"What's happened?" asked Ruggles anxiously.

"We struck a snag: goodness knows what damage is done. We shall have to run into the bank and wait till morning. Can't see to do anything in the dark. Was there ever such beastly bad luck!"

"Well, you couldn't expect everything to go smoothly. You haven't had much to complain of so far."

"That's true; but just at this moment, when everything depended on our keeping ahead of the train! Listen to it. We must be close on the narrows, to judge by the row it's making."

"It's lucky we hadn't got any farther, then."

By this time Will had steered the vessel to the left bank, running under the overhanging branches of a large tree. Before it came to rest, Azito beat the bank with his pole to scare away any alligator that might lurk there.

"Water's coming in," said Will. "But I'm afraid that's not the worst. We can stop a leak, but we are done if there's anything seriously wrong with the engine. We haven't even got the yacht now."

"Better lift the craft on to the bank, so that she doesn't become absolutely waterlogged," Ruggles suggested.

Everybody got out, Azito removing the small stock of food left in the vessel, and Ruggles and JosÉ lifting the General between them.

"Shall we untie his cords?" said Will. "He must be pretty stiff and uncomfortable."

"It depends what you mean to do. Will you still have a try at getting him to Bolivar?"

"Without a doubt. There's the Chief to consider."

"Then you mustn't loose him. It won't be safe. By the way, what was that howl I heard as we hauled him into the boat?"

"I don't know."

"SeÑor, it was this man," said the Indian, pointing to Machado. "He was going to hurt the engine."

"It's a lie!" cried Machado, in abject fear.

"Tell us what he did, Azito," said Will.

The Indian explained that Machado and the General had conversed in low tones while on the yacht, arousing his suspicion. He told how he had prevented the man from carrying out his intention when the SeÑor's back was turned. Will caught Machado's arm, and he winced.

"Tie him up," said Will. "He shan't have another chance."

Machado was bound and laid beside the General. Food was distributed, but sparingly; the supply brought from Bolivar would soon be exhausted. Then they sat down to wait for daylight, not daring to sleep, in case danger in the shape of beast or man should come. They heard the train rumbling along to their left, until by and by the sound died away.

The dawn stole upon them. They all presented a sorry and woe-begone appearance, none more than General CarabaÑo. When captured he was wearing a long flowered dressing-gown, the colours of which had "run" through his immersion in the lake. He had lost the well-fed and arrogant look which he habitually wore. He made no further protest, but accepted in sullen silence the meagre portion of food allotted to him, and meekly allowed his arms to be rebound when the brief meal was finished.

Will and Ruggles lost no time in making an examination of the hydroplane. They found that a sharp branch of a submerged tree had penetrated the bottom and pierced the petrol-tank, where it had snapped off. The pressure which usually fed the petrol up to the engine had forced it out of the tank, and Will realized with despair that the hydroplane was now of no more use to them than a raft. All the petrol that was left was about a gallon in one of the cans.

"We are clean done, Ruggles," he said. "There's not the ghost of a chance of our getting to Bolivar."

"Except at three miles an hour," said Ruggles.

"With the river closely watched, as it will be, we can't even drift down. Espejo will know we can't have passed. No one but a madman would attempt to go at any pace in the dark, and then he'd come to grief. I was a fool not to take your advice."

"It's no good crying over spilt milk, as the Chief would say. I can manage to patch up the hole, if that's any good."

"Well, it would keep the thing afloat, but that won't help us much. Without petrol we're stuck."

"Is there none left at the camp?"

"Not a cupful. I brought away the last cans before I went down to Bolivar."

"This is a real fix. That Espejo fellow will begin to search the river when he finds we don't pass; he can easily get canoes from some of the natives down the Orinoco. He's bound to find us if we're still on the river, and then with only two revolvers and a couple of knives between us we shall be at his mercy. Seems to me, as soon as I've patched up the hole, we'd better pole up the river and go straight on instead of turning up the stream towards the hacienda. They might not look for us there."

"There seems nothing else. But it'll take a week to get so far. We've got the current against us, and with our load we should do about one mile an hour. Besides, what's to happen then? They can search for us and keep a watch on the river for any length of time, and our food won't last more than two days on the shortest commons, and precious stale it will be, too."

"The only other plan would be to march along this left bank till we come to a village, and then promise the natives a reward to guide us to Bolivar."

"And let Espejo collar my hydroplane! Not if I can help it. Besides, we've got to rescue the Chief."

"Well, you can think it over while I am stopping the leak."

There were a few simple tools on board, and Ruggles, not belying his reputation as handy man, succeeded after an hour's work in making what he called a good temporary job of it. Will watched him for a time; then, seeing from the General's look that he had taken the full measure of the situation, and expected to be rescued by his lieutenant before long, he said to himself fiercely that he would not be bested, and walked away to think quietly how the disaster might be retrieved.

The want of petrol was the only difficulty. When Ruggles had finished his task the hydroplane would be quite capable of continuing the voyage if fuel could be got. He would, of course, not again attempt to proceed by night; and by day Azito could be trusted to avoid snags. But petrol he had none, nor could he get any; and without it he saw no possible way of working the engine. Was there a substitute?

Suddenly he remembered that the Indians were accustomed to use for their torches a resinous liquid made from a kind of pine-tree that grew in certain districts. Would not such a wood-spirit be quite as good for his purpose as petrol? Full of the idea, he hastened back to consult Ruggles. Ruggles shook his head.

"I am up to most things in the machine line," he said, "but don't know more than a baby about distilling or chemistry and such. Still, it's a fact, what you say. The Indians do get a sort of benzine from the trees, and benzine and petrol are first cousins, at any rate. There's no harm in trying. But do you know whether these trees grow hereabouts?"

"No, I don't," confessed Will, with misgiving. "I'll ask Azito."

The Indian's reply was cheering. There was a forest of the right kind of trees some miles inland from the left bank of the river. It could be approached by a creek, not very far from the scene of his adventure with the jaguar. This was fortunate. The spot was a good many miles from their present position, and if Captain Espejo did undertake a systematic search of the river, it would be long before he came to the upper reaches. Will decided to set off at once. The petrol tank having been repaired, he could make use of the last gallon of spirit contained in the almost empty can. It would suffice to carry the hydroplane at a low speed perhaps a dozen miles up-stream; then they must trust to their poles. Will made sure that the sparking apparatus was in good order; the whole party went aboard, with two prisoners now instead of one; and while the morning was still young the hydroplane started for the upper river. At first Will hesitated to set the engine going, in case it was heard by the enemy; but reflecting that they had almost certainly run on to the junction several miles below, and would scarcely have begun to search yet, he decided to get as far from them as he could. There would probably be greater danger if the throbbing were heard as they approached the neighbourhood of the hacienda.

A few miles up Azito caught sight of the little yacht, which on being cast off had drifted for some distance and then run into the bank, where it had wedged itself among the lower boughs of a large tree. Will hailed this as a fortunate discovery. By dividing the party the labour of ascending against the current would be considerably lessened. The boat was hauled off and towed until the petrol gave out; then once more General CarabaÑo was transferred to it, with Ruggles as punter and guardian. Keeping both vessels as near to the left bank as was safe, in order to avoid the full force of the current, Ruggles in the yacht and JosÉ and Azito by turns in the hydroplane steadily poled along. It was slow and tiresome work. In two hours they covered a distance less than the hydroplane in good trim would have accomplished in ten minutes. Indeed, it was late in the afternoon when they came to the little stream, running into the left bank, from which they could gain the creek that Azito had mentioned.

They made their way slowly up this stream for some three miles, passing many small creeks on both sides. At last they reached that which would bring them to the spirit-yielding trees. Their progress now was even slower than it had been. The creek was shallow and very weedy. More than once the vessels were brought up by clinging masses of aquatic vegetation. Not till the short dusk was beginning did they reach the neighbourhood of the wood. Here they found a little sandy strip on which they ran the vessels and disembarked, tired out. After a meagre supper they lay down on a stretch of green sward to pass the night, Will arranging that they should take turns to watch against intrusion by wild beasts.

Early next morning Azito led Will and Ruggles into the wood, and showed them the trees to tap for the spirit. Then he said that he would paddle himself some miles further up the creek in the yacht, until he reached an Indian village where he might obtain food. The others set about rigging up a benzine distillery. This was naturally of the most primitive description. Will first made a clay crucible in which he collected the liquid obtained from the trees; then, connecting this by means of a metal pipe from the engine with a water-bottle he was accustomed to take with him on the hydroplane, he lit a small fire, borrowing a box of matches from Machado, and distilled over the vapour from the crucible to the bottle. It occurred to him to hasten the condensation by placing the bottle in the flowing water of the stream, propping it up with two stones. As soon as he had collected a small quantity of the spirit he tested it, and found that it had all the volatile and inflammable qualities of petrol.

"I'd never have believed it," said Ruggles; "but it will take a month before we get enough to carry us to Bolivar."

"So it will if we don't make more crucibles. There's plenty of clay."

"But what about pipes and bottles?"

"There are plenty of reeds at the edge of the creek: they'll do for pipes. As for bottles, we've got two petrol cans, and we shall have to make some clay bottles. The sooner the better."

They set to work at once with JosÉ to make, first, crucibles out of the white clay which formed the subsoil, and as these were finished, they took them into the forest and set them down at the trees they tapped. While the liquid was collecting they gathered reeds from the border of the stream, and fashioned clumsy clay bottles as receptacles of the vapour. By the afternoon they had a dozen pieces of apparatus at work, and Will was in high spirits at the prospect of filling his tank with the all-important fuel. He found the moist heat of the forest very trying, but willingly endured the discomfort and fatigue.

In the evening Azito returned, staggering under a basket loaded with yuca, a root from which a capital bread could be made, and a goat-skin filled with resinous liquid, purchased in the Indian village. He reported that he had seen, as he came by the edge of the forest, a sloth clinging to the branch of a tree, and several tapirs grubbing for roots, and wished Will to return with him and kill one of the animals for supper; but Will did not care to risk a revolver shot, which might be heard by the enemy if they were coming up the river, and so he decided to make a meal of yuca bread alone.

Next day he set up more crucibles, and then, having at work as many as could be conveniently tended, he adopted Ruggles' advice and rested during the hottest hours. But he grew restless in inaction, and by and by strolled into the forest, whose gloomy depths had a fascination for him. He marked signs of the great struggle for life going on all around. Innumerable creeping plants twined about the trees, striving to force a way to the sunlight in which their gorgeous blossoms might expand, and stifling the vitality out of the forest giants. Beetles and termites scurried hither and thither: birds flitted from bough to bough, pecking at the ripe berries, and carrying away seeds which would germinate in some other part, to be strangled ere they came to maturity, or to grow into stranglers in their turn. Among the other trees the palms rose straight and lofty, their branchless trunks defying the murderous creepers, their leafy crowns dominating as if in contempt the lowlier competitors beneath.

Here he caught sight of a cavy nibbling a nut, there a peccary hunting among the undergrowth for seeds. Moving cautiously among the trees, he had a glimpse of a labba peeping out of a hollow trunk, and disturbed a deer which was lying amid the bushes, its colour harmonizing so well with them that he had not distinguished it until it moved, though it was within a few feet of him. In the foliage overhead howling monkeys kept up their resounding notes, and tree-frogs boomed and whistled incessantly. As evening drew on, the forest was filled with the continuous hum of multitudinous insects; owls hooted, goatsuckers flitted from bough to bough uttering their weird cry, and snakes uncoiled themselves from the branches on which they had taken their siesta. Will would have liked to spend days in studying these creatures of the forest.

Returning to the camp, he discussed with Ruggles what should be done when the cans were filled.

"It will be two days more before we have enough spirit," he said. "I think we should start from here in the early afternoon, run down to the narrows at half-speed, and try to rush them at dusk. No more night running for me. We might strike a snag again, and we can't risk it a second time."

"Couldn't we simply drift?" suggested Ruggles.

"Too risky--not from the river, but you may be sure that Espejo will watch it day and night. He will know we haven't got past him."

"You had better send Azito out to scout, then, before we start."

"A good idea. But I am sure we shall have to trust to our speed alone. We can't fight them with only two revolvers between us. Our only chance is to get to the narrows before we are seen, and then go at top speed. A quarter of an hour would do it."

On the second night thereafter the petrol tank was full, and there was a considerable quantity of spirit left over in one of the cans. Will ordered Azito to go out in the yacht as soon as it was light, and see if he could discover the movements of the enemy. While the Indian was absent the others prepared for the adventurous voyage. The two prisoners, who had sullenly watched the making of the benzine, were laid in the bottom of the hydroplane: Will and Ruggles thoroughly overhauled and oiled the engine, and cleaned the planes and the propeller of the weeds which had already begun to cling about them.

About nine o'clock Azito returned. His report was that he had seen a boat filled with armed men coming slowly up the stream, searching the creeks on either side. There were twelve men, all armed with rifles.

"We must get out before they come up here," said Will. "Otherwise we shall be like rats in a trap. How far are they down, Azito?"

"About three twists, seÑor."

This was not very enlightening. The Indian's "twist" may be of any length, according to circumstances. But Azito went on to explain that the enemy were not far below a creek that ran into the stream from the opposite side, which, as nearly as Will could recollect, was about half-a-mile from that up which the hydroplane had come. He had little doubt that if the enemy were proceeding systematically they would search the opposite creek first. Accordingly he ordered all on board. The yacht was left. Will promised it as a present to Azito when his work was over, having no doubt that Mr. Jackson would purchase it of De Mello. Then they poled the hydroplane down the creek until they came within a few yards of the point where it entered the stream. There they drew into the bank, where they could not be seen until the enemy came right opposite the mouth.

Many tall trees grew at the edge of the stream.

"Climb up, Azito," said Will, "and tell us when the boat enters the creek on the opposite side."

In a few minutes the Indian was snugly perched among the thick foliage at the top of one of the loftiest trees.

"We'll start as soon as we know they're in the creek," said Will to Ruggles. "That may give us time to get several miles down before we're discovered."

Several minutes passed. Then they saw Azito sliding down the tree with the agility of a monkey.

"They have gone into it, seÑor."

"Very well. Pole us out. It's neck or nothing, Ruggles. Have you got your revolver handy?"

"Trust me. You'd better give me yours. You can't use it and steer too, and I'm rather a dab with my left hand."

"Here you are, then," said Will, smiling as he handed the weapon to him. "But I hope we shan't come to close enough quarters for you to use it. We're off, and good luck to us."