Murder Most Horrid is a Harry Potter fanfic by Useful Oxymoron
In a world where Voldemort was never born, Bellatrix Lestrange works for the Department Of Magical Law Enforcement as a detective. One day she's called to Hogwarts to solve a murder and falls for suspect Hermione Granger.
Murder Most Horrid provides examples of:
- Age-Gap Romance: Bellatrix and Hermione start their relationship while the former in in her 40s and the latter is 18.
- Bigot with a Crush: Bellatrix's attraction to Hermione doesn't stop her from constantly using anti-Muggle slurs. Fortunately, she gets less bigoted as the story progresses.
- Drugs Are Bad: In Chapter 8, Hermione gets sent to St Mungo's in order to cure her addiction to insomnia potions.
- Plot-Triggering Death: The story starts when Bellatrix is sent to solve the murder of Peter Pettigrew.