David A Adler

Junior sleuth Jeffrey Bones and his grandfather enjoy a day at the amusement park until their tickets to ride the giant roller coaster mysteriously disappear.

To celebrate their 100th day of school, Cam and Eric's class party will have snacks that start with "P"--pretzels, popcorn, pineapple juice, and pizza. But when the pizza disappears from the kitchen, it's up to Cam and her photographic memory to solve this delicious mystery.

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

"Mo is the youngest kid on the Robins football team. The kids on the rival team tease him for being a 'butterfingers' who's too tiny to catch the ball. But Mo's coach has a plan up his sleeve to turn Mo's little size into a big win for the Robins"--

Detective Jeffrey Bones helps a clown who performed at his friend's birthday party to find some lost clothing.

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

The story of how Harry Houdini astounded audiences around the globe as he freed himself from ropes, handcuffs, and prison cells

Using her excellent memory, Cam Jansen, aided by her friend Eric, investigates the disappearance of Mrs. Scott's valuable pearl necklace during a charity brunch.