I have to say that I never bought into this theory – that Voldemort made Harry into a Horcrux, accidentally or not. Initially, I did not believe that a horcrux could be made accidentally. I know that we really don’t know how horcruxes are created, but it sounds like it would have to be a deliberate curse, so how could that be accidental? As for Voldemort doing it on purpose, he has tried too many times throughout the first 6 books to kill Harry. I have read theories that say Harry’s corpse would then be the horcrux, but bodies decompose. I definitely don’t believe that this was done purposefully.
However, even though I do not completely buy into the Harry Potter is a horcrux theory, I do now see that the Harry was made into a horcrux accidentally is a plausible theory. What happened in Godric’s Hollow that evening many years ago is a complete mystery and no one before Harry had ever survived the killing curse. What if on that night, Voldemort tried to kill Harry, but, for some reason that we’ll find out in Book 7, the curse bounced off Harry, hit Voldemort, and Voldemort’s soul went into Harry’s body. Maybe then in Goblet of Fire Voldemort was taking back his soul from Harry. Harry would not be a horcrux anymore.
If this is the case, then Dumbledore might have figured this out already, which would explain the”gleam of triump” seen in his eyes at the end of Book 4. He also would not have told Harry because why put him through that when he is not a horcrux anymore.
I have no idea if any of this theory is true or not. I’m not even sure that I buy into it completely, but it’s fun to try to connect the dots in this puzzle and see what theories fit.
