The Red Signal
Short story
Original publication:
The short
story is first published in The Grand Magazine
(UK) in June
1924 (Vol. 45, No. 232).
In the US the short story is first
published in Ellery Queen's Mystery Magazine
in
1947 (Vol. 9, No. 43).
Alternative version:
The short story also exists in an earlier authored version under the title
The Man Who Knew.
However, this version was published much later in John Curran's
Agatha Christie's
Murder in the Making. Stories and Secrets from Her Archive 2011.
In book form, the short story is represented in:
1.
The Hound of
Death and Other Stories 1933 (British short story collection)
2.
The Witness for the Prosecution and Other Stories
1948 (American short story collection)
3. The Agatha Christie Hour
1982 (British short story collection)
4.
The Last Séance. Tales of the Supernatural 2019 (British Edition)
Published in the US the same year:
American Edition.
Publications in Swedish:
1.
Den röda signalen 1982 (In the short story
collection Flickan på tåget
och andra mysterier)