Rumors spread that Tobias Hawthorne's lost son may still be alive, casting doubt on seventeen-year-old Avery's inheritance and changing the rules of the game.

Thomas Lyon discovers a long-unsolved mystery when he investigates a former race horse blacksmith's deathbed confession.

Nine-year-old Nicholas Benedict, an orphan afflicted with an unfortunate nose and with narcolepsy, is sent to a new orphanage where he encounters vicious bullies, selfish adults, strange circumstances, and a mystery that could change his life forever.

In the fading town of Stain'd-by-the-Sea, young apprentice Lemony Snicket has a new case to solve when he and his chaperone are hired to find a missing girl.

Nancy encounters a mysterious saleswoman in a perfume shop and a curious man on the train, then finds herself trying to decipher a strange code.

Hazel Sinnett is a medical student in 19th century Scotland who, after being kicked out because of her gender, works with new attractive acquaintance Jack Currer to procure dead bodies to study, but they soon discover secrets buried in the heart of Edinburgh society.

Dink and his friends unearth the mysterious truth behind the envelopes incorrectly delivered to his house.

Dink Duncan and his two friends investigate the apparent kidnapping of famous mystery author Wallis Wallace. A is for author ... Dink writes to his favorite author, mystery writer Wallis Wallace, and invites him to visit Green Lawn. To Dink's amazement, Wallace says he'll come! But when the big day arrives, Wallace is nowhere to be found. The police think he just missed his plane, but Dink suspects foul play. It's up to Dink and his two best friends,...

Dot and Jabber, mouse detectives, try to solve the mystery of the disappearing insects.