Also:
"Professor McGonagall, Hermione is alive! " Harry Potter raised his voice again. "She's really alive and not an Inferi or anything, and she's still there in the graveyard!"
Isn't the singular "Inferius"?
I think that might have been Harry making a mistake on purpose. At least that's how I interpreted it when I read it.
This is a new thread to discuss Eliezer Yudkowsky’s Harry Potter and the Methods of Rationality and anything related to it. This thread is intended for discussing chapter 116.
There is a site dedicated to the story at hpmor.com, which is now the place to go to find the authors notes and all sorts of other goodies. AdeleneDawner has kept an archive of Author’s Notes. (This goes up to the notes for chapter 76, and is now not updating. The authors notes from chapter 77 onwards are on hpmor.com.)