[Transcriber's note: Extensive research found no evidence that the U.S. copyright on this publication was renewed.] I. A COTTAGE AT KNOB HILL II. HELPING A STRANGER III. A QUEER OLD MAN IV. INSIDE INFORMATION V. A NIGHT VISITOR VI. THE ATTIC DOOR VII. PENNY'S DISCOVERY VIII. THE TOY LANTERN CLUE IX. HERMAN CROCKER'S VISIT X. SEARCHING THE LOFT XI. AID FROM MICHAEL XII. THE MATRON'S STORY XIII. A BOLT OF CLOTH XIV. A CONVERSATION OVERHEARD XV. THE MISSING LETTERS XVI. A LOST HANDKERCHIEF XVII. A NEW CLUE XVIII. INSIDE THE GABLED HOUSE XIX. MICHAEL'S ADMISSION XX. ALIAS JAY KLINE…
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