Dagmar H. Mueller

Dagmar H. Mueller studied German and sports science in Hamburg. Before devoting herself fully to writing, she worked, among other things, as a ski instructor, music teacher and PR copywriter. She has published more than 100 children's and young adult books, some of which have received awards and been translated into several languages. Her best-known works include the “Chaosschwestern” series, which was also adapted for film. Her first dragon stories for beginning readers appeared in 2009.