Nicholas Flamel (born 1340) could be almost as good a source of ancient spells lost to the Interdict of Merlin as Slytherin's Monster
From Chapter 77:
A single glance would tell any competent wizard that the Headmaster has laced that corridor with a ridiculous quantity of wards and webs, triggers and tripsigns. And more: there are Charms laid there of ancient power, magical constructs of which I have heard not even rumors, techniques that must have been disgorged from the hoarded lore of Flamel himself.
So Dumbledore's already using some of Flamel's knowledge in his efforts against Voldemort.
The next discussion thread is here.
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 84. The previous thread has passed 500 comments. Comment in the 14th thread until you read chapter 84.
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.
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: