Michael Koelsch
Michael Koelsch has written at least 3 books. Their most popular book is The Secret of the Mansion with 15 saves with an average rating of 4.33⭐.
Series
34 primary booksAuthored 0% of series
Trixie Belden
Trixie Belden is a 34-book series with 34 released primary works first released in 1948 with contributions by Julie Campbell and Kathryn Kenny.
Series
4 primary booksAuthored 0% of series
Trixie Belden (deutsch)
Trixie Belden (deutsch) is a 4-book series with 4 released primary works first released in 1948 with contributions by Julie Campbell and Kathryn Kenny.
Series
3 primary booksAuthored 0% of series
Trixie Belden (português)
Trixie Belden (português) is a 3-book series with 3 released primary works first released in 1948 with contributions by Julie Campbell and Kathryn Kenny.
Series
1 primary bookAuthored 0% of series
The Extreme Team
The Extreme Team is a 1-book series first released in 2004 with contributions by Matt Christopher and Stephanie True Peters.
