"They were the hundred biggest gangsters in America. They were the brains of everything vicious in American society. There is not a man there whom we have not been after for years, but we just couldn't pin anything on them. Their death in one night gives the decent people in our country a new lease on life. We can go ahead now and get the little fellows. But, tell me, Mr. Willowby, how did it happen?" "I told you. They had a meeting and the rats came. You know there was a rat racket which no one thoroughly understood. Anyway, the rats came--and killed them. No one can tell exactly what did happen, because everyone who was there was killed. That is all. I am sorry that it happened in my office--but I thought I was doing the man a favor to loan him the place for the meeting." * * * * * That night Crawford and Willowby were talking things over. In rushed Rastell and Wilson, brushing the indignant butler aside. "We have heard a thousand rumors," began Rastell, "and read as many foolish statements in the papers about the rat tragedy, and we just couldn't wait a minute longer. You just have to tell us what happened. We are not going to leave you till you do." "You tell them, Crawford," whispered Willowby. "Whenever I talk about it, my voice becomes squeaky." "It happened this way," explained Crawford. "After you started to work, Mr. Willowby decided to go over and study the story of the Piper right in the town of Hamelin. We went there and there was no doubt that the town people really believed that it really happened. They told us all about it, and the more we listened and paid them, the more they told. They gave us the very tune the Piper played to make the rats follow him. It was a simple little thing, and we made some phonograph records of it. It seems that when the rats hear that tune, they want to get as close as they can to the source of the music. Then one old man--he gave us some additional bars which he claimed drove the rats frantic for blood, and we made a record of that also. "Afterwards we came back to America and went up into Pike County. Not so many rats there but enough to experiment with. We tried the short tune and the long tune and they worked on the American rats just like they did on the Hamelin ones. We put two and two together and decided that the rat racketeers in New York were using this method of attracting rats. Just put a repeating phonograph in a building and start it playing, and then the rats would come and eat everything to pieces. Of course, we did not know the psychology of it, but I suppose it has something to do with the effect of musical vibrations on the rat's nervous system.