Bulla’s book is a retelling of Richard Wagner’s opera, The Ring of the Nibelung. Bulla’s retelling is accessible to anyone unfamiliar with the stories, and would be a good preparation for viewing the stage productions.
Purple House Press publishes The Ring and the Fire as a companion to The Borrowed House.
You can read Sara’s review of The Borrowed House here.
You can learn more about The Ring and the Fire at biblioguides.com.