Given that:
1) Quirrell believes that bringing back Hermione would be the surest way to prevent Harry from destroying the world. ("Miss Granger was the only one whose worries he truly heeded - with her gone - all checks on the boy's recklessness are removed"; "You truly do care about that girl (...) I do not understand it, but I know the lengths you will go to because of it. You will challenge death itself, for her. Nothing will sway you from that.")
2) Preventing the prophecy from coming true appears to be at least one of Quirrell's top priorities as of the Roles arc (which, for some as-yet unestablished reason, the beginning of the unicorn deaths falls into).
3) Quirrell has been killing unicorns and storing away their flesh.
4) Eliezer has said, as above, "I’ll state outright that at the end of the story Hermione comes back as an alicorn princess".
Semi-serious hypothesis: Quirrell is intending to bring Hermione back using unicorn blood.
Quirrell has been killing unicorns and storing away their flesh.
Then a final gesture from Professor Quirrell ripped a huge chunk out of the unicorn's side, leaving behind ragged edges; the raw meat hovered in the air, then wavered in Vanishment and was gone.
Though unreliable narration is always possible.
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 99, 100, and 101. The previous thread is at nearly 500 comments.
There is now 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.)
The first 5 discussion threads are on the main page under the harry_potter tag. Threads 6 and on (including this one) are in the discussion section using its separate tag system.
Also: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27
Spoiler Warning: this thread is full of spoilers. With few exceptions, spoilers for MOR and canon are fair game to post, without warning or rot13. More specifically: