This popped into my head after I saw how Helena Bonham Carter looked in Sweeney Todd, to be honest. It wouldn't go away, so I decided to write it.

It's about Narcissa's wedding day and some events that follow. The wedding will be the only really defined part of the story. Other things will be snippets about Bellatrix's life - one or two of Narcissa's as well, I think. Some Jo hinted at and some not.