Answer
Many of Karl May's works were adapted for film, theatre, audio dramas and comics. His most famous work, Winnetou, has been adapted for films several times, as well as for a television series. Other works that have been adapted include Der Schatz im Silbersee, Der Sohn des Bärenjägers and Die Fahrt ins Reich der Silbermenschen. May's works have also been adapted for theatre, audio dramas and comics.