"You Adam Brent! You can't fool me no longer. I know jest how the matter stands; you're alone down thar. Pass up that rifle an' come out, or I'll be down arter you."

Adam, as before, had nothing to say until the outlaw, enraged at his silence, began making preparations to descend into the cave; and then he called out:

"Black Bill, can you hear what I say?"

"Do you hear what I say?" asked the outlaw, in reply. "Come up out o' that."

"Listen to me," said Adam. "We are not going up there——"

"We!" interrupted the outlaw; "thar aint nobody down thar but you. If Dick an' Bob are in the cave, why don't they speak?"

"Their rifles will speak sooner than you care to hear them. We are all ready for you, and the first man who comes down here will be blown in pieces. We've got something that you don't know any thing about."

Adam knew, by the silence which followed, that his words had not been without their effect upon the outlaws. They were cowards at heart, and they dreaded to face an unknown danger. They talked together in a low tone for a few minutes, and then Black Bill began to descend into the cave, his actions indicating that he was thoroughly in earnest this time, and that there was to be no backing out, no matter what perils he might encounter.

"Stop!" shouted Adam, who plainly saw that something was going to happen. He was standing near the fire, holding in his hand one of the spits on which he had intended to cook his supper. He was ready to put it to a different use now, for one end of it was blazing, and he stood within reach of the train of powder. "Stop!" he repeated, in a still louder tone. "I am not going to be captured again, and I give you fair warning that, if you come into this cave, I will blow you up. Don't come a step nearer."

Black Bill was too angry to heed the warning. He growled out a savage reply, and came on down the passage-way, followed by both his companions. It required the exercise of all the courage Adam possessed to stand there and await their approach, but he did it; and when Black Bill was directly over the pile of powder, he threw his burning spit upon the train. There was a quick flash which lighted up the interior of the Old Bear's Hole as bright as noon-day, and a great volume of smoke arose and filled the cavern. For an instant there was silence in the cave; then a frightful yell rang through the passage-way, followed by a volley of oaths, and threats of vengeance that made Adam's blood run cold. He had all the while been aware that the powder was not sufficient in quantity to do the outlaws any great damage. He had hoped that it would frighten them, but it had a directly opposite effect. They were almost beside themselves with rage now, especially Black Bill, who had suffered more severely than either of his companions. When he came into the cave he carried his knife in his hand, and was in just the humor to use it upon something.