"Well, Farley Munson, so it"s you, is it?" asked Mr. Jenks, as he surveyed the prisoner.
"Do you know him?" asked Tom, in some surprise.
"He was in with the diamond makers," said Mr. Jenks. "He was one of those who took me to the secret cave. But it will be the last time he ever goes there. How high up are we, Tom?"
"About two miles. Why?"
"I guess that will be far enough to let him fall," went on the diamond seeker. "Come on, Mr. Damon, help me throw him overboard!"
"You--you"re not going to throw me over--with the airship two miles high; are you?" gasped the man.
"Will you tell us what we want to know, if we don"t?" asked Mr. Jenks.
"What do you want to know?"
"How you got aboard, and what your object was in coming."
"That"s easy enough. I had been hanging around the shed for several days, watching a chance to get in. Finally I saw it, when that colored man went to feed his mule, and I slipped in, and hid in the airship. The stores were all in then, and I stowed myself away among the boxes. I had food and water, so I didn"t touch any of yours," and he looked at Mr.
Damon, who seemed much relieved.
"And what was your object?" demanded Mr. Jenks.
"I wanted to prevent you from going to Phantom Mountain."
"How?"
"By destroying the airship if need be. But I hoped to accomplish it by other means. I would have stopped at nothing, though, to prevent you.
You must keep away from there!"
"And if we refuse?" asked Tom.
"Then you"ll have to take what comes!"
"But not from you!" exclaimed Mr. Jenks. "We"re going to get rid of you."
The man"s face showed the alarm he felt.
"Oh, don"t worry," said Mr. Jenks, quickly, "we"re not going to toss you overboard. We"re not as desperate as your crowd. But we"re going to get rid of you, and then go on before you can send any word to your confederates. We"ll put you off in the most lonesome spot we can find, and I guess you"ll be some time getting back to civilization. By that time we"ll have the secret of the diamonds."
"You never will!" declared the man, firmly. And he would say nothing more, though by threats and promises Mr. Jenks tried to get from him something about the men in with him, and where the cave of the diamonds was located.
Heavily bound with ropes the man was locked in a small closet, to be kept there until a favorable spot was reached for letting him go. Mr.
Jenks" plan, of dropping him down in some place where he would have difficulty in sending on word to his confederates was considered a good one.
Three days later, in crossing over a lonely region, near the Nebraska National Forest, Farley Munson, which was one of the names the spy went by, was dropped off the airship, when it was sent down to within a few feet of the earth.
"It will take you some time to get to a telegraph office," said Mr.
Jenks, as a package of food, and a flask of water was tossed down to the stowaway. He shook his fist at those in the airship, and shouted after them:
"You"ll never discover the secret of Phantom Mountain!"
"Yes, we will," declared Tom, as he sent the Red Cloud high into the air again.
CHAPTER XI--A WEARY SEARCH
During the three days when the stowaway had been kept a prisoner, the Red Cloud had made good time on her western trip. She was now about two hundred and fifty miles from Leadville, Colorado, and Tom knew he could accomplish that distance in a short time. It was necessary, therefore, since they were so close to the place where the real search would begin, to make some more definite plans.
"We will need to replenish our supply of gasoline," said Tom, shortly after the stowaway had been dropped, and when the young inventor had made a general inspection of the airship.
"Is it all gone?" inquired Mr. Damon.
"Not all, but we will soon be in the wildest part of the Rocky Mountains, and gasoline is difficult to procure there. So I want to fill all our reserve tanks. But I would rather do that before we get far into Colorado."
"Why?" inquired Mr. Parker.
"Because airships are not so common but what the appearance of one attracts attention. Ours is sure to be talked about, and commented on.
In that case, in spite of our precaution in putting Munson off in this lonely place, word of the Red Cloud being in the vicinity of Leadville may reach the diamond makers, and put them on their guard. We want to take them unawares if we can."
"That"s so," agreed Mr. Jenks. "We had better get our gasoline at the first stopping place, then, and proceed with our search. Our first object ought to be to look for the landmark--the head of stone. Then we can begin to prospect about a bit."
"My idea, exactly," declared Tom. "Well, then, I"ll go down at the first place we cross, where we can get gasoline, and then we"ll be in a position to hover in the air for a long time, without descending."
The airship kept on her way, traveling slowly the remainder of that day, and at dusk, when there was less chance of big crowds seeing them, the Red Cloud was sent down on the outskirts of a large village. Tom and Mr.
Damon went to a supply store, and arranged to have a sufficient quant.i.ty of the gasoline taken out to the airship. It was delivered after dark, and little talk was occasioned by the few who were aware of the presence of the craft. Then, once more, they went aloft, and Tom sent several wireless messages to Shopton, including one to Miss Nestor.
"Please tell my wife that I am well, and that I have a good appet.i.te,"
said Mr. Damon.
Mr. Parker also sent a message to a scientific friend of his, stating that he made some observations among the mountains, of the region in which the airship then was, and that the indications were that a great landslide would soon take place.
"That won"t worry us," spoke Tom, "for we"ll be far above it."
"I hope we will be near enough to enable me to observe it, and make some scientific notes," came from Mr. Parker. "I am positive that one of these mountain peaks that we saw to-day will disappear in a landslide within a few days. I have an instrument somewhat like the one that records earthquakes, and it has been acting strangely of late."
Tom wondered what enjoyment Mr. Parker got out of life, when he was always looking for some calamity to happen, but the scientist seemed to take as much pleasure in his gloomy forebodings now, as he had on Earthquake Island.
They reached the vicinity of Leadville the next day, but took care to keep high above the city, so that the airship could not be observed.
With powerful gla.s.ses they examined the mountainous country, looking for the little settlement of Indian Ridge.
"There it is!" exclaimed Mr. Jenks, just as dusk was settling down. "I can make out the hotel I stopped at. Now we can really begin our search.
The next thing is to find the stone head, and then, I think, I will have my bearings."
"We"ll begin the hunt for that landmark in the morning," said Tom.
High in the air hovered the Red Cloud. At that distance above the earth she must have looked like some great bird, and the adventurers thought it unlikely that any one in the vicinity of Leadville would observe them.