David A Adler

On Green Day, Cam and her classmates discuss ways to protect the environment, but when money collected for the school's new skylights disappears, Cam uses her photographic memory 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.

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.

The ever-quirky Calvin convinces Danny to help him start a rent-a-pet business when Calvin's Aunt Ruth asks the boys to watch her miniature collie while she is away, but first they will have to find a renter.

Eight-year-old sleuth Cam Jansen uses her photographic memory to discover what happened to a classmate's missing cookie.

Young Detective Jeffrey Bones investigates the disappearance of the plastic dinosaur his grandfather just bought for him in a museum gift shop.

A simple biography of the noted black track star who competed in the 1936 Berlin Olympics.

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

Cam helps her friend Eric when he misplaces his permission slip to go on the school field trip.

When Cam, her father, and friend Eric go to the airport to meet Cam's Aunt Molly, they help her find her missing shoes.