While Harry was inside the soundproofing magic...
Dumbledore and Douglas discussed the connection between Harry and the story "Slytherin's Half-Blood Prince."
Douglas followed Dumbledore's line of thought:
"So Harry might correspond to the mistress who sealed the severed limb inside her?"
Dumbledore slowly chewed the sweet in his mouth, then said unhurriedly:
"Douglas, I've consulted a great deal of material lately and found a form of Dark Magic that could correspond to this situation, an ancient form of the most evil Dark Magic that very few people have attempted..."
At this point, Dumbledore suddenly looked at Douglas.
Douglas froze. Go on. Why are you looking at me? You're making it sound as though I should know.
"I see. What sort of Dark Magic could split off a soul?"
Dumbledore felt quite pleased at Douglas's question. Questions and answers made for a good conversation; otherwise, how dull it would be to talk dryly all by himself.
"I remember you saying last time that Tom once told you the Diary was proof that he could live forever. Based on immortality and the splitting of souls, I found a form of Dark Magic-Horcruxes.
"To make a Horcrux, a wizard has to fracture and shatter their soul through evil acts such as murder, then separate a portion of their soul from their body and seal it in a vessel. Specific spells are then used to complete the final process. That is a Horcrux.
"Because a portion remains undamaged, even the destruction of the body will not cause death. That should be why Tom has remained alive ever since that incident!"
Douglas could hear a trace of sadness in Dumbledore's voice:
"Professor, if this really does correspond to that story, does that mean Voldemort has already split his soul into seven pieces...
"And to destroy