Campbell, Julie

A very well recieved series by Campbell, Julie are the books, featuring tropes. The most popular books are The Mystery of the Midnight Marauder, The Pet Show Mystery, The Indian Burial Ground Mystery, The Happy Valley Mystery, The Secret of the Unseen Treasure, The Marshland Mystery, The Mystery off Old Telegraph Road, The Mystery of the Missing Heiress, The Mystery at Maypenny's, The Mystery of the Antique Doll, The Mystery at Mead's Mountain, The Mystery of the Memorial Day Fire, The Mystery at Bob-White Cave, The Mystery of the Queen's Necklace, The Mystery of the Castaway Children, The Mystery of the Whispering Witch, The Mystery of the Uninvited Ghost, The Mysterious Visitor, The Mystery of the Headless Horseman, The Mystery of the Phantom Grashopper, The Mystery on the Mississippi, The Mystery at Saratoga, The Black Jacket Mystery, The Hudson River Mystery, The Mystery of the Millionaire, The Mystery of the Blinking Eye, The Mystery of the Velvet Gown, The Mystery of the Ghostly Galeon, which was published in 2022.