"And what license had you to attempt to play such a broad joke on me?"

"Joking is my delight."

"Is it?"

"Always."

"Good enough; you tried your joke, I will now try mine. I'll teach you to pick up a stranger in the street to make him the victim of your joke. Oh, yes, we will call it a joke, a good joke, but the joke is not played out yet. You have had your fun. I must have mine, and here goes!" Oscar whipped out a club. He leaped forward and down went Girard, and the other detectives also got in and there was a very lively time in that upper room for about three minutes. The thieves did not dare offer any resistance. They took their medicine and yet they were all brave men. They were only too glad under all the circumstances to get off with a good sound clubbing, and they got it. Then Oscar and his forces drew off, leaving the men to think over their discomfiture at their leisure. We say the officers withdrew. They did, all but Oscar. He thought to take a little advantage of his success, and dodged into a room adjoining the one where the remarkable scene we have described occurred. He knew the men were all well done up and would not in their bewilderment be prepared for the latest trick of the detective. Our hero's friends descended the stairs, making a great noise, and they kept addressing themselves to our hero, asking him questions in a loud tone, but he was not present to answer them. The questions were a part of his scheme to mislead the men, and his purpose was to overhear what passed between the men after they supposed that he and his companions had departed. He relied, as stated, on the demoralization of the scoundrels, and his position, as it proved, was well taken. The men did assume that he and his party had departed and they commenced talking, and our hero was at hand to overhear them talk. Girard was the first speaker.

"Great Scott!" he ejaculated, "who was looking for this? We are boys—greenhorns—compared to that fellow and a tale is told."

"Yes, a tale is told," said Thatford. "We thought we had everything dead under cover. We were proceeding in fancied security, but these fellows have been on our track. This is not the scheme of a night. We have met a setback that will keep us poor for six months. We will not dare move until we ascertain just how far they are on to us."

"I knew something was up when we discovered that fellow shadowing Wadleigh. It was a lucky discovery, and our experience to-night, although rough, is a good play out in our favor. We know now just where we stand; that is, we know to a certain extent our danger."

"Not altogether, nor do they know all. Otherwise there would have been a close-in. They are on to us, but have no real points. Yes, Girard, this little experience is a good one for us. All operations must cease until our enemies are removed. We must go back to the old game and do a little dropping out and make the road clear again."

"That is just what we must do. We certainly have some information for our friends."