I think it's more likely that Quirrell has the Resurrection Stone. When Harry shows him the Deathly Hallows symbol, he cuts their meeting short and hurries off somewhere. In canon, the stone was set into the Gaunt family ring, which Quirrell would have seen and would know the location of (it is implied that HPMOR follows the canon relationship between Tom Riddle and his family: "I have long since resolved my parental issues to my own satisfaction", "my family are long since dead at the Dark Lord's hand", Snape and Moody meeting at Tom Riddle Senior's grave).
New chapter!
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 104.
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.)
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: