Accustomed to helping the high society of Palm Beach cover up its scandals, private investigator Archy McNally agrees to assist a wealthy matron find a missing block of piceless stamps when the case uncovers a shocking secret from his own past.

The debut of Mystery Writers of America Grand Master Agatha Christie and her remarkable Belgian detective, Hercule Poirot 
Invalided home from the Western Front, Arthur Hastings arrives at Styles Court anticipating a relaxing sojourn in the English countryside. It turns out to be anything but. Late one night, Hastings is summoned to the locked bedroom door of Emily Inglethorp, mistress of the manor. A terrible commotion is happening...

Detective Reuben "Diego" Montoya must team up with the prime suspect in a murder case to catch a serial killer who is keeping New Orleans in the grip of fear, an investigation that leads them to an abandoned asylum where unspeakable evil awaits them.

Unparalleled adventure of one Hans Pfaall -- Balloon-hoax -- Mesmeric revelation -- Ms. found in a bottle -- Descent into the maelström -- Von Kempelen and his discovery -- Gold-bug -- Facts in the case of M. Valdemar -- Thousand-and-second tale of Scheherazade -- Murders in the Rue Morgue -- Mystery of Marie Rogêt -- Fall of the House of Usher -- Purloined letter -- Tell-tale heart -- Black cat -- Imp of the perverse -- Premature burial -- Island...

While en route from Syria to Paris, in the middle of a freezing winter's night, the Orient Express is stopped dead in its tracks by a snowdrift. Passengers awake to find the train still stranded and to discover that a wealthy American has been brutally stabbed to death in his private compartment. Incredibly, that compartment is locked from the inside. With no escape into the wintery landscape the killer must still be on board. Fortunately, the brilliant...

The solutions to ten mysteries solved by Leroy "Encyclopedia" Brown are given in a separate section challenging the reader to match wits with the ten-year-old mastermind of Idaville's war on crime.

The town's ten-year-old walking encyclopedia again solves ten neighborhood mysteries. The final solutions to the cases are at the back of the book, giving the reader a chance to compare his skill to that of Encyclopedia Brown.

When radical feminist Mary Lou Goddard hires Sunny to protect her from a stalker, Sunny accepts the case with some reluctance. After all, Goddard detests Rosie, Sunny's bull terrier, canine vacuum, and stakeout companion.

Teenage detectives Frank and Joe Hardy investigate a supposedly haunted house reported to be the hangout of criminals.