Spoiler: It’s disgusting.
For years, J.K. Rowling has kept much of the information regarding the creation of horcruxes a secret.
What we do know is that a horcrux is an object that a dark wizard or witch has hidden a fragment of their soul in. The process is fairly shrouded in mystery, however it is well-known that it involves a spell and a terrible act - including the most supreme act of evil - murder.
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Today, Reddit user sirlionel13 offered up the explanation that the final, and most horrible act in the creation of a horcrux, is cannibalism.
The whole thing is pretty in-depth, and actually makes a lot of sense.
J.K. Rowling has not revealed much information about Horcruxes, though in an interview on PotterCast, she told us that her editor threw up when told the exact process.
Though we were promised more information on Horcruxes in the supposedly upcoming encyclopedia, we might find out more when Deathly Hallows is released on Pottermore.
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This Fan Theory Might Finally Explain The Final Step To Making A Horcrux