I don't expect Sirius to show up, since his tale was told to its conclusion. His nemesis was Peter, and Peter is dead.
Uh...
"Gosh," Harry said half a minute later, "you get a seer smashed on six slugs of Scotch and she spills all sorts of secret stuff. I mean, who'd have thought that Sirius Black and Peter Pettigrew were secretly the same person?"
and
The old wizard reached out toward another metal door, from behind which came a endless dead mutter, "I'm not serious, I'm not serious, I'm not serious..." The red-golden phoenix on his shoulder was already screaming urgently, and the old wizard was already wincing, when -
Another cry pierced the corridor, phoenix-like but not the true phoenix's call.
The wizard's head turned, looked at the blazing silver creature on his other shoulder, even as ephemeral and substanceless talons launched the spell-entity into the air.
The false phoenix flew down the corridor.
The old wizard raced off after, legs churning like a spry young man of sixty.
The true phoenix screamed once, twice, and a third time, hovering before the metal door; and then, when it became clear that its master would not return for all its calling, flew reluctantly after.
Second quote: Excellent catch.
The new thread, discussion 13, is here.
This is a new thread to discuss Eliezer Yudkowsky's Harry Potter and the Methods of Rationality and anything related to it. With three chapters recently the previous thread has very quickly reached 1000 comments. The latest chapter as of 25th March 2012 is Ch 80.
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: one, two, three, four, five, six, seven, eight, nine, ten, eleven.
As a reminder, it's often useful to start your comment by indicating which chapter you are commenting on.
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: