When lawyer Gabriel John Utterson witnesses the odd behavior of a man named Edward Hyde, who uses cheques signed by Utterson's friend Dr. Henry Jekyll, he decides to investigate the strange and violent man. Utterson soon discovers the horrible and incredible truth in the form of a letter written by Dr. Jekyll and left near the body of the late Mr. Hyde. Author Robert Louis Stevenson is believed to have had a somewhat volatile relationship with...

When someone steals the proceeds of a charity gala aboard a restored riverboat, it's up to Nancy, Bess, and George to find the thief before the clock runs out.

The mysterious death of an eccentric millionaire brings together an unlikely assortment of heirs who must uncover the circumstances of his death before they can claim their inheritance.

When Amy agreed to baby-sit Kendra Edgerton, she had no idea she was stepping into a kidnapping plot. Two men force the girls out of the house and into a cabin in the woods, where they create DVDs to send to the families, in hopes of a large ransom from Kendra's wealthy parents. Using her wits and imagination, Amy stealthily sends clues to the police through the DVDs, but time is working against her: She has one week until her captors decide to

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While visiting his girlfriend Summer in Malibu, Teddy stumbles upon two mysteries involving a blown up whale explosion and a string of beach sand thefts, but his investigation is sidetracked by a rumor that his girlfriend is dating a celebrity, leading him to question their relationship.

Ten brief cases allow the reader to match wits with ten-year-old crime-buster, Encyclopedia Brown, as he locates stolen jewels, retrieves a stuffed tiger, and more. Solutions are included at the back of the book.

Nancy and her friends need more than book smarts to get to the bottom of a literary mystery in this fourth book of the Nancy Drew Diaries, a new take on the classic series. A rash of crimes in a neighboring town a blazing fire at a bookstore, a boat that sinks in the harbor, and a valuable dog's dog-napping are eerily similar to the plots from famous mystery writer Lacey O'Brien's popular books. So who's behind the crimes? Could it be Lacey looking...

Ten brief cases allow the reader to match wits with ten-year-old crime-buster, Encyclopedia Brown, as he investigates such cases as whether a diary of George Washington's mother is authentic, or if a UFO picture supposedly taken by the army is real.

When someone tries to sabotage the maple trees on her friend Franklin's family farm, Truly Lovejoy rallies the Pumpkin Falls Private Eyes to investigate.

A Mystery about Matter: When campers arrive at Camp Dakota, rumors start flying. The Fog Zombie is on the prowl, moaning and creeping through the thick fog that often settles on the lake. At first, the kids don't believe the rumors--until they find mysterious clues leading to the zombie! Can the campers track down the Fog Zombie with their science smarts? Or will it find them first? Look in the back of the book for experiments and more to help you...