
CHAPTER I THROUGH THE PORTIÈRES
CHAPTER II IDENTIFIED
CHAPTER III THEORIES
CHAPTER IV LOST: A MEMORANDUM
CHAPTER V MORE THEORIES
CHAPTER VI SPECULATION
CHAPTER VII THE KNAVE OF HEARTS
CHAPTER VIII PRO AND CON
CHAPTER IX HALF A SHEET
CHAPTER X BELOW STAIRS
A quiet evening in a grand house turns deadly when a lone intruder silently breaks into the library, only to be felled by a sudden, violent thrust. The scene shifts to Judith, a newlywed lost in the comforts of a romance novel, who discovers the lifeless body and a mysterious locket clutched in her trembling hands. Her shock spirals into panic as she scrambles for safety, her husband’s timely arrival barely keeping her conscious.
Soon after, the polished composure of Detective Ferguson slices through the house’s somber hush. He arrives with a sense of urgency, intent on unraveling the cryptic clues left behind—a torn watch chain, an old locket, and the unsettling mirror reflections that hint at hidden identities. As the investigation begins, the reader is drawn into a tightly wound puzzle of motive, secrets, and the unseen forces that echo through the mansion’s corridors.
Language
en
Duration
~5 hours (337K characters)
Publisher of text edition
Project Gutenberg
Original publisher
United States: A. L. Burt Company, 1921.
Credits
D A Alexander and the Online Distributed Proofreading Team at https://www.pgdp.net (This file was produced from images generously made available by University of California libraries)
Release date
2022-08-04
Rights
Public domain in the USA.

1881–1935
A Washington, D.C., mystery writer with a sharp eye for politics and suspense, she built many of her stories around crime in the city she knew best. Her books, including several detective series titles, still appeal to readers who enjoy classic puzzles and early American crime fiction.
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by Natalie Sumner Lincoln

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by Natalie Sumner Lincoln

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by Natalie Sumner Lincoln

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by Natalie Sumner Lincoln