A shot rings out in the middle of the night in a quiet Chicago neighborhood. Patrolman Murphy is directed to an apartment where a man says the shot came from. The apartment is locked and apparently empty. Was there a murder here? And if so, where is the victim?

A fabulously rich gold mine in Mexico is known by the picturesque and mysterious name of The Four Fingers. It originally belonged to an Aztec tribe, and its location is known to one surviving descendant. Surprises, strange and startling, are concealed in every chapter of this completely engrossing detective story. And through it runs the thread of a curious love story.

Fantômas is the first of 32 novels penned from 1911 to 1913 by Marcel Allain and Pierre Souvestre. The title character is a ruthless thief and killer, a bloodthirsty successor to LeBlanc's Arsène Lupin. The first five novels were made into silent film serials. The character and the movies caught the eye of the French Surrealists who admired the primal violence of Fantômas, as well as his portrayal in the films, which are considered landmarks in French Cinema. In Fantômas, the Marquise de Langrune is savagely murdered and Inspector Juve, who is obsessed with capturing Fantômas, arrives to solve the murder.

Fantômas was introduced a few years after Arsène Lupin, another well-known thief. But whereas Lupin draws the line at murder, Fantômas has no such qualms and is shown as a sociopath who enjoys killing in a sadistic fashion. He is totally ruthless, gives no mercy, and is loyal to none, not even his own children. He is a master of disguise, always appearing under an assumed identity, often that of a person whom he has murdered. Fantômas makes use of bizarre and improbable techniques in his crimes, such as plague-infested rats, giant snakes, and rooms that fill with sand...

Bored with his life as a wealthy businessman's only son, Travers Gladwin learns of a plot by a renowned art burglar to rob his house, so rather than thwart the planned burglary, he borrows a police uniform from a friend and decides to confront the robber by posing as an officer. When the burglar arrives at the house, he tries to pass himself off as Travers Gladwin. From there, things only get more complicated, including the arrival of the burglar's girlfriend who believes that her beau is the wealthy man's son. Comical and timely, the book was made into a movie multiple times, each hugely successful.

The Mysteries of Paris (French: Les Mystères de Paris) is a novel by Eugène Sue which was published serially in Journal des débats from June 19, 1842 until October 15, 1843. Les Mystères de Paris singlehandedly increased the circulation of Journal des débats. There has been lots of talk on the origins of the French novel of the 19th century: Stendhal, Balzac, Dumas, Gautier, Sand or Hugo. One often forgets Eugène Sue. Still, The Mysteries of Paris occupies a unique space in the birth of this...

A perfect diamond worth millions is mailed, in a plain package, to a diamond dealer. Then he finds that identical diamonds were delivered to other diamond dealers. Where did the gems come from? Who sent them? And why? (Introduction by Dawn)

It's 1865 in the city of San Francisco. Pretty, young Ellie Fenwick is walking to the market early one morning to surprise her father with some fresh mushrooms. As she passes a gambling house, she hears a gunshot and two young men emerge. One man falls dead on the pavement and the other is Johnny Montgomery, a handsome young man Ellie recognizes from seeing him previously at a dance. Johnny is holding a smoking pistol in his hand. This incident propels the proper young Ellie into a world of prisons and courtrooms as a murder trial unfolds and the fate of Johnny may rest with her testimony...

John Mallathorpe, a wealthy Yorkshire industrialist and land owner dies in an accident, apparently without making a will. His estate goes to his wife and two children and they live the good life for a number of years. However, an old bookseller, whilst clearing some old books passed on from the Mallathorpe estate, finds a copy of Mallathorpe's will inside one of the books, and unfortunately for the family the will bequeaths the whole estate minus a small endowment for the family, to the city authorities...

Jacob Herapath, a wealthy property developer and member of Parliament, is found dead in his office, a revolver at his side and a bullet wound to the head. An allegedly forged Will deepens the mystery. An intriguing puzzle with plenty of twists and turns.

The northern English sea coast provides a compelling backdrop for this genre of writing; a mysterious disappearance, a love interest, and plot twists 'se mijotent' to produce an intriguing read.

Marshall Allerdyke is driving through the night from London to Hull in response to an urgent telegram from his cousin. As he nears Hull, a beautiful woman stops his car to ask for directions to Scotland. Odd time to be traveling so far and in such a hurry, but Allerdyke's mind is elsewhere. When he finally arrives in Hull, he finds his cousin dead in his hotel room and a valuable consignment of jewels missing. Allerdyke's only clue rests with that woman hurrying off to Scotland.

A group of guests, at an exclusive luxury hotel in Hampshire, are the witnesses of an illustration of occult powers, demonstrated by “the Mystery”, as Mrs. Jefferson named the beautiful stranger who one day appeared in the Turkish Baths of the hotel. The events that follow lead Mrs. Jefferson to question the wisdom of her interest in the occult.

Peculiar happenings aboard the schooner Helen B. Jackson when one night during a storm, the small crew found themselves diminished by one. Somebody had gone overboard, and it was surmised that it was one of the twin Benton brothers. But oddly enough, it seemed that the ‘presence’ of the missing twin continued to exist on board during the following weeks. For example, one extra set of silverware was found to be used after each meal, but nobody claimed to be using them. What then did happen that stormy night, and which brother, if indeed it was one of the brothers, was the man who went overboard?

Lady Dyke disappears mysteriously, and barrister and hobby detective Claude Bruce appears to be one of the last persons to have seen her. A short time later a dead body is found in the river, and Bruce follows the trails. Who is Sydney H. Corbett? Why did the Lady's maid disappear shortly after her Lady? And what business did Lady Dyke have at Sloane Square? If Bruce can find the answer to these questions, he will find the solution to the mystery. (Introduction by Carolin)

The Silent Barrier is a story of mystery and romance with Charles K. Spencer, a well-to-do young American mining engineer, as main character. Drinking his water in a hotel in London one day, he overhears a conversation between two young women, one of whom speaks of going to Switzerland. He decides to play "fairy godfather" and send the comparatively poor, but most amicable other girl there, without her knowing anything of him, under the pretext of furthering her career as a writer for a scientific journal. However, the girl is shadowed on her journey by the mysterious Mr. Mark Bower. Convinced from the first that Bower is a rogue, Mr. Spencer decides to follow them to protect the girl...

A charming mystery story set in the early 1900s which is as much about the townspeople, sleuths and other colorful characters as it is about the murder. Filled with comic antics of Scotland Yard fellows, local police, and residents of the town, keeps the murder ever elusive. The "whodunit" is maintained until the very end and the laughter keeps going even after the mystery is solved.

Another case for Reginald Brett, barrister and hobby detective: David Hume-Frazer is in some trouble. He was the prime suspect in the murder case of his cousin, Alan. Though he was never convicted, suspicion clings to him, and he wishes his name to be cleared before he marries his fiancé, Helen Layton. The case is baffling: Alan was murdered with a Japanese knife on his own grounds, in front of the library windows -- in the same place, where four of his ancestors already died "in their boots"...

What secrets lay within the walls of the house by the lock? What secrets, if any, are held by the man who owns that mysterious house? A body is found in a backwater creek not far from the house by the lock, but what leads Noel Stanton on a quest to determine who the killer might be is more than merely the disappearance of his American friend Harvey Farnham. He has reason to believe that the wealthy and influential owner of the house, Carson Wildred, might somehow be implicated in the coincidental disappearance and murder...

The Masquerader is one of two Katherine Cecil Thurston’s books that appeared on the Publisher’s Weekly best-sellers list in 1905. The Masquerader is part mystery, part romance and part political thriller – all tied up in one neat package. Nature has a way of sometimes making two people nearly indistinguishable in appearance. Such is the premise for this book. John Chilcote, a British politician, and John Loder, a man down on his luck meet by accident one night during one of London’s worst fogs...

Allan Pinkerton (1819-1884), a Scotsman by birth and a barrel-maker by trade, settled in Chicago in its infancy and founded the Pinkertons, the world's first detective agency. Though events associated with the agency after his death have tarnished the name, Pinkerton himself was one of the original human rights advocates. He was a dear friend to John Brown, an advisor to Abraham Lincoln, and 80 years ahead of his time in hiring female detectives. He was also stubborn, irascible, and an egomaniac...