"Mr. Young, I wouldn't believe this strange story of yours, but for your brother's statements and my absolute conviction of your brother's honesty. Both he and his wife tell a staightforward tale of your arrival and departure on that Sunday, which exactly coincides with your own. And there is other corroboration. Now, you are held here, as you know, for other reasons; kidnapping is a crime, and not a slight one, either." "I know it, Mr. Stone, and I'll take my punishment for that, but I'm not guilty of murder. I was possessed to get hold of that pin. I planned clever schemes to get it, but they all went awry, and I became desperate. So, when I found a chance, I took it. I did Miss Clyde no real harm, and I was willing to go halves with her. The day I had two friends take her to my brother's house, he being away for the day, she was in no danger, and at but slight inconvenience. Flossie, as Miss Clyde will tell you herself, was neither rude nor ungracious." "Never mind all that, now, give me the receipt." Young hesitated, but a warning scowl from Stone persuaded him, and with a sigh he handed over what was without doubt the receipt in question. "This is Winston Bannard's property," said the detective, "and you do well to give it up." There was much to be done, but Fleming Stone was unable to resist the temptation to go home at once and work out the cryptogram, if possible, by the aid of the receipt. The paper itself was merely a bill for the engraving on the pin. The price charged was five hundred dollars, and the bill was receipted by J. S. Ferrall, who, Young had said, was the man who did the engraving. There were various words on the bill, both printed and written. Working with feverish intensity, Stone tried them one by one, and when he used the word Ferrall as a keyword, he found he had at last succeeded in his undertaking. Beginning thus: FERRALLFERRALLFERRALL OINVLDLQPSVTHPJRCRNOX he pursued his course by finding F in his top alphabet line. Running downward until he struck O, he noted that was in the cross line beginning with J. J, therefore was the first letter of the message. Next he found E at the top, and traced that line down to I, which gave him E for his second letter. Going on thus, he soon had the full message, which read: "Jewels all between L and M. Seek and ye shall find." This solved the cipher, but was far from being definite information. In a conclave, all agreed that the message was as bewildering as the cipher itself. Mr. Chapin could give no hint as to what was meant. Neither Iris nor Lucille Darrel could imagine what L and M stood for. "Seems like a filing cabinet or card catalogue," suggested Stone, but Iris said her aunt had not owned such a thing. "Well, we'll find them," Stone promised, "having this information, we'll somehow puzzle out the rest." "Look in the dictionary or encyclopedia," put in Fibsy, who was scowling darkly in his efforts to think it out.