 | The Case of the Runaway Money | Paperback |
 | The Clue That Flew Away | Paperback |
 | The Secret of Jungle Park | Paperback |
 | Mystery on the Mississippi | |
 | The Case of the Close Encounter | Paperback |
 | The Clue in the Classroom | |
 | The Secret in the Sand Castle | Paperback |
 | The Secret of the Stolen Puppies | Paperback |
 | Trouble in Toyland | Paperback |
 | The Case of the Crooked Contest | |
 | The Case of the Crying Clown | |
 | The Chocolate-Covered Clue | Paperback |
 | The Mystery of the Missing Mummy | |
 | The Secret of the Stolen Clue | |
 | The Secret of the Sunken Treasure | |
 | The Case at Creepy Castle | |
 | The Case of the Disappearing Dinosaur | |
 | The Great Skate Mystery | |
 | The Secret at Sleepaway Camp | |
 | The Show-and-Tell Mystery | |
 | The Weird Science Mystery | |
 | The Big Pig Puzzle | |
 | The Case of the Crazy Collections | |
 | The Case of the Goofy Game Show | |
 | The Clue at Casper Creek | |
 | The Monster Mouse Mystery | |
 | The Super-duper Cookie Caper | |
 | The Case of the Tricky Trickster | |
 | The Case of the Vanishing Video | |
 | The Mystery of the Mixed-Up Mail | |
