On return to the terrace on which stood the dwelling-house and the power-station, the already wearied defenders immediately set to work to fortify the approach from the interior of the island.
Sixty yards from the house began the narrow defile that afforded a road between the settlement and the treasure cave. On either side the cliffs towered to nearly one hundred feet, so that once the savages took possession of those heights the terrace could not be held.
"I suppose we cannot launch one of the canoes, provision her, and make a dash for safety?" asked Terence.
"It"s too risky," replied Mr. McKay. "If seen, we should be overhauled in less than half-an-hour. No, we must stick to this place and hold it to the last, so let"s set to at once."
With the energy of despair all hands worked with feverish desperation, their loaded rifles lying within easy reach, while every moment they expected to hear the savage shouts of their bloodthirsty foes.
Across the foot of the defile they dug a shallow trench, lining the inner side with boxes, crates, and other articles so as to form a barricade. It was a feeble defence at the most, but with five skilled riflemen armed with modern rifles behind it, the breastwork might serve its purpose.
To guard against a shower of missiles from the summit of the adjacent cliffs, a lean-to roof of stout planks was hastily constructed, earth being thrown upon it to deaden the shock of heavy stones, while the remaining boxes of ammunition were brought up so that the supply was ready to hand.
"Look here, Quexo," said Mr. McKay, "go to the stockade at the top of the cliff-path, and keep watch. Don"t move, whatever happens, till we call you, even if you hear us firing; but if you see any signs of the savages landing on the beach, fire your rifle. You understand?"
"Yas, ma.s.sa," replied the mulatto, and s.n.a.t.c.hing up his rifle he ran to his appointed post as quickly as his legs could carry him.
"We mustn"t forget water and provisions, Ellerton," said Mr. McKay.
"They must be brought ready to hand, for if the fighting is prolonged we will have no time to go to the house for food and drink."
"I"ll bring some biscuits and water," replied Ellerton. "I remember how dry I was during the last attack. But, do you know, sir, I begin to feel quite hopeful, now our defences are completed."
"It"s certainly improved the situation, Hoppy," replied Mr. McKay.
"But we"ve a tough job in front of us. Eight or nine hundred savages, each eager for a fight and keen on plundering us. We must not be over-confident. But now cut off and get the provisions and water."
Ellerton quickly performed his task, and, having placed the water and biscuits in the spot indicated by Mr. McKay, he observed:
"It"s a pity we can"t use some of that dynamite again."
"We cannot make the trucks run up hill, and, besides, there are no rails, if that"s what you mean."
"No, sir, I know that," was the reply, "but I thought that if we could place a few tins of the stuff on those rocks we could easily manage to put a bullet through them at two hundred yards."
"By all means we"ll try it," said Mr. McKay heartily. "As I"ve often said, you"re a brick."
Accordingly Ellerton ran to the cave where the explosive was stored, and returned at a walking pace with nearly forty pounds of the dangerous compound.
"Don"t use all of it," said Mr. McKay. "Here, take these three tins; they"ll be a better mark for us."
Into each of the metal boxes Ellerton placed about ten pounds of the explosive, adding a few handfuls of iron, nails, and bits of sc.r.a.p metal. Then, climbing over the breastwork, he was handed the rough-and-ready bombs.
Thus laden he cautiously made is way up the rough defile till he reached a spot about two hundred yards from the defenders" position.
Here a ma.s.s of fallen rock, the highest part ten feet in height, formed a suitable site for his operations, and without mishap the tin canisters were placed in such a position that they could readily be seen above the heads of any number of savages likely to come between them and the defences.
Meanwhile Mr. McKay was busily engaged in preparing a number of hand-bombs, charging several small tins with explosive mixed with nails, and lashing a short length of thin rope securely to each completed missile.
"I"m going to place these things here," said he, pointing to a small cleft in the cliff. "Be careful not to knock them, or we shall punish ourselves."
"How are you going to throw them?" asked Ellerton, who had meanwhile returned from his expedition. "If they fall too close they will do us harm, and I don"t think they can be thrown more than the length of a cricket-pitch."
"By this," replied Mr. McKay, holding up a short stick with a notch cut in one end. "I lay the rope along the stick and jam its end between the palm of my hand and the wood. By swinging the stick a greatly increased power is obtained; at the right moment the cord is released and the bomb flies off at a tangent."
"I see," replied Ellerton, and although he had great faith in Mr.
McKay, he found himself wondering what the result would be did the missile not fly off at the correct tangent.
Slowly the hours dragged, for, all the preparations for the defence being completed, the tedious and nerve-racking ordeal of waiting for the fray told more upon the energies of the defenders than would the actual fight.
The sun was sinking low ere the alert watchers detected the distant shouts of the savages.
"They"ve found the trail leading to the cave, I fancy," remarked Mr.
McKay. "They"ll be here before dark, unless I"m much mistaken.
Terence, you had better start the dynamo and see that the searchlight is ready for use. Tell Quexo to come here and take your place. You must take sole charge of the seaward side of our defences. Now, listen: whatever you do, don"t train the searchlight this way till I discharge my rifle. Keep the rays playing on the sh.o.r.e, and occasionally flash the beam skywards. It may bring us aid. When you hear the shot, slew the projector round and direct the beam straight up the defile. You quite understand?"
"Yes, sir," replied Terence. "You can rely upon me."
"I feel sure of it," was the quiet reply, as the lad set off on his responsible and single-handed task.
"It will soon be dark," said Ellerton. "That will be all the better for us, for these brutes won"t find their way so easily."
"I don"t think the darkness will stop them, provided they are not afraid of it. These savages can find their way by night like cats.
Hullo, Quexo, tired, eh?"
"No, ma.s.sa, not berry tired. One eye he go sleep, den oder eye he go sleep."
"Quexo means to go to sleep with one eye open," said Andy. "We ought to take a leaf from his book."
"Yes, we"ll feel the want of sleep as much as anything," replied his father. "Once the attack opens there will be little respite. It wouldn"t be a bad idea if you three were to s.n.a.t.c.h a few moments" rest.
I"ll wake you up in time, never fear."
This advice was acted upon, Andy, Ellerton, and Quexo stretching themselves out on the ground at the foot of the barricade, and in a few minutes, in spite of their risky position, the lads were sleeping soundly.
Night had now fallen, and the ghostly white beams of the searchlight swept the sh.o.r.e, the noise of the distant surf mingling with the subdued fizzing of the carbons as Terence diligently attended to the working of the projector.
The far-off shouts of the savages had now ceased. Probably the invaders, satisfied with the success of their unopposed landing, were awaiting the dawn ere they commenced their attack.
Silence, when intent upon a hand-to-hand conflict, was a stranger to them, and for this Mr. McKay was thankful, since few things are more trying than the expectation of a sudden onslaught by an unseen and unheard foe.
Notwithstanding this peculiarity on the part of the invaders, Mr. McKay did not for one moment relax his vigilance. Rifle in hand he stood, rarely altering his position, and gazed stedfastly in the direction of the defile, his ears alert for the faintest footfall or shout that might denote the approach of the bloodthirsty savages.
Although the defenders were cut off from their carefully prepared retreat in the treasure cave, another shelter yet remained. The cavern where Blight had been kept a prisoner had been since used as a temporary storehouse for several casks of provisions. As a last resource it could be held, possibly for a month.
But if the natives took the island and showed no disposition to leave, after having plundered the white man"s possessions, even that refuge would be a means of only prolonging the sufferings of the defenders.
Hopeful as he generally was, Mr. McKay fully realised that he and his companions were in a very tight fix, and unless the skill and resource of civilisation could overcome the superior numbers and reckless courage of the savages, nothing short of a timely rescue would save the defenders from death.
Then Mr. McKay found himself counting the number of days which had elapsed since the French schooner had exchanged signals with the island. Even allowing for light winds and calms she would have had time to reach some port, and, should the captain keep his word, a gunboat or at least a trading vessel might be on her way to the rescue.
Mr. McKay"s thoughts were interrupted by a loud chorus of savage shouts at no great distance, then came the confused noise of scuffling feet tearing down the defile.