| # | Book Title | Author | ||
|---|---|---|---|---|
| 7 | Trixie Belden and the Mysterious Code | Kenny, Kathryn | ||
| 8 | Trixie Belden and the Black Jacket Mystery | Kenny, Kathryn | ||
| 9 | Trixie Belden and the Happy Valley Mystery | Kenny, Kathryn | ||
| 10 | Trixie Belden and the Marshland Mystery | Kenny, Kathryn | ||
| 11 | Trixie Belden and the Mystery at Bob-White Cave | Kenny, Kathryn | ||
| 12 | Trixie Belden and the Mystery of the Blinking Eye | Kenny, Kathryn | ||
| 13 | Trixie Belden and the Mystery on Cobbett's Island | Kenny, Kathryn | ||
| 14 | Trixie Belden and the Mystery of the Emeralds | Kenny, Kathryn | ||
| 15 | Trixie Belden and the Mystery on the Mississippi | Kenny, Kathryn | ||
| 16 | Trixie Belden and the Mystery of the Missing Heiress | Kenny, Kathryn | ||
| 17 | Trixie Belden and the Mystery of the Univited Guest | Kenny, Kathryn | ||
| 18 | Trixie Belden and the Mystery of the Phantom Grasshopper | Kenny, Kathryn | ||
| 19 | Trixie Belden and the Secret of the Unseen Treasure | Kenny, Kathryn | ||
| 20 | Trixie Belden and the Mystery Off Old Telegraph Road | Kenny, Kathryn | ||
| 21 | Trixie Belden and the Mystery of the Castaway Children | Kenny, Kathryn | ||
| 22 | Trixie Belden and the Mystery on Mead's Mountain | Kenny, Kathryn | ||
| 23 | Trixie Belden and the Mystery of the Queen's Necklace | Kenny, Kathryn | ||
| 24 | Trixie Belden and the Mystery at Saratoga | Kenny, Kathryn | ||
| 25 | Trixie Belden and the Sasquatch Mystery | Kenny, Kathryn | ||
| 26 | Trixie Belden and the Mystery of the Headless Horseman | Kenny, Kathryn | ||
| 27 | Trixie Belden and the Mystery of the Ghostly Galleon | Kenny, Kathryn | ||
| 28 | Trixie Belden and the Hudson River Mystery | Kenny, Kathryn | ||
| 29 | Trixie Belden and the Mystery of the Velvet Gown | Kenny, Kathryn | ||
| 30 | Trixie Belden and the Mystery of the Midnight Marauder | Kenny, Kathryn | ||
| 31 | Trixie Belden and the Mystery at Maypenny's | Kenny, Kathryn | ||
| 32 | Trixie Belden and the Mystery of the Whispering Witch | Kenny, Kathryn | ||
| 33 | Trixie Belden and the Mystery of the Vanishing Victim | Kenny, Kathryn | ||
| 34 | Trixie Belden and the Mystery of the Missing Millionaire | Kenny, Kathryn | ||
| 35 | Trixie Belden and the Mystery of the Memorial Day Fire | Kenny, Kathryn | ||
| 36 | Trixie Belden and the Mystery of the Antique Doll | Kenny, Kathryn | ||
| 37 | Trixie Belden and the Pet Show Mystery | Kenny, Kathryn | ||
| 38 | Trixie Belden and the Indian Burial Ground Mystery | Kenny, Kathryn | ||
| 39 | Trixie Belden and the Mystery of the Galloping Ghost | Kenny, Kathryn |