When the Hardy boys eagerly agree to assist their friend Jack Dodd and his father in locating a family treasure, the two young detectives are unaware of the baffling complications that will arise. The only clue to the long-lost treasure is a cryptic message written by a Pilgrim ancestor. But when Mr. Dodd and Jack are accused of stealing cars and then mysteriously disappear, Frank and Joe are confronted with a triple mystery. Have their friends run...

Embark on a riveting literary journey with Agatha Christie's "The Big Four," a captivating novel that takes the celebrated detective Hercule Poirot beyond the familiar terrain of conventional murder mysteries. In this enthralling tale, Poirot and his steadfast companion, Captain Hastings, are drawn into the mysterious web of a powerful and elusive criminal organization known only as "The Big Four." The story unfolds against the backdrop of an international...

Timber wolves, a Rocky Mountain blizzard, and a mine cave-in are only a few of the perils Frank and Joe Hardy encounter during their search for the principal members of a notorious gang responsible for a payroll robbery. In the old Montana mining camp of Lucky Lode, the young detectives puzzle over a series of mysterious events. A piano-playing ghost haunts the long-abandoned dance hall. Eerie blue lights flash from the hilltop cemetery in the dark...

The brilliant Dupin uses psychological reasoning to deduce the hiding place of a stolen letter.

Police academy-trained former reporter Ali Reynolds is contacted to investigate the grisly murder of a gold-digging divorcee on behalf of a woman accused of the crime. Lynn Martinson is dating the dead woman's ex-husband, and she and her boyfriend Chip Ralston have been charged. Ali is simultaneously drawn to the case of A.J. Sanders, a frightened teen with secrets of his own. He's the first to find the body in the Camp Verde desert when he goes to...

Yu Qing'an lost control for many times due to unknown reasons, and fell into a feud with Xu Youyan, and found that her life experience was in doubt. At the family banquet, Xu Youyan was recognized as an adopted daughter, and there seemed to be a family conspiracy behind it. Song Nuannuan accidentally learned about her life experience, and Shi Jing's father disappeared after leaving a mysterious item. The fate of everyone is intertwined. As Xu Youyan...

"The Secret Adversary," published in 1922, marks a significant milestone in Agatha Christie's early career as her second published novel and the first to introduce the charismatic duo of Tommy and Tuppence Beresford. This work represents a departure from the traditional detective story format of her debut novel, "The Mysterious Affair at Styles," instead embracing elements of the thriller and espionage genres popular in the post-World War I era. Set...

When a wealthy, elderly woman is poisoned, Belgian detective Hercule Poirot seeks the murderer among a large group of friends and relatives.

In San Francisco in 1928, Sam Spade searches for a priceless statuette. He finds himself torn between loyalty to his murdered partner and an opportunity for personal gain.

People of Darkness meant little to Sergeant Jim Chee when he took on an assignment for Mrs. Rosemary Vines. Her husband's property had been vandalized and a box of keepsakes stolen. Why did she call Chee, a Navajo tribal police officer, instead of the New Mexico authorities? When the leaders of a secret peyote cult begin to show up as murder victims, Chee comes closer to the answers and to the solution of a series of crimes triggered by an oil well...