NIPPED IN THE BUD.

"There comes Manuel!" remarked Andy, after they had been nearly an hour talking on the deck of the little power boat.

"Yes," remarked his cousin, who was also on the watch, "and trailing behind him I can see several native carts containing fruits and new supplies. Manuel surely means that we shall not go hungry while on the river."

"Then I shall be going, my friends," said Señor José. "I have told you all I know. I have warned you to beware of the revolutionists along the river bank. I have even given you a hint that to delay longer in Barranquila might endanger your enterprise; since the government is just now very anxious to acquire such wonderful modern agents of warfare, as your aeroplane. It only remains to shake your hands, both, amigos, and wish you every good fortune your valor deserves."

They squeezed the hand of the fine old Colombian gentleman with vigor. Never would Andy forget how he had spoken concerning his interest in the sacred duty that had brought the son of the missing aeronaut to his country.

Frank had given strict orders that none of the crew should go ashore, and also that no strangers be permitted to board the craft while they lay there at the old wooden wharf.

"But," said Andy, when they were speaking about this matter, as preparations began to leave the port, "that hasn't prevented the crew from holding an animated confab with those ashore. There has been a constant jabbering and laughing between our fellows and those others."

"Yes," admitted Frank, "and I've seen several of the crew talking mysteriously with some of those chaps. I wish now the señor had thought to indicate which was the secret agent of the revolutionists he saw on the dock. But all the same I've marked the two fellows I suspect, and I'm going to keep a close eye on Enrique, and the little fellow with the quick motions we call 'Cospita,' because he's forever ejaculating like that."

"And if you find out that they're meddling with the boxes?" asked Andy.

"H'm! I guess it'll be a bad day for Enrique and the jumping-jack, that's all," laughed his cousin. "But there goes the cable, and it looks like we might be off at last."

"I'm not sorry, for many things!" declared Andy, with a sigh of positive relief. "The good señor got me scared by what he said about his government wanting just such things as our little 'Bug'; and that the officials might have orders to find some sort of ridiculous excuse for grabbing it."

"Same here," admitted Frank. "In fact, that bothered me a whole lot more than the chances of trouble along the river from the boys who want to get their man seated in the president's chair, where he could hand out the loaves and the fishes. We can resist them, and be backed by authority; but if the government officers once took us in we'd have to give up our job. And that would break your heart, Andy."

"Yes," said the other, drawing a long breath, "I'm afraid it would. Listen! There goes the whistle. I told the pilot not to make more fuss than he could help when we drew out."

"Which was quite right. I'm watching that little chap, Cospita. See him wave his hand to some one ashore? Yes, and that surely looked like a signal the fellow returned. We are going to have trouble with that boy yet, Andy."

"Well, that will be bad for Cospita," was all the other remarked; for he was eagerly watching the growing space between the boat and the shore.

"Look, Frank," he remarked, after a little time had elapsed, "as sure as you live, there is an officer in uniform just arrived on the dock, and backed by a squad of soldiers! He seems to be surprised at discovering that we have gone! Now he beckons, and waves his hat! Listen to him shouting something in Spanish through his hands. I guess we didn't get away from Barranquila five minutes too soon!"

"It looks like it," said Frank, grimly. "But we've complied with the law of the land, and nothing short of a cannon could make us turn back now. All the same, I'm going to the pilot house, and keep an eye on Felipe. I think he's trustworthy; but an ounce of prevention is better than a pound of cure always."

"Good for you!" Andy shot after his departing chum; though he himself remained there by the rail, watching what took place ashore.

Frank quickly entered the pilot house. Here a dark-faced, middle-aged man handled the wheel. Frank immediately noticed that he was listening to what the gold braided officer ashore was shouting angrily. He also looked a bit troubled.

"What does he say, Felipe?" demanded the young aviator.

"He commands us to return, señor," replied the other.

"Well, pay no attention to him, Felipe. We have complied with all the regulations and red tape necessary. The American consul will back us up. It is your business to simply steer this boat up the river until we arrive at Magangue."

"Si, señor. But when I return they will surely make the trouble for me," replied the pilot, shrugging his narrow shoulders.

"Not at all, Felipe," declared Frank. "You can swear that we made you do as we wished; that you dared not turn back, since your life was in danger. We stand ready to shoulder all the blame there is."

The dusky face of the old river pilot, whom they had fortunately run across in Maracaibo, became wreathed in a smile.

"Perhaps the young señor would not mind showing the Capitan?" he suggested.

Frank grasped his meaning; and pretending to scowl darkly, he drew out the revolver which Colonel Josiah had made him promise to carry while down in this explosive country.

"Now, Felipe," he said, as he clapped the weapon deliberately against the head of the pilot, "your gay Capitan can easily see what I am doing, and will understand what it means. You keep right on up-river; and if you dare disobey it will be bad for you, Felipe!"

The shrewd old pilot tried to smother an expansive grin as he replied:

"Si, señor, I am in your hands; do with me what you will. I dare not refuse longer. See, I have made one effort to turn about; but you threaten, and I give it up. He no longer calls. He knows old Felipe is powerless. It is well!"

Frank stood by him until the wharf was dimmed by distance. Then he hastened to rejoin his cousin and chum, who was mightily pleased to hear all about it.

"Do you think they will chase after us?" queried Andy, still worried.

"Oh! I guess not. It isn't so serious as all that. They know they can get us when we come down the river, no doubt," replied Frank, carelessly.

"Then I'll care precious little what becomes of the Bug," observed Andy, with a sigh of relief.

"I suppose you mean that by that time you'll either have found your father; or else given up the search as hopeless. Is that it, old fellow?" Frank asked.

"Yes, one or the other. And now, we've got time to remember the other warning good old Señor José gave us."

"About the revolutionists trying to stop us on the way and get our cargo? Yes," Frank went on, "that must be on our minds constantly. I'm going to talk with old Felipe about it soon. I have a hunch that he can be depended on to back us up, for he's got a grudge against the man these fellows want to send back into the presidential chair. Señor José told me Felipe lost all his family through the persecution of that man and his party."

"A bully good thing to know," assented Andy. "For we can be dead sure of Felipe all the time; and through him get pointers about the rest of the crew. There are a few goats among the sheep, and when we make sure of it, I'm just going to pay them off, and chuck them ashore in any old place."

"Now that's what I call a clever scheme," Frank declared. "They would have no kick coming, because, you see, no Spanish American could ever complain of getting his wages without having to do any work!"

"I guess not," Andy remarked, grinning assent.

Upon further conference it was decided to divide the day and night into watches, so that one of them could be on deck and alert all of the time, while the other secured some sleep.

Treachery, they knew, would be likely to crop out during the night time. Those on board may have found some means of telling their confederates ashore about what time the boat would reach a given point. And by means of some native method of telegraphing, such as by means of wigwag flags, or "smokes," the news could be hurried up the river much in advance of the vessel that was butting against the strong current of the swollen Magdalena.

Then Frank went forward to have a long talk with the trusty pilot. He took Felipe into his confidence, telling him for the first time all about their sacred mission to this region of Colombia. And in this way, as well as by promising to double his regular wages, Frank quite won the old fellow's heart.

In return Felipe was able to give his employer considerable valuable information connected with the crew. Frank mentioned no names, and hence he was satisfied that he had made no mistake in his calculations, when among the list of "suspects" given by the pilot, both Enrique and little "Cospita" were included.

"We must get rid of them both as soon as possible," he announced. "So just before night sets in, draw the boat to shore near some village or town. Then I shall pay both men off, get their signatures to the fact, and insist on their going ashore. Meanwhile, as you find opportunity, post a few of the faithful ones to the fact that we suspect them of being insurrectoes."

Felipe declared that the idea was superb. He was growing more and more fond of these venturesome young Americanos, who were so generous, so brave, and who had come all this great distance, actuated by such a noble purpose. So many a man may easily feel when his salary has been unexpectedly doubled.

During the balance of that afternoon the two young aviators continued to alternately sit upon the deck, and wander about the boat, watching things. Frank had the precious aeroplane locked up in the spacious lazerette, which being also used as a storeroom for extra supplies, that the circumstance need not be looked upon as singular.

"I'm determined that no ill may happen to that machine, if I can help it," he said to his chum, when speaking of what he had had done.

And Andy, of course, fully endorsed his course.

So the sun began to draw closer to the western horizon, represented by the distant mountains where the chief inland town of the province, Sabanalarga, lay.

Felipe had spoken of a place on the eastern bank of the river, where they could draw in, and put the two suspects ashore. And Frank told Andy to back him up in what he was about to do.

"There's the town ahead, only a little place, but it answers our purpose, for they can never say we deserted them in the howling wilderness," and Frank, who had been counting out some money, started to make his way down to the waist of the vessel, where most of the crew had gathered, wondering what the object of the landing might be.

Enrique and "Cospita" were surely very much astonished and alarmed when told that their services were needed no longer—that it was ascertained they were carrying too many men; and also that they were to receive full pay for the time they had engaged.

Of course they started to make objections, and the air was filled with various excited exclamations; but Frank proved as firm as adamant, and showed the automatic revolver sticking from his pocket all the while, a fact that kept the two men from venturing to do more than shout.

Clutching their money they were pushed ashore by members of the crew, who doubtless could give a pretty good guess as to what the whole thing meant, since they had talked with Felipe.

"A good riddance of bad rubbish!" declared Andy, as the boat again started up the river, leaving a pair of yelling natives behind, making all sorts of furious gestures with both arms.

"Yes," pursued Frank, reflectively, "and if we wanted any more evidence that we nipped a conspiracy to seize the vessel in the bud, there it is in their anger at being paid for not working. Nothing like that was ever known before down in this country, as Felipe says. And now, Andy, I feel that we're another step nearer the carrying out of your great task."

"Oh! I hope so," said the other, his face marked by an eagerness that told of the one sole wish of his youthful heart.