La série Trixie Belden, de Julie Tatham/Julie Campbell, compte 39 livres. Parmi eux figurent The Secret of the Mansion, The Red Trailer Mystery et The Gatehouse Mystery.
The Secret of the Mansion
1948
The Red Trailer Mystery
1950
The Gatehouse Mystery
1951
The Mysterious Visitor
1954
The Mystery Off Glen Road
1956
The Mystery in Arizona
1958
The Mysterious Code
1961
The Black Jacket Mystery
1961
The Happy Valley Mystery
1962
The Marshland Mystery
1962
The Mystery at Bob-White Cave
1963
The Mystery of the Blinking Eye
1963
The Mystery on Cobbett's Island
1964
The Mystery of the Emeralds
1965
The Mystery on the Mississippi
1965
The Mystery of the Phantom Grasshopper
1970
The Mystery of The Missing Heiress
1970
The Mystery of the Uninvited Guest
1977
The Secret Of The Unseen Treasure
1977
The Mystery Off Old Telegraph Road
1978
The Mystery of the Castaway Children
1978
The Mystery at Mead's Mountain
1978
The Mystery of the Queen's Necklace
1979
The Mystery at Saratoga
1979
The Sasquatch Mystery
1979
The Mystery of the Headless Horseman
1979
The Mystery of the Ghostly Galleon
1979
The Hudson River Mystery
1979
The Mystery of the Velvet Gown
1980
The Mystery of the Midnight Marauder
1980
The Mystery at Maypenny's
1980
The Mystery of Whispering Witch
1980
The Mystery Of The Vanishing Victim
1980
The Mystery Of The Missing Millionaire
1980
The Mystery of the Memorial Day Fire
1984
The Mystery of the Antique Doll
1984
The Pet Show Mystery
1985
The Indian Burial Ground Mystery
1985
The Mystery of the Galloping Ghost
1986