Gertrude Warner 's Books
A very well recieved series by Gertrude Warner are the books, featuring tropes. The most popular books are Mystery in the Sand, Blue Bay Mystery, The Woodshed Mystery, Mystery Behind the Wall, Bus Station Mystery, Mystery Ranch, Snowbound Mystery, Bicycle Mystery, Tree House Mystery, The Yellow House Mystery, The Boxcar Children Mysteries Box Set, The Boxcar Children, Surprise Island, which was published in 2022.
Mystery in the Sand
Blue Bay Mystery
The Woodshed Mystery
Mystery Behind the Wall
Bus Station Mystery
Mystery Ranch
Snowbound Mystery
Bicycle Mystery
Tree House Mystery
The Yellow House Mystery
The Boxcar Children Mysteries Box Set
The Boxcar Children
Surprise Island