David A Adler

Cam Jansen and her friends are volunteering at the local senior center talent show. They're having fun entertaining the guests and enjoying treats donated by Ken's Bakeshop. But during the show someone steals the wedding cake from Ken's truck outside. Can Cam use her photographic memory to solve the mystery before the wedding?

Fifth grade sleuth Cam Jansen and her friend Eric combine wits to solve the disappearance of a young French girl.

Fifth-grade sleuth Cam Jansen uses her photographic memory to solve a monkey smuggling mystery at the city zoo.

When eight-year-old sleuth Cam Jansen and her friend Eric go to a birthday party, she uses her photographic memory to solve the puzzle of the dinosaur count.

Jeffrey Bones doesn't like math tests--especially when he forgets to study for them. Now his test is missing. Can he solve the mystery of the missing test and get an Excellent grade?

Jeffrey, Laura, and their friend Bradford the ghost attend a local fair where they investigate some strange goings-on when it comes to winning prizes.

A brief, illustrated, biography of the Baptist minister and civil rights leader whose philosophy and practice of nonviolent civil disobedience helped American blacks win many battles for equal rights.

Chronicles the life, voyages, and discoveries of the intrepid explorer.

Explains in simple terms the concept of supply and demand with examples of how prices are derived and the conditions that contribute to setting the up.

Jennie's dog, who is good at solving mysteries, helps her friend Billy discover the source of the mysterious knocking at his house.