I'm wondering why Lucius tried to get out of the deal.
If Harry is Voldemort in hiding, he should guess that Harrymort needs Hermione for something (a dark ritual perhaps ?) and shouldn't get out of the deal.
If Harry isn't Voldemort in hiding, then Lucius would get two benefits in one : a payment of the blood debt he has towards House Potter (which could cost him a lot in the game of politics), and a debt from the Boy-Who-Lived, which could grant him a lot in the same game. And lots of money in addition, which is always a good thing to have.
I know that Draco is "his only weakness", but Draco didn't suffer any permanent harm. So he shouldn't be so upset to give up such a political advantage just to send Hermione to Azkaban, which doesn't bring him much. I don't get how a cunning Slytherin like him can discard such an advantage for pure vengeance over an "attempt" which didn't do any real harm.
Edit : I forgot to add : also, trying to get back on his offer on mere technicality in front of the whole Wizengamot damages the honour of House Malfoy, that's an additional cost to his attempt.
I'm wondering why Lucius tried to get out of the deal.
I see it as a status game. Previously Lucius had suggested that Dumbledore take Hermione's place in Azkaban, not because Lucius thought there was much of a chance that Dumbledore accept this offer, but rather to strike at the idea of Dumbledore's supposed heroic altruism.
Now when Lucius named 100,000 galleons as the price to erase the debt, he was trying a similar tactic -- Lucius didn't expect that Harry accept this, Lucius wanted to strike at the idea of his enemies being heroic and altruistic.
But ...
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 81, which should be published later today. The previous thread passed 400 comments as of the time of this writing, so it will pass 500 comments soon after the next chapter is posted, if not before. I suggest refraining from commenting here until chapter 81 is posted; comment in the 12th thread until you read chapter 81. After chapter 81 is posted, I suggest all discussion of previous guesses be kept here, with links to comments in the previous thread.
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.) When posted, chapter 81 should appear here.
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