Who rides so late through the night and wind?
The poem is Der Erlkönig by Johann Wolfgang von Goethe. It recounts the conversation between a frightened child and a father during a storm. The child seems to be able to see the Erl King (Erlkönig) that the father dismisses as imaginary. Suddenly the child is attacked by the Erlkönig and is killed.
Listen on Spotify: Erlkönig by Franz Schubert