When she discovers that her loathsome English teacher is being threatened by an unknown blackmailer, Loz gets caught up in the mystery, with consequences both comical and dangerous.
Twelve-year-old Maggie comes to dread biology class because her favorite teacher is insisting that she dissect a worm, an assignment that makes her feel very squeamish and awakens her to the question of animal rights.
Amelia, a young secret agent, investigates some robotic animals, an enchanting music teacher, and a pair of remarkably beautiful twin bakers with a dastardly plot, all while avoiding her nemesis, Trudy Hart.
Young secret agent Amelia investigates three new cases, involving an evil genius who makes dogs howl, a sneaky science teacher who buys too much cereal, and a psychotic criminal picking the pockets of toy shoppers.
Employing scientific methods learned in Mr. Sparks's class, fifth-grader Leon competes in a potato chip tasting contest and takes revenge against Lumpkin the bully.