In Harry Potter and the Deathly Hallows: Part 2, when Harry and the others are trying to find a horcrux inside Bellatrix's vault, Hermione accidently touches an item and then it starts duplicating, then the elf tells them everything they touched would duplicate itself.

But then there is a moment where everything stops duplicating even tough they are clearly touching the items. Why is that?


  • Which of the 8 Harry Potter films does this happen in?
    – sanpaco
    Nov 9, 2016 at 16:09
  • Deathly hallows part 2. Nov 9, 2016 at 16:11
  • 1
    1. Are you sure they stop duplicating? It's kinda hard to see in that picture. 2. I thought it only happens when you touch the original. But maybe I remember it wrong.
    – Walt
    Nov 9, 2016 at 16:17
  • That's not the whole scene, just a part of it. Could not find a proper gif or image for the question... Nov 9, 2016 at 16:19

2 Answers 2


You can watch that scene here. It looks to me that the items stopped multiplying around Ron and Hermione when they stopped moving and touching things. I guess "touching through their clothes" doesn't count, but it has to be skin contact.

Also, Harry is seen rising on the pile of still multiplying stuff, because he is still touching it (his right hand and, later, his face).

Once our heroes start struggling to get out of the vault, they resume touching things and they, in turn, resume multiplying.


If I may refer to the JK Rolling’s Deathly Hallows book, we may get a better understanding of what happens in the vault. I say this because I am pretty sure JK Rolling wanted the movies to follow the books as close as possible.

In the book, the objects never stop multiplying. If you are touching something, even if it’s fake, it will multiply. The idea is that a thief will be buried alive if he tries to steal something. (In the book, an additional curse that creates heat would also roast you as you get buried.) The only thing that saves Harry, Hermione, Ron and the two goblins in the vault is its door is opened – by a swarm of armed goblins and wizards on the outside. The goblins plan on having their way with the thieves (maybe because they are unaware of the curses on the inside). So, the five are carried out of the vault in a wave of hot metal.

How do you capture that on the silver screen? The answer to that may explain why the plot was modified slightly, if you didn’t want to have loads of extras, many of which needed to be little people. So, the simple modification was that if you stop moving, the treasure stops multiplying.

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