Just as both of them had suspected it was Señor José. Receiving their communication from Maracaibo, he had been on the watch.

"And he tells me, Andy, that there has been no new development since he wrote. So that fear of yours must be set at rest. Just depend on it, we're in this game to win out, and your dear father is going to be found," Frank went on.

Presently they were deep in conversation. The boys found Señor José a very intelligent gentleman indeed. He had spent some years in Washington in connection with the embassy of his government, so that he not only spoke and wrote English well, but had a high opinion of Americans; something that the vast majority of his fellow-countrymen failed to acquire, being possibly fed on stories that may have had their inception in German or English trade sources.

From him Frank extracted all the information he could concerning the wonderful country lying between Magangue and the Isthmus of Panama, covering possibly some three hundred miles. It was little enough. Most of it, he declared was a terra incognita, being utterly unknown land.

"But," continued the obliging señor, "you will certainly be able to learn more concerning this when you see my fellow-countryman, Señor Mendoza; for all his life has he lived there at Magangue, and surely he must know something of that country to the south."

"We shall leave here with as little delay as possible," observed Frank. "I have sent our purser, Manuel, to comply with the custom duties, and secure us a few supplies. When he comes aboard again we expect to start."

"It is just as well," remarked the other, significantly, and seeming to be relieved. "Because, there is an uneasy feeling in Barranquila just at present. Agents of the revolutionary junta have been here. They are very active. And from secret sources I happen to know that they are aware of the strange cargo you are bringing with you."

"You must mean our aeroplane, Señor?" remarked Frank, quickly.

"Si, Señor Bird," the other continued, nodding his head. "It has become known that the two young Americanos are of the new and wonderful aeronauts, with whom nothing is impossible. And if you remained here any length of time I fear lest even my government might seek to find some excuse for appropriating your little airship. The talk is all in that direction now. Colombia is ripe to take a forward step, and have an aviation corps."

"Well," said Frank, "under the circumstances we would seriously object to having our monoplane confiscated now, because upon it we depend wholly in our search. But I thought you were perhaps about to warn us to look out for these revolutionists while passing up the river."