Remember that once-beloved children's fantasy by an author from South West England, about a pre-teen orphan boy who is inducted into a hidden magical society?
It was adapted for the big screen and even spawned a stage musical. The work attempted to address progressive social issues, but today it has lost significant favor due to the author's increasingly hard-to-ignore racism, antisemitism, and other prejudices.
I am speaking, of course, of Charles Kingsley's The Water-Babies (1863).