Cam Jansen and her friend Eric are spending the day at the amusement park. They take Cam's aunt and uncle with them through the scary haunted house. Plastic skeletons hang from the ceiling. A large black form jumps out of the shadows of a dark room. Everyone has a wonderful time until they get hungry and thirsty. When Cam's aunt tries to pay for some snacks, she discovers her wallet is no longer in her purse. Will Cam be able to solve the mystery...

When fifth-grader Cam notices that the prizes for the most difficult game at the school carnival are rapidly disappearing, she uses her amazing photographic memory to investigate

The Hound of the Baskervilles is the tale of an ancient curse suddenly given a terrifying modern application. The grey towers of Baskerville Hall and the wild open country of Dartmoor hold many secrets for Holmes and Watson to unravel. The detective is contemptuous of supernatural manifestations, but the reader will remain perpetually haunted by the hound from the moor.

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, Josh and Ruth Rose, to find the famous writer--before it's too late!

While visiting Dink's uncle in New York City, Dink, Josh, and Ruth Rose help uncover who is responsible for stealing a very valuable painting

What will the Aldens discover on a vacation to a deserted island? Adapted from Gertrude Chandler Warner's story of the same name, this early reader allows children to start reading with a Boxcar Children classic.

The Aldens become involved in a community theater production of "The Wizard of Oz," which is systematically and mysteriously being sabotaged

Cam uses her photographic memory to catch a thief disguised as a ghost

At an old library, the Alden children discover a boy who needs their help and a stranger who is after a valuable object they found in the library

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.