Which reminds me - now that Harry has mastered partial Transfiguration, couldn't he just start transfiguring stuff out of bubbles of air, thus making such stuff safe for any use short of injecting them in your arteries?
Harry already tried this in Ch. 28, failed, and concluded that it wasn't possible to Transfigure things out of moving molecules. It's safe to assume that he tried it again after (1) figuring out partial Transfiguration and (2) asking McGonagall, and found that it was still impossible; otherwise he wouldn't have bothered touching his wand to the metal stairs to get his mirror.
- This thread has run its course. You will find newer threads in the discussion section.
Another discussion thread - the fourth - has reached the (arbitrary?) 500 comments threshold, so it's time for a new thread for Eliezer Yudkowsky's widely-praised Harry Potter fanfic.
Most of the paratext and fan-made resources are listed on Mr. LessWrong's author page. There is also AdeleneDawner's collection of most of the previously-published Author's Notes.
Older threads: one, two, three, four. By tag.
Newer threads are in the Discussion section, starting from Part 6.
Spoiler policy as suggested by Unnamed and approved by Eliezer, me, and at least three other upmodders:
It would also be quite sensible and welcome to continue the practice of declaring at the top of your post which chapters you are about to discuss, especially for newly-published ones, so that people who haven't yet seen them can stop reading in time.