Adler, David A

A fifth-grader uses her photographic memory, her mother, and her friend Eric to find a missing reel of a monster film they go to see.

Ten-year-old Cam, possessor of a photographic memory, and her friend Eric investigate what seems to be a brief appearance of U.F.O.s.

Cam Jansen must use her photographic memory to help find a magician's lost bird.

Dozens of riddles featuring witches, vampires, werewolves, ghosts, and other spooky creatures.

When their regular teacher is sick, Andy's fourth-grade class gets a substitute teacher, providing lots of opportunities for Andy and his friends to get in trouble.

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.

Detective Jeffrey Bones hates taking math tests, especially one he has forgotten to study for, so when his test paper goes missing he must make a choice--retake the test and try to do better, or find the missing paper.