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.

No mystery is too great for super-sleuth Cam Jansen and her amazing photographic memory!
Mysteries follow super-sleuth Cam Jansen everywhere she goes...even to the museum. Cam and her class are on a fild trip at the museum when Cam discovers that some bones are missing from a dinosaur skeleton. Can Cam find the bones and catch the thief? 
The Cam Jansen books are perfect for young readers who are making the transition to chapter...

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.

Fifth-grade sleuth Cam Jansen uses her photographic memory to catch a thief during a department store sale.

A fifth-grader with a photographic memory and her friend Eric help solve the mystery of the stolen diamonds. When a jewelry store is robbed, fifth-grader Jennifer Jansen knows she has to act fast. Nicknamed "The Camera" because of her photographic memory, Cam takes special care to remember what each person looks like as they leave the store. The police are baffled when witnesses say they have caught the wrong man. Cam and her friend Eric want to...

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

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

While helping his family make ends meet during the Depression by selling newspapers, a boy meets Babe Ruth.

Fifth-grader Cam uses her photographic memory, with help from her friend Eric and his twin sisters, to solve the mystery of Poochie, a famous canine television star.

Follows Crockett's life from his 1786 birth in Tennessee, through his fame as a storyteller and sharpshooter, to his political career and his death at the Alamo