The Hardy brothers try to find out who is behind a rash of automobile thefts that are occurring on Shore Road just outside of Bayport.

Nancy Drew must search for a flight of 99 steps to solve the mystery of a friend’s weird dream. Her search leads her to France, but before she leaves the United States, an unknown person calling himself Monsieur Neuf warns the young sleuth not to pursue her mission.
With her friends Bess and George, Nancy arrives in Paris to join her father who is working on another case: to find out what, or who, is frightening wealth financier Monsieur...

"When Rowland Sinclair, an artist with leftist friends and a free-wheeling lifestyle, is invited to take his yellow Mercedes onto the Maroubra Speedway, renamed the Killer Track for the lives it has claimed, he agrees without caution or reserve. But then people start to die... The body of a journalist covering the race is found in a House of Horrors. An English blueblood with Blackshirt affiliations is killed on the racetrack. And Rowland Sinclair...

Scotland Yard Detective Superintendent Duncan Kincaid and his wife, Detective Inspector Gemma James, have been invited for a relaxing weekend in the tranquil Cotswolds, one of Britain's most beautiful and historic regions, famous for its rolling hills, sheep-strewn green meadows, golden cottages, and timeless villages that retain the spirit of old England. Duncan, Gemma, and their children are guests at Beck House, the country estate belonging to...

A counterfeiting case leads Frank and Joe Hardy into an investigation of an old mill, constructed by the pioneers. The Hardy boys determined to learn the secret to the old mill employ a clever ruse to gain entrance only to find themselves trapped in a subterranean passageway.

Three children vacationing on Pirate Island discover a long-lost family "treasure."

Lincoln Rhyme and Amelia Sachs return to New York City to confront a killer terrorizing couples at their happiest--and most vulnerable. In the early hours of a quiet, weekend morning in Manhattan's Diamond District, a brutal triple murder shocks the city. Lincoln Rhyme and Amelia Sachs quickly take the case. Curiously, the killer has left behind a half-million dollars' worth of gems at the murder scene, a jewelry store on 47th street. As more crimes...

America's Sherlock Holmes in sneakers continues his war on crime in ten more cases, the solutions to which are found in the back of the book.

Encyclopedia Brown, the super sleuth in sneakers, solves ten new mysteries, including "The Case of the Slippery Salamander," "The Case of the Banana Burglar," and "The Case of the Dead Cockroach."