After aiding an injured child, Nancy accidentally stumbles upon the mystery of Josiah Crowley's missing will. While several of Crowley's impoverished relatives claim that he had included them in his will, his arrogant relatives, seem to possess the only copy, which leaves them in total possession of the deceased man's fortune. Nancy is intrigued by the situation and begins searching for Crowley's missing antique clock, an object that reportedly contains...

Frank and Joe travel to California where they investigate the leader of a utopian community and his followers to see if they intend to sabotage the oil industry.

The Hardy boys and their father solve a mystery involving inexplicable crashes of highspeed race cars being used to test an experimental turbine motor.

Alex 's son Ali is eager to follow in his father's footsteps as a detective, but when his best friend goes missing, what price will he have to pay to solve the mystery? Ali Cross has always looked up to his father, former detective and FBI agent Alex Cross. While solving some of the nation's most challenging crimes, his father always kept his head and did the right thing. Can Ali have the same strength and resolve? When Ali's best friend Abraham...

It is up to the Thea sisters to investigate when their friend is falsely accused of theft and barred from competing in a figure skating championship in Russia.

Horace Homer Higgins III despises dirt. And the outdoors. And ducks. But when his person, Eleanor, moves to a farm called the Homestead, the anxious Boston Terrier is forced to adapt. As if that isn't enough to strain his nerves, Ellie adopts a perpetually cheerful potbellied pig named Bunwinkle to be his baby sister. Bunwinkle is delighted to be on the farm despite the stuffy demeanor of her new canine brother. She's sure she'll crack his shell eventually--no...

Before Jake’s grandfather died, he was on the trail of a centuries-old mystery. And he has entrusted that mystery to Jake, leaving behind a set of hidden codes, riddles, maps, and other clues that lead Jake and his friends on a scavenger hunt into the heart of Colorado’s wild and rugged Rocky Mountain National Park. Through twists and turns, the mystery unfolds while Jake, Amber, and Wes learn about survival skills, natural history, integrity,...

Charlie Thorne is a genius. Charlie Thorne is a fugitive. Charlie Thorne isn't even thirteen. After saving the world, Charlie is ready to take it easy in the Galapagos Islands. That is, until she's approached by the mysterious Esmeralda Castle, who has a code she knows only Charlie can decipher. In 1835, Charles Darwin diverted his ship's journey so he could spend ten months in South America on a secret solo expedition. When he returned, he carried...

Ali Cross has always looked up to his father, the famous detective Alex Cross. And after helping to solve two big cases, Ali knows he has what it takes to follow in his father's footsteps. Eager to keep solving crimes, Ali and his friends hack into police calls and go to crime scenes to watch the detectives at work-and try to crack the cases themselves. But when Ali witnesses something horrible, he has to grapple with tough questions about what it...