But then what wand did Voldemort use to duel James and Lily and to cast Avada Kedavra?
It's not really clear whether Bella knows how Voldemort died. She recognizes Harry from his scar, and it's improbable that she could have been captured so soon after Voldemort's death that she didn't have time to read the newspapers. But she also says:
"My... Lord... I went where you said to await you, but you did not come... I looked for you but I could not find you..."
Which would be an odd thing to say if she knew his body had been found on the floor of Potter's house. Maybe she knew about the horcruxes and other dark magic, and figured Voldemort losing his body would be only an inconvenience?
So either Voldy gave Bella his wand and used a different wand to duel the Potters (which meant he knew something was up and probably planned to die), or she just took the wand from the corpse or stole it from the authorities or something.
Any reasoning from Bella's apparent knowledge should take into account the Dementor-induced censoring of good memories, (e.g., sun, clouds).
Perhaps she can still remember parts of the plans that went wrong without remembering the successful parts.
- 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.