1. Mr. Keen, Tracer of Lost Persons 1949 The Case of Murder and the Star of Death

    Mr. Keen, Tracer of Lost Persons 1949 The Case of Murder and the Star of Death

    42
  2. Mr. Keen, Tracer of Lost Persons 1946-The Case of the Glamorous Widow

    Mr. Keen, Tracer of Lost Persons 1946-The Case of the Glamorous Widow

    37
  3. Mr. Keen, Tracer of Lost Persons 1945-The Strange Case of Charley Lorimer

    Mr. Keen, Tracer of Lost Persons 1945-The Strange Case of Charley Lorimer

    38
  4. Mr. Keen, Tracer of Lost Persons 1950 The Case of the Rushville Murder

    Mr. Keen, Tracer of Lost Persons 1950 The Case of the Rushville Murder

    44
  5. Mr. Keen, Tracer of Lost Persons 1949 The Case of Murder and the Bloodstained Necklace

    Mr. Keen, Tracer of Lost Persons 1949 The Case of Murder and the Bloodstained Necklace

    40
  6. Mr. Keen, Tracer of Lost Persons 1950 The Bride and Groom Murder Case

    Mr. Keen, Tracer of Lost Persons 1950 The Bride and Groom Murder Case

    45
  7. Mr. Keen, Tracer of Lost Persons 1950 The Case of the Melody of Murder

    Mr. Keen, Tracer of Lost Persons 1950 The Case of the Melody of Murder

    38
  8. Mr. Keen, Tracer of Lost Persons 1944-The Case of Murder in the Air

    Mr. Keen, Tracer of Lost Persons 1944-The Case of Murder in the Air

    2
    0
    39
  9. Mr. Keen, Tracer of Lost Persons 1944-The Nightmare Murder Case

    Mr. Keen, Tracer of Lost Persons 1944-The Nightmare Murder Case

    23
  10. Mr. Keen, Tracer of Lost Persons 1944-The Case of the Missing Witness

    Mr. Keen, Tracer of Lost Persons 1944-The Case of the Missing Witness

    49
  11. Mr. Keen, Tracer of Lost Persons 1944-The Case of the Strange Display

    Mr. Keen, Tracer of Lost Persons 1944-The Case of the Strange Display

    27
  12. Mr. Keen, Tracer of Lost Persons 1950 The Case of Murder and the Jewel Thief

    Mr. Keen, Tracer of Lost Persons 1950 The Case of Murder and the Jewel Thief

    65
  13. Mr. Keen, Tracer of Lost Persons 1944-The Case of the Frightened Child

    Mr. Keen, Tracer of Lost Persons 1944-The Case of the Frightened Child

    54
  14. Mr. Keen, Tracer of Lost Persons 1950 The Country Club Murder Case

    Mr. Keen, Tracer of Lost Persons 1950 The Country Club Murder Case

    16
  15. Mr. Keen, Tracer of Lost Persons 1950 The Case of the Two-Faced Murderer

    Mr. Keen, Tracer of Lost Persons 1950 The Case of the Two-Faced Murderer

    18
  16. Mr. Keen, Tracer of Lost Persons 1950 The Case of the Woman Who Married a Murderer

    Mr. Keen, Tracer of Lost Persons 1950 The Case of the Woman Who Married a Murderer

    19
  17. Mr. Keen, Tracer of Lost Persons 1951 The Case of Murder and the Strange Woman

    Mr. Keen, Tracer of Lost Persons 1951 The Case of Murder and the Strange Woman

    27
  18. Mr. Keen, Tracer of Lost Persons 1950 The Telephone Book Murder Case

    Mr. Keen, Tracer of Lost Persons 1950 The Telephone Book Murder Case

    24
  19. Mr. Keen, Tracer of Lost Persons 1951 The Airport Murder Case

    Mr. Keen, Tracer of Lost Persons 1951 The Airport Murder Case

    25
  20. Mr. Keen, Tracer of Lost Persons 1950 The Skull and Crossbones Murder Case

    Mr. Keen, Tracer of Lost Persons 1950 The Skull and Crossbones Murder Case

    31
  21. Mr. Keen, Tracer of Lost Persons 1950 The Quicksand Murder Case

    Mr. Keen, Tracer of Lost Persons 1950 The Quicksand Murder Case

    22
  22. Mr. Keen, Tracer of Lost Persons 1950 The Innocent Flirtation Murder Case

    Mr. Keen, Tracer of Lost Persons 1950 The Innocent Flirtation Murder Case

    44
  23. Mr. Keen, Tracer of Lost Persons 1950 The Eccentric Millionaire Murder Case

    Mr. Keen, Tracer of Lost Persons 1950 The Eccentric Millionaire Murder Case

    31
  24. Mr. Keen, Tracer of Lost Persons 1952 The Silver Candlestick Murder Case

    Mr. Keen, Tracer of Lost Persons 1952 The Silver Candlestick Murder Case

    38
  25. Mr. Keen, Tracer of Lost Persons 1952 The Rented Cottage Murder Case

    Mr. Keen, Tracer of Lost Persons 1952 The Rented Cottage Murder Case

    43