`But you don't know which way the explosion would expend itself,' put in Ginger aghast.
'You'd bust the dam all right, but you might blow the top clean off the island—or blow the side out of it, causing the whole place to collapse.'
`My orders are to destroy the depot if we have to abandon it,' answered Biggles grimly. '
Whatever else happened, the explosion would release the water, so von Stalhein and his gang would get their ears wet when they weren't expecting it—not that I care two hoots about them. I'm only concerned with flooding the depot before they can shift the stuff out of it.'
`This ought to be worth watching,' murmured Ginger.
Biggles's manner became brisk. Àlgy, put the code-books in the machine. I'm going up to the top of the rock. If anything unforeseen happens before I get back, take off and head for England. If you have to come down in enemy waters tie something round the British code-book and sink it. Ginger, you come with me.'
Putting the machine-gun on his shoulder, Biggles set off up the massif.
It was not an easy climb when Ginger had attempted it, but now, with snow about, it was even more difficult. However, by strenuous labour, and by helping each other over the worst places, twenty minutes saw them at the top.
Ginger was the first to reach the edge and look down. He gave an exclamation of dismay.
Biggles joined him. 'That's von Stalhein's drifter down there, in the cove,' he said. 'I knew it was there. That looks like von Stalhein himself standing on the bridge, talking to the captain. I think I'll let him know that we're still alive.' He lay down in the snow, and taking careful aim, poured a stream of bullets down on the drifter.
Von Stalhein made a leap for the companionway and disappeared; some other men who were standing about also darted for cover.
`Rotten shooting,' said Biggles disgustedly. 'I couldn't hold the gun still in this snow; it jumped all over the place as soon as I pressed the trigger.'
A bullet splashed against a rock just below him, and whistled away into the leaden sky.
Biggles drew back. 'There's no sense in making
targets of ourselves,' he said. 'They won't show themselves again for a bit. I've seen all I wanted to know, anyway, so we may as well get back.'
Ginger caught his arm and pointed seaward. `What's this coming ?' he cried.
Biggles looked up. 'A couple of German destroyers, I fancy,' he said evenly. Ton Stalhein must have called them up by wireless. It doesn't make much difference; I don't see how we could have got out, anyway. We couldn't get near that flying-boat without coming under fire of the drifter. Let's hope the destroyers come into the cove.'
`Why?'
`You'll see. I think you'd better stay here while I go down and get the bomb in position. I'
ll ask Algy to wait until it goes off; then, if he gets back safely, he can tell Raymond what happened. You watch the destroyers. If they come into the cove, let me know by raising your arms above your head. I shall take that as the signal to blow the charge. Is that clear ?'
`Clear as daylight.'
`Good. I'll get down now. After the bang you'll be able to watch what happens.' Biggles smiled and hurried down to where Algy was waiting by the machine. His manner was still inconsequential, but his heart was heavy, for he knew that the last hour of the base had come, and he felt that he
ought to have made better use of it. He knew, too, that except for something like a miracle, their own time had come. Whether they were blown up by the bomb, or whether they went down through the cave to surrender themselves to von Stalhein, it would come to the same thing in the end. Not that he contemplated going down. His orders were to destroy the base and he was thankful that he had a means at hand to achieve that object.
He had always had a feeling that the end might come this way, for it was as obvious to him, as it had been to Colonel Raymond, that such a base, situated as it was practically in enemy country, could not last for any great length of time.
`What 's happening in the cove ?' asked Algy as Biggles joined him.
Ìt seems to be getting busy. There's a drifter and a German flying-boat already there, and two German destroyers just coming in,' smiled Biggles. Òur friend von Stalhein might almost be justified in thinking that he has got us all safely bottled up at last.'
`Have you any reason to suppose that he hasn't ?'
`None whatever. Well, that's all. I want you to stand fast and wait for the result of the explosion before you take off. You will then be able—I hope —to tell Raymond that we wrecked the base before the Boche could shift the stuff. You'd better not start your engine yet. Von Stalhein has no idea
that we've got a machine up here, and we don't want him to know, or the destroyers might start slinging shells across before you can get off.'
Algy's face was expressionless as he held out his hand. 'Cheerio,' he said. 'I shall fly back here, of course, if I get the code-books home. If I can persuade the Air Ministry to let me have one I'll borrow a flying-boat; so hang on, if you can, on the off-chance.'
Biggles smiled as he squeezed Algy's hand. 'Do your best, old lad,' he said. Then, turning to the Flight-Sergeant: 'Bring the line and help me down to the ledge,' he ordered.
Whistling softly, he picked up the time-bomb and walked towards the cliff.
CHAPTER XVIII
BIGGLES STRIKES BACK
FLIGHT-SERGEANT SMYTH lowered Biggles to the ledge and waited for further instructions.
`Drop the rope,' Biggles told him. 'I shall need it. Thanks. Now listen carefully. You can see Mr. Hebblethwaite from where you are I think ?'
`Yes, sir.'
`Very well. There are two German destroyers on their way here. If they come into the cove Mr. Hebblethwaite will signal by raising both hands above his head. You will pass the information on to me via Briny, whom I shall send across to this ledge. I shall send Roy on over here too. I shall be at the far side of the lake.'
`Very good, sir.'
Biggles undressed, coiled the rope about his middle, and picking up the bomb, shouted to Briny to show a light. Arriving at the far side, he was pleased to find Roy looking much better, and sent him across to the ledge. He then ordered Briny to lower him to the bottom of the rock that dammed the water, where he waited until the message had been passed on to him that Ginger had made the signal. He was relieved to get it, for more than once stealthy sounds coming from below suggested that the enemy were scouting up the fissure.
He timed the bomb for a quarter of an hour, and placing it in position, piled around it all the loose rock that he could find. He then ordered Briny to pull him up, and together they crossed over to the ledge, from where, after the rope had been thrown up, they were all hauled to the top.
Biggles ordered every one farther away from the cliff in case the explosion should start a landslide, and then looked about him. Ginger was still on the top of the massif, looking down into the cove. Algy was standing by his machine ready to start up at an instant's notice. The others were standing near him.
`How long before the balloon goes up ?' shouted Algy.
Ì set the bomb for a quarter of an hour, so there are still about ten minutes to go. I'M
going up to the top to join Ginger. Don't be in a hurry to take off. If anything unforeseen occurs get off right away without waiting for me to come down; otherwise hang on, and I'll try to give you some definite information to take to Raymond.'
Algy nodded. 'Good enough. But don't wait too long. I don't like the look of the weather; it may start snowing again.'
Biggles glanced at the sky. 'It doesn't look too good,' he admitted, and then set off up the massif.
He was still only half-way up when there was a
muffled roar, and the whole island quivered like a jelly. He was nearly thrown off his feet, and for the next minute or two was kept busy dodging rocks that had been shaken loose and were rolling down the steep side of the massif.
Ginger, lying at the edge of the cliff, watching t
he destroyers manoeuvre into position in the cove before dropping anchor, clutched at the rocks on either side of him as his perch shook under the violence of the explosion. Several pieces of rock on the face of the cliff were shaken loose and went hurtling down into the cove; some fell sheer; others struck the cliff again lower down and bounced far out over the water. Shouts of alarm rose from below; men appeared on the deck of the drifter, von Stalhein among them; others appeared at the mouth of the cave. Some were launching a dinghy.
After that there was a brief lull, although pieces of rock continued to detach themselves from the side of the cliff and whirl downwards, sometimes taking minor avalanches of loose shale with them. Then, from the very heart of the rock, it seemed, came a terrifying rumble, like distant thunder. The rock began to tremble anew, and Ginger experienced a feeling of acute alarm not far short of fear, for the sensation was one of lying on a volcano about to burst into eruption. His alarm was in no way lessened when a great mass of cliff broke away,
and with a roar like an express train went plunging down into the void.
By this time the destroyers, their propellers threshing the water into foam, were turning towards the open sea. On their decks men were running about in a panic. The drifter followed; being smaller it moved faster, and trying to cut across the bows of one of the destroyers, came into collision with it. There was more shouting.
Ginger turned and saw Biggles coming hand over hand up the massif. 'Look out!' he cried shrilly. 'The whole island's falling to pieces!'
The words had hardly left his lips when the cliff in one place started to bulge; it was as if it were made of elastic, and was being forced out under terrific pressure. Then, with a crash like thunder, the bulge burst. A mighty torrent of water shot clear into space. Rocks and water went plunging down together. Simultaneously, from the mouth of the cave there issued a swirling yellow flood.
Ginger felt Biggles throw himself down beside him, but he neither looked at him nor spoke. He was too spellbound by what was happening below. At first the falling rock and water prevented a clear view, but as the first pent-up energy of the water subsided somewhat—although a cataract continued to pour down the cliff—the scene became clearer.
It was a terrifying spectacle that met his eyes,
more like an upheaval of nature than an artificial catastrophe. Before the weight of water, the three vessels were being swept about like toy ships. One of the destroyers had rammed the drifter amidships and had stuck fast. Both were grinding against the spit that formed one arm of the cove. The second destroyer, with black smoke belching from its funnels, still had its nose pointing towards the cliff, but in spite, of its engines, was being slowly carried backward, and was in danger of colliding with the other two vessels. The flying-boat, being lighter, had already been swept out to sea, and now drifted helplessly.
The flood still pouring from the cave went swirling out to sea, a turgid yellow tide that carried with it all sorts of debris, and made a clear line of demarcation with the deep water. Men were clinging to the wreckage which, Ginger noticed, consisted largely of broken timbers, obviously the remains of the buildings of the depot.
`What a picture,' muttered Biggles in a tense whisper. 'I wish I had my camera. Raymond will never be able to say we didn't go out with a bang. What 's happened to the cliff underneath us ?' He strained forward trying to see it.
`Mind you don't go over!'
Biggles backed hastily. 'There seems to be a tidy hole there. I hope this piece we're on doesn't collapse; it doesn't look any too safe. Hullo, look at the drifter; she 's sinking. The crew are abandoning it judging by the way they're jumping on to the destroyer. There goes von Stalhein. That fellow seems to bear a charmed life.'
`He probably thinks that about you.'
Biggles grinned. 'True enough,' he agreed. `The other destroyer's going to get away, now that things are a bit quieter.'
Ìt looks like it. Still, she doesn't look any too happy. I bet her wireless is buzzing, asking for help. They'll have to hang around to pick up the people who are marooned on the rocks.'
Several marines, presumably survivors of the party that had been in the cave, had managed to secure a foothold on the rocks that ringed the cove.
`Well, what happens next ?' inquired Ginger, watching the second destroyer back slowly out to sea.
Àsk me something easier. We've done about all we can do. Even if we could get down through the cave, which I doubt, I don't think we could take on a destroyer single-handed.'
`We could stop anybody from getting up here.'
`Yes, I think we could do that, but why need they bother to come up ? They know we can't get away. All they have to do is sit where they are and wait for us to fall off from want of food. We've
one card up our sleeve though. They don't know we've got a machine up here, so it'll shake them when Algy takes off. I may as well tell him to go ; there 's no point in him staying here any longer now that the fireworks are over.'
One of the destroyer's guns flashed. A shell whined up and sprayed the rock with shrapnel.
`Who says the fireworks are over ?' muttered Ginger drily. 'They can see us evidently.
We'd better get down.'
Biggles turned towards where Algy was standing ; cupping his hands round his mouth he let out a hail. 'All clear!' he shouted, pointing to the sky. 'Tell Raymond we've flooded the place and bust up a destroyer and a drifter at the same time.'
Algy waved to show that he understood. `Cheerio!' he yelled; 'I'll be back in a couple of days.'
Biggles caught Ginger's eye and smiled. 'Trust old Algy not to be left out of the finale.
All the same, I don't see what he can do if he does come back--but it 's no use telling him not to.' He sat down on a rock to watch the machine take off.'
Ginger squatted beside him. 'I shall be glad when he's up topsides,' he said anxiously. 'I am by no means sure that he 's got enough room to get off. If he touches those spikes of rock with his wheels
`Don't think about such things,' protested Biggles.
Algy was now in his seat. The propeller came to life.
Ì hope there isn't another piece of solder in that petrol pipe,' murmured Ginger.
`He's testing her now,' put in Biggles, as the noise of the engine rose to a crescendo, and then died away again as it was throttled back.
Ìt doesn't sound too good to me,' declared Ginger, with his head on one side.
`She's giving her revs, anyway, or he wouldn't be so crazy as to try to take off,' returned Biggles. `There he goes.'
The Platypus was racing across the flat part of the rock, apparently to certain destruction.
Fifty yards from the jagged teeth that barred its path the wheels had not lifted.
`He's deliberately holding her down,' said Biggles, whose face was deathly white.
Twenty yards from the edge of the cliff the Platypus jerked into the air, its wheels missing the rocks with a foot to spare.
Ginger wiped imaginary perspiration from his brow. 'Phew,' he gasped, 'I can't stand much of that. I ' He broke off suddenly and started to his feet.
Biggles, too, sprang up, his lips in a straight line. Comment was unnecessary. The engine was
spluttering. There came the explosion of a backfire. The engine picked up again, but only for a moment. Another splutter, and it cut out dead.
As soon as the engine had started missing, the nose of the machine had tilted down. Now it went into a glide, and began a flat turn back towards the rock, about a hundred yards behind it.
`He'll never do it,' said Biggles in a dull voice. `He can't get back. It's impossible. He'll go nose first into the cliff if he tries.'
What he had said was obviously so true that Ginger did not answer. He was incapable of speech. With his muscles as taut as if he were flying the machine himself, he could only watch. He saw the machine turn away from the island as Algy, too, realized that he was attempting the impossible. A moment later the Platypus disappeared from s
ight below the level of the cliff.
`He 's going down on the sea—it's all he can do,' snapped Biggles, and started off down towards the place where the machine had disappeared, jumping from rock to rock in a manner that was little short of suicidal. The Flight-Sergeant, Briny, and Roy were also racing towards the place. With his heart in his mouth, Ginger followed Biggles.
Breathless, they arrived at the edge of the cliff just as the snow began to fall again, although it was not yet too thick to prevent them from seeing the machine land heavily on the water. But the captain of the destroyer had also realized what was happening, and now the long grey hull, flinging a bow wave high into the air, came racing towards the helpless aircraft.
Ì'm afraid it's all over bar the shouting,' said Biggles heavily. 'He hasn't a chance.'
`He seems to be mighty busy doing something,' observed Ginger, staring at Algy, who was now standing up in his cockpit. `What's he doing ?'
Ì know what he's doing,' said Biggles bitterly. `He 's tearing the British code-book to pieces so that he can set fire to them.'
`What! In the machine! He'll have the whole thing in flames in a couple of minutes. If his tank catches fire he'll blow himself up.'
`He'll risk that as long as he destroys the book,' declared Biggles. 'Confound the snow,'
he added viciously, as the blizzard suddenly thickened and blotted out the sea. They could not even see the water.
For a minute the watchers on the cliff stood still, listening, vainly straining their eyes.
Ì thought I heard a shout,' muttered Ginger.
The words had hardly left his lips when a violent explosion again shook the rock, although the noise was muffled somewhat by the snow. A moment later came the sound of debris falling into the water.
`That's his tank gone up.' Ginger's voice was little more than a whisper.
Biggles said nothing. With his chin cupped in the palm of his hand he sat staring, white-faced, into the driving snow.
CHAPTER XIX
MAROONED ON THE ROCK
FOR some time nobody spoke. The only sound was the chugging of an invisible motorboat somewhere on the sea below.
21 Biggles In The Baltic v3 Page 15