David A. Adler

When Cam Jansen and her friend Eric uncover a mystery while selling fudge door-to-door to raise money for the local library, Cam uses her photographic memory to foil a crime.

Cam Jansen and her photographic memory help her friend's grandfather retrieve his missing bag with an important graduation gift in it.

While visiting Aunt Molly at a fancy downtown hotel, Cam uses her photographic memory to help one of the guests find her stolen luggage and pet cat, and to catch the thief.

Biography of the black woman who escaped from slavery to become famous as a conductor on the Underground Railroad.

A biography of the man who, after escaping slavery, became an orator, writer, and leader in the abolitionist movement in the nineteenth century.

When Andy and his friend Tamika spend the weekend in the city with Tamika's aunt and uncle, he tries hard to follow all the rules of etiquette during outings to a French restaurant, an art museum, and the ballet, while using his detective skills to solve a mystery involving "parachuting" hamsters.

Using her photographic memory Cam Jansen joins Eric in solving the mystery of how some of the school computers were stolen.

While Cam's Aunt Molly is competing in a comedy contest, the expensive plate the winner will receive disappears and Cam and Eric set out to find it before the contest's over.

Supersleuth Cam Jansen solves three mysteries during her class's Sports and Good Nutrition Day.

Cam and her friend Danny help solve the mystery of a stolen pearl necklace when the governor comes to visit their school for the dedication of the new library.