The World's Greatest Unsolved Crimes
The World's Greatest Unsolved Crimes is a book written by Roger Boar and Nigel Blundell which was first published in 1984 by Octopus Books Limited as part of their World's Greatest series. It contains accounts of various unsolved mysteries such as murders, unexplained disappearances and scandals.

List of entries

Part 1: Crimes Without Call
Who Was R.M. Qualtrough? - the case of William Herbert Wallace
Advertisement of Death - the murder of Josephine Backshall
The Green Bicycle Murder - better known as the Green Bicycle Case
The Enigma of Nuremberg - the story of Kaspar Hauser
Sherlock Holmes' Real Case - the trial of Oscar Slater and Arthur Conan Doyle's involvement
Dead Men Cannot Talk - the sinking of the MS Georges Philippar
Disappearing Dorothy - the disappearance of Dorothy Forstein
Mystery at Wolf's Neck - the death of Evelyn Foster
Spring-Heeled Jack, The Demon of London - the sightings of Spring-heeled Jack
The World's Last Airship - the Hindenburg disaster

Part 2: Crimes of Our Time
The Computer as Crook - the computer fraud of Jerry Schneider
A Sadistic Revenge - the disappearance of Dora Bloch in Idi Amin's Uganda
Piracy 20th Century Style - an account of modern-day piracy in the Caribbean
Double Dealing at the Dogs - a greyhound racing scam at White City, London in 1945
A Fatal Flight - the disappearance of two SAETA Airliners over the Andes

Part 3: Crimes of Avarice
Conviction Without a Corpse - the disappearance of Murial McKay
Doctor Death - the trial of John Bodkin Adams
The Nazi's Gold - the widespread theft carried out by the Nazi Party during World War II
The Unpaid Debt - the murder of Arnold Rothstein
The Black Widow - the serial murderer, Belle Gunness
The Wreck of the Chantiloupe - the sinking of the Chantiloupe and the murder of Mrs. James Burke

Part 4: Vanishing Tricks
The Disappearing Parachutist - the aircraft hijacking committed by D. B. Cooper
The Canine Sherlock Holmes - the discovery of the missing FIFA World Cup Trophy by Pickles the dog
The Missing Murderers - the fate of Nazi war criminals who fled after World War II
France's Uncrowned King - Louis XVII of France and the many imposters claiming to be him
The Sinking of the Salem - the staged sinking of the Salem oil tanker for the sake of an insurance fraud
A Peer's Great Gamble - the famous disappearance of Richard Bingham, 7th Earl of Lucan
Suspect Deceased - the disappearance of Linda Sturley
The Disappearance of Goodtime Joe - Joseph Force Crater
Death at the Opera House - the disappearance of Ambrose Small
The Impossible is Possible - the murder of Roy Orsini
A Riddle in Life and a Riddle in Death - the disappearance of Jimmy Hoffa and the surrounding conspiracy theory
The Mysterious Mummy - an ornamental mummy which was discovered to contain a real corpse during the filming of a Six Million Dollar Man episode
The Prairie's Murder Inn - the Bloody Benders, a family of serial killers
Who Did She Bury? - the disappearance of Nels Stenstrom and the strange funeral ceremony conducted in his absence
Acrobats of Death - the murder of Ugo Pavesi by a man described by witnesses as a giant
The Oldest Kidnap Victim? - The discovery of Homo erectus pekinensis and the complete disappearance of the fossils in transit

Part 5: Murder Most Foul
House of Horror - the murder by Timothy Evans of his infant daughter
Poetry, Passion and Prison - the Pimlico Mystery
The Vicar and the Choirmistress - the murder of Eleanor Mills along with her vicar lover and the severing of their vocal folds
Death in Happy Valley - the murder of Josslyn Hay, 22nd Earl of Erroll
Lizzie and the Axe - the trial of Lizzie Borden
The Harry Oakes Affair - the murder of Harry Oakes
Killings in the Congo - the murder of Patrice Lumumba and the death of Dag Hammarskjöld
Streets of Fear - serial killer, Jack the Ripper
Jack the Stripper - serial killer, Jack the Stripper
Death in the Churchyard - the murder of Olive Bennett
The Arm in the Shark Case - the discovery of a severed human arm in the body of a tiger shark and subsequent murder investigation
The Motorway Monster - the murder of Barbara Mayo, a hitchhiker
Death of the Black Dahlia - the murder of Elizabeth Short
The Torso in the Trunk - a gruesome discovery in a trunk at Brighton railway station
Katyn - 1940 - the unattributed Katyn massacre