As interesting as this all is, I have to disappoint everyone -- the Deathly Hallows play no part in the story (as Hallows -- I mean, Harry has his cloak, Dumbledore has his wand), save for one almost ... accidental ... event at the end.
-- Bob
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Then the horns kicked in...
...and my shoes began to squeak.
-- Bob
---------
Then the horns kicked in...
...and my shoes began to squeak.