This title Wagner hero blows a mighty horn call & then kills Fafner, who's in the shape of a dragon
He has raised the human boy Siegfried as a foster child, to kill 
Fafner, who ... Alberich warns the dragon that a hero is coming to kill him, and 
offers to... [DOC] [TLE] Siegfried - Richard Wagner - Libretto in English - OperaFolio.com [PAR] The libretto of the opera Siegfried by the composer Richard Wagner in English.