Summer of fifth year: Harry is angry; Hermione ends up alone. Someone finds a locket no one is able to open. Let's make Hermione figure out what charms have been placed on it. Here you go, dear, a very pretty necklace and a mystery. Have fun. Something festers: everything shifts so slightly you wouldn't notice at first: then the pandemonium starts.

And that's how she found herself a new apartment. It was as perfect as can be for five hundred a month in London, never mind that some of her new neighbours were slightly batty, and apparently still living in the Victorian era- that was, if she was going by the state of their clothes and the things she heard at night. At least they weren't mass-murdering psychopaths, eh? Right?