The Sign of the Four
“You know my methods. Apply them.”
Published in 1890, The Sign of the Four is a detective novel written by Arthur Conan Doyle, and marks the second appearance of the legendary detective Sherlock Holmes.
(Disclaimer: This work is in the public domain)
1966 Theft of the Jules Rimet Trophy
1966 Theft of the Jules Rimet Trophy
3-X Murders
A1 Murder
A1 Murder
Adolfo Constanzo
Albert DeSalvo
Albert Fish
American Detective 1934
American Detective 1935
American Detective 1936
American Detective 1937
American Detective 1938
Angus Sinclair
Annecy Shootings
Antonina Makarova
April Tinsley
Aribert Heim
Arlis Perry
Arthur Leigh Allen
Atlanta Lover’s Lane Murders
Atlanta Ripper
Atlas Vampire Case
August Hirt
Aurora Hammer Murders
Baker Street Robbery
Balaclava Killer
Batman Rapist
Beast of Farley Mount
Beast of Jersey
Bedroom Basher
Bela Kiss
Bella in the Wych Elm
Bempton Bunker
Berlin Butcher
Betsy Aardsma
Biggie Smalls
Black Bellamy
Black Christmas
Black Doodler
Black Hole of Calcutta
Black P Stones
Black Sox Scandal
Blackout Ripper
Bode Museum Heist
Boston Museum Heist
Brabant Killers
Bradford Tragedy
Breck Bednar
Brighton Trunk Murders
BTK
BTK Sketches
Call Girl Murders
Caracalla
Carl Peter Værnet
Carl von Cosel
Carmine Galante
Catrine da Costa
Cesare Bonventre
Charles Thurman Sinclair
Charlie Chop-off
Ché Avery
Chicago Rippers
Chino Antrax
Christian Brueckner
Circleville Writer
Clara Phillips
Columbia
Combat 18
Dachau Massacre
Dalton Gang
Daniel Kinahan
Daring Detective 1935
Daring Detective 1936
Daring Detective 1937
Daring Detective 1938
Daring Detective 1939
Daring Detective 1940
Daring Detective 1941
Daring Detective 1942
David McGreavy
David Parker Ray
Death of Stuart Lubbock
Dedrick D. Gobert – Boyz n the Hood 30th Anniversary Case File
Deep Freeze Murder
Diamond Hoax of 1872
Dirlewanger Brigade
Doctor Hyde
Dolores DellaPenna
Dominick Scialo
Dorothy Forstein
Dorothy Scott
Double Detective 1938
Double Detective 1939
Double Detective 1940
Double Detective 1941
Dunblane Massacre
Early Bird Rapist
Ed Gein
Eddie Leonski
Edward England
Elm Guest House
Emyr Owen
Fager Murders
FBI Ten Most Wanted
Flat-Tire Murders
Francis Sweeney
Frederick Abberline
Frederick Deeming
Freeway Phantom
Frog Boys Case
Front Page Detective 1939
Front Page Detective 1940
Front Page Detective 1942
Front Page Detective 1943
Front Page Detective 1944
Front Page Detective 1945
Galindo Mellado Cruz
Gary Glitter
Gaviota Beach Murders
Gemini Twins
George Hodel
George Reeves
Georgi Markov
Getty Kidnapping
Glen Stewart Godwin
Graham Sturley
Gross-Rosen
Hamburg Rubble Murderer
Harold Jones
Harry Strauss
Harvey Glatman
Heriberto Seda
Hermine Braunsteiner
Herta Oberheuser
Heydrich’s Secret Files
Hitler Diaries
Hollywood Killers
Honolulu Strangler
I-70 Killer
Icebox Murders
Inside Detective 1935
Inside Detective 1938
Inside Detective 1939
Inside Detective 1945
Inside Detective 1946
Isdal Woman
Jabez Balfour
Jack Rackham
Jack the Strangler
Jack the Stripper
Jäger Report
Jam Master Jay
Jamal Khashoggi
James Maybrick
Jean Spangler
Jeff Davis 8
Jeffrey Epstein
Jerry Brudos
Jill Dando
Jimmy Moody
Joan Risch
John Cannan
John Leonard Orr
John Wayne Gacy Paintings
José Ismael Mendoza Falcón
Josef Kramer
Josef Mengele
Joseph Bowne Elwell
Joseph Vacher
Joyce McKinney
Judge Roy Bean
Karl Denke
Kaunas Pogrom
Keddie Murders
Kenilworth Pooper
Kevin Roby | Satanic Christ
Kharkov Trial
L.A. Ripper
La Resistencia
Lawrence Kane
Leather Apron
Lemberg Janowska
Lindsay Buziak
Lloyd Avery II
Locusta of Gaul
London Monster
Lonely Hearts Killers
Los Ántrax
Los Zetas
Louis de Zoysa
Louis Le Prince
Lucca Murders
Mad Bomber of New York
Mark Brandon Read
Masked Marvel Murder
Master Detective 1930
Master Detective 1931
Master Detective 1932
Master Detective 1933
Master Detective 1934
Master Detective 1935
Master Detective 1936
Master Detective 1937
Master Detective 1938
Master Detective 1939
Master Detective 1949
Master Detective 1955
Master Detective 1959
Matamoros Kidnapping
Melvin Rees
Mohammed Bijeh
Monster of Florence
Monster of Udine
Monster with 21 Faces
Montague Druitt
Mr. Cruel
Mr. Kipper
Mystery at Wolf’s Nick
Mystery of Room 1046
Narco Pistolas
Nazi Doctors
Neville Heath
Night Caller
NKVD Black Work
Norco Shootout
North Hollywood Shootout
Oakland County Child Killer
Olivier Levasseur
Order of the Solar Temple
Original Night Stalker
Otaku Murderer
Otis Toole
Parkway Slayings
Pat Tate
Pedro López
Pennsylvania Swamp Murders
Peter Hayman
Peter Moore
Petronilo Moreno Flores
Phil Hartman
Phoenix Antrax
Pimlico Mystery
Pinchin Street Torso Murder
Pockmarked Man
Predatory Sparrow
Rainbow Maniac
Real Detective 1928
Real Detective 1929
Real Detective 1930
Real Detective 1931
Real Detective 1932
Real Detective 1933
Real Detective 1934
Real Detective 1935
Real Detective 1939
Red Lipstick Murder
Regency Hotel Shooting
Reservoir Dogs
Rettendon Murders
Richard Lancelyn Green
Rick Marshall Zodiac Killer?
Rikki Neave
Riverside Murder
Robert Fabian
Robert Hansen
Robert Maudsley
Rodney Whitchelo
Rolex Dave
Ronald Clark O’Bryan
Route 40 Killer
Ruth Ellis
Salon Kitty
Saturday Night Strangler
Sawmill Murder
Sawney Bean
Scorpion Unit
Shergar
Shinichiro Azuma
Sigmund Rascher
Silk Road
Sin City Murders
Skid Row Stabber
Somerton Man
SS Corruption Cases
St. Augustine Murders
Startling Detective 1930
Startling Detective 1931
Startling Detective 1932
Startling Detective 1933
Startling Detective 1934
Startling Detective 1935
Startling Detective 1936
Startling Detective 1937
Startling Detective 1938
Startling Detective 1941
Startling Detective 1946
Startling Detective 1953
Stockwell Strangler
Tattingstone Suitcase Murder
Ted Bundy
