Cover of The unknown seven

The unknown seven

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  • 5 hours to read
  • 29 chapters

"The unknown seven" by Herman Landon is a detective novel written in the early 20th century. It centers on criminologist Kingdon Cole, who is drawn into a shadowy conspiracy tied to a missing man, Malcolm Reeves, an enigmatic scientist named Professor Carmody, and a secret council of seven masked figures. Expect urban intrigue, psychological pressure, and high-stakes cat-and-mouse play set against a clandestine New York backdrop. The opening of the novel finds Kingdon Cole staking out Professor Carmody when a mysterious woman in a limousine—calling herself Miss Brown—whisks him to a hidden suite atop a skyscraper. There, seven masked men try to bribe and coerce Cole into dropping the Reeves case; when he refuses, they plunge him into darkness, warn him via speaking tube, and present the now-insane Reeves as leverage, even threatening a brain operation to break Cole’s will. Cole narrowly escapes an ether-laced “operation” by seizing a knife and overpowering a disguised “surgeon,” after which the masked group abruptly claims they did not harm Reeves and urges Cole to pursue a new lead: Doctor Dickson Latham, a nerve specialist they suspect, based in part on Reeves’s reaction to a staged resemblance. At the start of the next day, Cole visits Latham under an alias to take his measure; the doctor appears genial and competent as the excerpt ends mid-consultation.

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  • New York (N.Y.)
  • Detective and mystery stories
  • Private investigators
  • Secret societies

Read the opening

Chapter I

Standing in the dark doorway of a delicatessen shop, Kingdon Cole gazed, through the fog and drizzle of the October night, at a second-story window across the street. The brim of a slouch hat shaded his eyes and most of his face. His lean figure was draped in a mackintosh that reached almost to his feet. The upward slant of the cigar, clamped between his teeth, hinted at total absorption in what he saw.

The building that claimed his attention was an ordinary three-story structure of murky brick. Flanked by a warehouse on one side and a secondhand clothing store on the other, it presented a sullen and gloomy aspect to the watcher across the street. Yet there was something in the very drabness of the house and the chill atmosphere which hung over it that might have appealed to the imagination of a man like Kingdon Cole.

A man’s head and shoulders were dimly silhouetted against the lighted window shade at which he was looking so fixedly. For half an hour or longer the figure had not stirred. The rigid poise of the head and the stiff set of the shoulders suggested that the man at the window was engaged in a task that occupied his whole mind.

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Contents

Show all 29 chapters
  1. Front Matter
  2. Chapter I
  3. Chapter II
  4. Chapter III
  5. Chapter IV: “Yellow”
  6. Chapter V
  7. Chapter VI
  8. Chapter VII
  9. Chapter VIII
  10. Chapter IX
  11. Chapter X
  12. Chapter XI
  13. Chapter XII
  14. Chapter XIII
  15. Chapter XIV
  16. Chapter XV
  17. Chapter XVI
  18. Chapter XVII
  19. Chapter XVIII
  20. Chapter XIX
  21. Chapter XX
  22. Chapter XXI
  23. Chapter XXII
  24. Chapter XXIII
  25. Chapter XXIV
  26. Chapter XXV
  27. Chapter XXVI
  28. Chapter XXVII
  29. Chapter XXVIII

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About this edition

This free edition of The unknown seven by Herman Landon comes from Project Gutenberg eBook #78010, released 2026-02-22. It is in the public domain in the United States, so you can read it here in full at no cost, on any phone, tablet or computer.

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