A powerless but impassively manned motor-launch and two canoes had just appeared in line ahead round a bend in the Rio da Morte.
CHAPTER SEVEN
The hovercraft’s cabin was luxuriously furnished although on a necessarily small scale. The bar was splendidly if selectively equipped and, at the moment, well patronised. Most of the passengers from the wrecked helicopter gave the impression of having escaped from the jaws of death. The atmosphere was relaxed, almost convivial, and the spirit of the departed Heffner did not appear to hover over the company.
Hamilton said to Kellner. ‘Any trouble during the night?’
‘Not really. A couple of canoe-loads of Indians approached us just after midnight. We turned the searchlight on them and they turned and headed back for shore.’
‘No shooting?’
‘None.’
‘Good. Now, the big question tomorrow is the rapids that the Indians call the Hoehna.’
‘Rapids?’ Kellner said. ‘There are no rapids shown on the chart.’
‘I daresay. Nevertheless, they’re there. Never been through them myself although I’ve seen them from the air. Don’t look anything special from up there, but then nothing ever does. Much experience with rapids?’
‘A fair bit,’ Kellner said. ‘Nothing that a boat hasn’t navigated though.’
‘I’m told boats have made it through the Hoehna.’
‘So where’s the problem? A hovercraft can navigate rapids that no boat made by man could ever hope to.’
Serrano said: ‘Knowing you, Senor Hamilton, I thought you would have had us on our way by this time. A clear night. Bright moon. A beautiful night for sailing. Or is it flying in one of those machines?’
‘We need a good night’s rest, all of us. It’s going to be a hard day tomorrow. The Hoehna rapids are less than a hundred miles away. How long to get there, Kellner?’
Three hours. Less, if you want.’
‘One does not navigate rapids by night. And only a madman goes there in the hours of darkness. Because of the Horena, you see.’
Tracy said: ‘The Horena? Another Indian tribe?’
‘Yes.’
‘Like the Chapate?’
‘They’re not at all like the Chapate. The Horena are the Roman lions, the Chapate the Christians. The Horena put the fear of living death into the Chapate.’
‘But you said the Muscias—’
‘Ah! The Muscias are to the Horena what the Horena are to the Chapate. Or so they say. Goodnight!’
‘Rapids!’ Ramon called out. ‘Rapids ahead!’
In the two and a half hours since the hovercraft’s dawn departure the Rio da Morte, though flowing at a rate of about fifteen knots, had been almost glassily calm and, although visibility had been poor because of fairly heavy rain, no problems had been encountered. But now conditions had dramatically altered. At first indistinctly through the now sheeting rain, but then suddenly, frighten-ingly, and all too vividly rocks could be seen, some jagged, some curved, thrusting up from the river bed. For as far as the eye could see hundreds of them spanned the entire width of the river with white-veined, seething water coursing down between them. The hovercraft, throttled back to a point where directional control could just be maintained, was almost at once into this white and seething cauldron.
When Kellner had said that he had some little experience of navigating rapids he had been doing himself less than justice. As far as the untrained observer could see, he was masterly. He was positively dancing a jig at the controls. He no longer had the throttle pulled back but kept altering it between half and full ahead which, considering their speed, might have seemed foolhardy, but wasn’t. By doing this and by ignoring the air ducts and maintaining the cushion pressure as high as possible he could all the more easily avoid making violent course alterations which would have slewed the hovercraft broadside and into disaster. Instead, he was deliberately aiming for and riding his hovercraft over the less fearsome rocks in his pat…; Even here he had to be selective, searching out the more rounded rocks and avoiding the jagged ones which, at that speed, would have ripped even the abnormally tough apron skirts, leading to the collapse of the cushion and turning the hovercraft into a boat which would then have foundered in short order. One moment he was jerking the pitch control back, putting power on the left fan, then if this proved insufficient, applying right rudder to give him directional stability while only seconds later he had to reverse the procedure. His task was made harder by the fact that even the high-speed windscreen wipers were capable only intermittently of clearing the spray and rain.
Kellner said to Hamilton who was seated beside him: ‘Tell me again about all those boats that were supposed to navigate the Hoehna.’
‘I guess I must have been misinformed.’ Further back in the hovercraft no-one spoke because all their energies were concentrated on hanging on to their seats. The general effect of the motion was that of a roller-coaster—except that this roller-boaster, unlike the fairground type, also shook violently from side to side.
Up front, Kellner said: ‘Do you see what I see?’
Some fifty yards ahead the river appeared to come to an abrupt end. They were obviously approaching a waterfall of sorts.
‘Unfortunately. What are you going to do about it?’
‘Funny.’
The hovercraft was being swept helplessly along to what was indeed a waterfall. The drop in the river level must have been at least ten feet. Kellner was doing the only thing he could do—trying to keep the hovercraft on a perfectly straight course.
The hovercraft swept over the fall, dipped sharply and plunged downwards at an angle of forty-five degrees. With an explosion of sound and spray, the hovercraft momentarily disappeared save for the stern. Not only the bows but part of the front of the cabin had gone completely under and in that way and at that angle the hovercraft remained for several seconds before it slowly struggled to the surface again, water cascading off its decks. It settled deeper in the water, the effect of partially losing its air cushion when the stern had come completely clear of the water.
The interior of the craft was a scene of appalling confusion. The angle of fall and the stunning impact had catapulted everyone to the deck. Equipment which had been stored but not lashed aft was now scattered throughout the cabin. To make matters worse, a window had been smashed and hundreds of gallons of water were sloshing about the interior of the cabin. One by one the passengers struggled upright. They were bruised, dazed and slightly concussed, but there seemed to be no broken bones.
As the air cushion began to fill again and the water gurgled away through the self-draining ports, they could feel the hovercraft rise slowly to its normal position.
Three times in the next few minutes the hovercraft went through a similar experience, although none of the overfalls were as high as the first time. At last the hovercraft passed into an area of smooth, rock-free water, but it was then that another danger manifested itself. The forested banks gave way to what was at first low rock, which quickly became higher and higher until they were passing through what was virtually a cliff-sided canyon. At the same time the river swiftly narrowed to about a third of its original width and the speed of the river and hence that of the hovercraft rapidly more than doubled.
Hamilton and Kellner stared through the windscreens, glanced at each other, then looked forward again. Ahead, the steep-sided river walls fell sharply away, but this promised no surcease. A quarter of a mile ahead a jumble of huge black rocks blocked the river from side to side.
‘Bloouy charts!’ Kellner said.
‘Indeed.’
‘Pity, really. These machines are very expensive.’
‘Make for the left.’
‘Any particular reason?’
‘The Horena live on the right bank.’
‘Left, as the man says.’
The rocks were about three hundred yards away. They appeared to form an impenetrable barrier, no two sufficiently far apart to afford passage to the hovercraft.
Hamilton and Kellner looked at each other. Simultaneously they shrugged. Hamilton turned and faced the rear.
‘Hang on tight,’ he said. ‘We’re about to stop very suddenly.’ He had no sooner spoken than he realised that his warning had been unnecessary. They had seen what was coming up. They were already hanging on for dear life.
The rocks were now no more than a hundred yards distant. Kellner was guiding the craft towards the biggest gap between any two of them, the first and the second from the left bank.
For one brief moment it seemed that the hovercraft might just have one chance of making – the passage as Kellner arrowed straight for the centre of the gap. The craft’s bows passed through but that was all: the passage was at least eighteen inches narrower than the midships beam of the hovercraft. With a grinding, screeching tearing of metal, the hovercraft came to an abrupt halt, immovably jammed.