“Condition two is that I’m pledging to take as an enemy whoever actually did kill Narcissa, as determined to the honest best of my ability as a rationalist. Whether that’s Dumbledore, or someone else. …
… Condition five is that if whoever killed Narcissa was tricked somehow into doing it, then my enemy is whoever tricked them, not the person who was tricked.”
And yes, I think it would be somewhat difficult on Harry’s part to explain himself to the people who care about the person who did it; but in this case, Hermione of all people would probably understand why Harry took as his enemy someone who—again—burned an innocent woman to death. I don’t think that’s the kind of thing Hermione would be willing to let slide just because the person is a friend’s aunt.
And yes, I think it would be somewhat difficult on Harry’s part to explain himself to the people who care about the person who did it; but in this case, Hermione of all people would probably understand why Harry took as his enemy someone who—again—burned an innocent woman to death. I don’t think that’s the kind of thing Hermione would be willing to let slide just because the person is a friend’s aunt.
Ah, very well then. Thank you for clearing that up.