silver bar recovered by two Nassau businessmen off Gorda Cay in 1950, and since presented to the Nassau Development Board, in whose offices it is permanently on view. So all Bahamians know that treasure is there for the finding, and when the harbour folk of Nassau heard the deep boom of the Disco’s engines dying away to the south, they nodded wisely.
But once the Disco was well away and the moon had not yet risen, with all lights dowsed, she swung away in a wide circle towards the west and towards the rendezvous point she was now leaving. Now she was a hundred miles, two hours, away from Nassau. But it would be almost dawn when, after one more vital call, Nassau would again hear the boom of her engines coming in from the false southern trail.
Largo got up and bent over the chart table. They had covered the course many times and in all weathers. It was really no problem. But Phases I and II had gone so well that double care must be taken over Phase III. Yes, all was well. They were dead on course. Fifty miles. They would be there in an hour. He told the captain to keep the yacht as she was, and went below to the radio room. Eleven fifteen was just coming up. It was call time.
The small island, Dog Island, was no bigger than two tennis courts. It was a hunk of dead coral with a smattering of seagrape and battered screw palm that grew on nothing but pockets of brackish rainwater and sand. It was the point where the Dog Shoal broke the surface, a well-known navigational hazard that even the fishing boats kept well away from. In daylight, Andros Island showed to eastwards, but at night it was as safe as houses.
The Disco came up fast and then slowly lowered herself back into the water and slid up within a cable’s length of the rock. Her arrival brought small waves that lapped and sucked at the rock and then were still. The anchor slipped silently down forty feet and held. Down in the hold, Largo and the disposal team of four waited for the underwater hatch to be opened.
The five men wore aqualungs. Largo held nothing but a powerful underwater electric torch. The four others were divided into two pairs. They wore webbing slung between them and they sat on the edge of the iron grating with their frogman’s feet dangling, waiting for the water to swirl in and give them buoyancy. On the webbing, between each pair, rested a six-foot-long tapering object in an obscene grey rubber envelope.
The water seeped, rushed, and then burst into the hold, submerging the five men. They slipped off their seats and trudged out through the hatchway, Largo in the lead and the two pairs behind him at precisely tested intervals.
Largo did not at first switch on his torch. It was not necessary and it would bring stupid, dazed fish that were a distraction. It might even bring shark or barracuda and, though they would be no more than a nuisance, one of the team, despite Largo’s assurances, might lose his nerve.
They swam on in the soft moonlit mist of the sea. At first there was nothing but a milky void below them, but then the coral shelf of the island showed up, climbing steeply towards the surface. Sea fans, like small shrouds in the moonlight, waved softly, beckoning, and the clumps and trees of coral were grey and enigmatic. It was because of these things, the harmless underwater mysteries that make the skin crawl on the inexperienced, that Largo had decided to lead the disposal teams himself. Out in the open, where the plane had foundered, the eye of the big searchlight made, with the known object of the plane itself, the underwater world into the semblance of a big room. But this was different. This grey-white world needed the contempt of a swimmer who had experienced these phantom dangers a thousand times before. That was the main reason why Largo led the teams. He also wanted to know exactly how the two grey sausages were stored away. It could happen, if things went wrong, that he would have to salvage them himself.