Hi, have you tried goggling it? I get all kinds of links, not sure which are are good so you‘d have to try. Maybe start here for some tips: https://www.thoughtco.com/using-harry-potter-to-learn-german-4070859 … I also see German versions of the books on the intl. Amazons, like here:
If anyone knows where to get this, please leave a comment on this post?