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.

Visiting her grandmother in Australia, Livy, ten, is reminded of the promise she made five years before to Bob, a strange, green creature who cannot recall who or what he is.

Publisher Annotation: For as long as Robinson Hart can remember, it?s just been her and Grandpa. He taught her about cars, baseball, and everything else worth knowing. But Grandpa?s memory has been getting bad?so bad that he sometimes can?t even remember Robbie?s name. She?s sure that she?s making things worse by getting in trouble at school, but she can?t resist using her fists when bullies like Alex Carter make fun of her for not having a mom. Now...