that I'll let you go. Of course, you'll have to promise not to say anything about the cave."

"We'll promise that," said Owen.

"And you will have to keep the promise."

"Oh, we'll do that, too," replied Martin.

"Glad to see you so willing; but we'll settle the whole matter in the morning. Don't be afraid, I am not going to hurt you. Lie down and try to rest until I come back. The ground is a little hard, it is true, but it is dry; and there is no danger of catching cold."

He extinguished the few smouldering coals in the middle of the cave, where a fire had previously been kept burning to dry the skins. After again admonishing the boys not to move, he took his torch and departed, leaving them in utter darkness.

CHAPTER III.

IN WHICH OWEN AND MARTIN LEARN MORE ABOUT THE WONDERFUL CAVE.

Walter Stayford was not the sole occupant of that mysterious cave; he had a companion with him by the name of Jerry. The two men lived in a hut, about three miles from the cave, and passed for trappers. They were well known to all the neighbors, and were both musicians, and often supplied the music for rural dances and picnics. Jerry especially was sought for, and it was considered a privilege to have the jolly big fiddler on the music stand. Whenever he was to play, a special mention of the fact was found in all the notices which announced the dance itself. On such occasions his big, round face was one perpetual smile, his fiddle seemed fairly to talk, and so much did he add to the pleasure that he received the appellation of "Jolly Jerry." The two trappers spent weeks and months in the cave and accounted for their protracted absence from their home by pretending that they had gone on long hunting expeditions into the central part of the State. Every spring they went south on one of the many flat-boats or rafts, which carried the products of Kentucky to the ports along the southern parts of the Mississippi. There was a third man, who frequently visited the cave, and who was more directly interested in its secret than either Stayford or Jerry. His two friends generally called him "Tom, the Tinker."

As the night gradually wore away, the three men were seated around a dim fire, warmly discussing the fate of the two boys.

"Shoot 'em! shoot 'em," demanded Tom, the Tinker.

"If you two don't do it, I will! They must not leave this cave!"

"Tom, you is drunk or crazy!" said Jerry. "Shoot two boys for a little chink; never! Not for this cave full of gold and whisky!"

"No one can find it out," replied the Tinker. "People will think that they were drowned, that they shot each other, or that something else happened to them."

"I'll do anything but kill," said Stayford; "that I'll never do. I once knew a murderer who was haunted by a ghost day and night. Besides, what good would it do?"

"It'll save this cave and everything in it!" said the Tinker; "besides, those boys are Catholics! I hate them!"

"Tom!" cried Stayford, jumping to his feet, "don't say anything against the Catholics around here, or I'll make you swallow one of these red-hot coals. I'm a Catholic, or I should be one. Yes! I—I am one, and don't you say anything against them!"

Tom was silent.

Stayford looked at him defiantly, and continued, "I told you before, Tom, not to run down the Catholics, and if you do so again you've got to take back your words, or whip Walter Stayford!"

"Darn my buttons!" interposed Jerry. "Here you is fighting again. I'll club both of you until you feel like wild cats under a dead-fall if you keep on fighting. I reckon we'll turn the boys loose, and——"

"Be ruined, robbed, sent to jail!" interrupted Tom.

"If you want to lose every cent you has, Tom, and be hauled off to Louisville and hung, just kill them boys! Just kill them, and you'll have every man in the country on the trail, like so many hounds, and they'll follow us up till we're caught!"

"Yes," chimed in Stayford, "and you'll have these holes full of ghosts."

"And if you'd bury them a thousand miles deep, they'd be found. They'd come up to the top to tell on us somehow, darn if they wouldn't," said Jerry.

"But boys can't keep secrets!" argued Tom.

"I reckon they can, if we do it this here way. Let 'em know that we are on to 'em, and if ever they says one word about this here cave, we'll burn their father's houses, and play thunder in general. I reckon that'll fetch 'em."

"Well, Jerry," said Tom, "it would be pretty hard to kill two boys for such a small thing. I don't like your plans, but you have been as sly as a red fox since we started in the business, and if you haven't lost your senses, I know you will run things all right."

Tom became himself again as soon as he was convinced that his money was safe. His last words on leaving the cave at break of day were: "Run it well, Jerry! run it well!"

"Yes, run it well," repeated Stayford, as the Tinker closed the door and left him alone with Jerry. "We've done all the running. Tom couldn't have done it by himself. You have done the scheming—I helped, and the old miser has made the money; that's the only thing I hate about it."

"And we ain't stored away much," said Jerry.

"No! I am tired of working for the old miser; but I'll stand by you, Jerry. You have always stood by me and helped me, and I'll stand by you."

"I reckon we had better shake on that, Stayford. You is for a fact the bestest friend I ever had. Walter Stayford never went back on nobody."

"I never went back on a friend, Jerry, but I did go back on my Church, and I've been thinking of it ever since I don't know when."

"Don't get chicken-hearted; when you are old and about to kick the bucket, I reckon you can make it all right. You see, foxes don't start to run till they hear the dogs."

"That's the reason the fools are caught—and you want me to do the same with the devil."

"No! Stayford, keep away from him. I never seen him, but they say he's not good company."

Jerry then set to work to prepare breakfast for the boys. He had been his own cook for twenty years, and could get ready a repast on short notice. The breakfast on this occasion consisted of fried rabbit, johnny-cake and rye-coffee.

In the meantime, Stayford took a torch and went in to arouse the boys. He found them sleeping soundly.

"Now, boys," said he, awakening them, "I am going to set you free. But first I want to show you the size of this cave, and then, while you are eating your breakfast, I'll tell you why I have shown it to you. Did you have a good rest?"

"Yes, sir," replied Owen. "Almost as well as if I was at home."

"We agreed to keep awake," said Martin, "and then it seemed to me that I dozed off and you came in and called us immediately."

"Oh, no!" said Stayford. "It has been over four hours since I left you. I was afraid that you would not be able to sleep, because I frightened you so much by my cursing and so on. You see, boys, I was very mad when you told me that you had seen inside of the cave. But it is all right; so don't get scared any more. Now, I'll show you the size of this place. It would take a whole day to see all of it. I only want to show you a few ways I have of getting in and out."

Leading from the interior of the cave to the chamber where the boys had spent the night there were two passages; one was in the center just opposite to the rock door through which Stayford had introduced his frightened prisoners, and the other to the right of this latter entrance. Through this second opening Stayford passed with the two boys. To let them enter the first passage would reveal the secret he wished to conceal from them.

The part of the cave through which the boys were led appeared a little world in itself. Sometimes they were forced to stoop or crawl along, and then they were suddenly ushered into a spacious apartment, whose size was magnified a hundred-fold in