Private investigators
Free to read here, from Project Gutenberg.
The Adventures of Sherlock Holmes
A Study in Scarlet
The murder of Roger Ackroyd
Poirot Investigates
The Murder on the Links
Whose Body? A Lord Peter Wimsey Novel
The Hound of the Baskervilles
The Mysterious Affair at Styles
The unknown seven
The Return of Sherlock Holmes
The Memoirs of Sherlock Holmes
The case-book of Sherlock Holmes
The Missing Will
The Hunter's Lodge Case
The Big Four
The Sign of the Four
Unnatural death
The Secret Adversary
The mystery of the Blue Train
The Return of Sherlock Holmes
The Valley of Fear
His last bow
The Hound of the Baskervilles
Adventures of Sherlock Holmes
La marque des quatre
Hänen viimeinen tervehdyksensä
The sinister mark
The Maltese falcon
The Club of Queer Trades
The Red Triangle: Being Some Further Chronicles of Martin Hewitt, Investigator
Partners in crime
The Adventure of the Bruce-Partington Plans
The Adventure of the Dying Detective
Murder in the Gunroom
The Adventure of the Cardboard Box
The Adventure of the Devil's Foot
Tajemnica Baskerville'ów: dziwne przygody Sherlocka Holmes
Clouds of witness
Un crime étrange
The Adventure of the Red Circle
The Adventure of Wisteria Lodge
The Triumphs of Eugène Valmont
The unpleasantness at the Bellona Club
Chronicles of Martin Hewitt
Lord Peter views the body
Max Carrados
Strong poison
