Potterverse. Definitely Potterverse.
“The Queen has spoken.” Pause. “Voldemort’s mark has been decreed to be a slave brand.” Pause. “Anyone so marked may no longer be considered a free man or woman.” Pause. “Same with their families.”
Presumably said to one of these gotta-save-them-all Dumbledores by some soldier. The premise is that the UK’s ruling monarch is also a ruler of the magicals. Logical, but has logic ever mattered to UK wizards?
Edit for more Potterverse:Someone gets off their tush and implements
https://en.wikipedia.org/wiki/Persona_non_grata with magic.
And another…IIRC, Ron Weasley tends towards black/white morality, so if he and Harry were sent out to track down a missing Slytherin, he would likely be very forward about it. Anyway, this Slytherin is hard to pin down as (s)he is constantly moving about. In the end, they succeed and find him/her – inside a driving cab. It comes out that (s)he owns both the vehicle and the company that operates it. (S)he was a Slytherin because (s)he wanted to have a kingdom of his/her own, and owning a company kind of qualifies.
Susan hated Literature. She'd much prefer to read a good book.