A fifth-grader with a photographic memory and her friend Eric help solve the mystery of the stolen diamonds.

Dink and his friends investigate why pets, like Mrs. Davis's canary, Mozart, are mysteriously disappearing all over town.

While visiting a recent purchase of Grandfather's, a ghost town in the Rocky Mountains, the Aldens encounter a mystery involving a run-down motel and a woman who may be a ghost.

When a thief takes the box office money at the school play, Cam uses her photographic memory to solve the mystery.

Freddy the pig does some detective work in order to solve the mystery of a missing toy train.

The Aldens are spending spring break on a beach, but they aren't just soaking up the sun. They're protecting an endangered species! Their job is to mark sea turtle nests so the eggs can be moved to a safe place to hatch, but someone is digging up the eggs without permission. Can the Boxcar Children figure out what's going on and help save the sea turtles?

People say nothing interesting happens in the village of Port Elizabeth but, on a visit there, the Boxcar Children find a big mystery at the schoolhouse. Adapted from Gertrude Chandler Warner's story of the same name, this early reader allows children to start reading by themselves with a Boxcar Children classic.

Nate and his dog Sludge are determined to find the recipe for his mother's monster cookies.

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.

On a field trip to the zoo, Cam Jansen uses her photographic memory to help solve what happened to Danny's lunch.