Nancy Drew 46: the Invisible Intruder

In "The Invisible Intruder," the 46th book in the original Nancy Drew Mystery Stories series, teenage detective Nancy Drew and her loyal friends, Bess and George, find themselves on a seemingly innocent ghost hunting trip. Their adventure quickly turns into a real mystery when they encounter a gang of thieves specializing in stealing valuable shell collections. This chapter book, suitable for ages 4-11, offers a classic whodunit plot with elements of suspense and adventure, showcasing Nancy's intelligence and bravery. Parents will appreciate the emphasis on friendship, problem-solving, and the absence of overly mature themes, typical of the original series before later revisions.