Carl-Johan Vallgren
Carl-Johan Vallgren has written at least 15 books. Their most popular book is The Merman with 6 saves with an average rating of -⭐.
Authorship percentage indicates primary author status - excluding introductions, forewards and other contributions.
Series
2 primary booksAuthored 100% of series
Danny Katz
Danny Katz is a 2-book series with 2 released primary works first released in 2013 with contributions by Carl-Johan Vallgren.
#1
#2