It was requested by someone in a comment a few weeks ago that I lay out a summary of horcruxes thus far, and so here is my feeble attempt to do that. We’re addressing here the questions, What are the known horcruxes, and what are the possibilities for other horcruxes? Voldemort wanted to have his soul split into 7 pieces, so we’d expect 6 horcruxes in addition to the portion of his soul the resides in his own body (p. 503). As we go through this, I’ll add page numbers from Half-Blood Prince as an easy reference for you (I’m using the Scholastic publication for USA).
Let’s start with what we know for sure:
1. Tom Riddle’s diary. This is definitely a horcrux, and we know it has been destroyed (pp. 500-501).
2. Marvolo’s ring. Definitely a horcrux, and destroyed by Dumbledore.
Now, let’s move to objects that are very likely horcruxes:
3. Slytherin’s locket.
4. Hufflepuff’s cup.
Of both of these, Dumbledore said,
I would be prepared to bet – perhaps not my other hand – but a couple of fingers, that they became horcruxes three and four (p. 505).
Since Dumbledore is so certain, there is a very high likelihood that these two are horcruxes, especially with what we know of the journey to the cave to find the locket and the mystery of RAB. There may be some room for Dumbledore to be wrong about the cup, but it’s highly improbable.
That leaves us with two: Here’s where things get sticky. Dumbledore figures that since Voldemort desires objects with a powerful magical history for horcruxes, that he would have searched for relics of the other two houses: Ravenclaw and Gryffindor (p. 505). Dumbledore cannot say whether or not Voldemort ever found a Ravenclaw relic, but he is quite confident that “the only known relic of Gryffindor [the sword] remains safe” (p. 505). This does not, however, lead us to the conclusion that there is no Gryffindor relic about which Dumbledore does not know, for throughout the rest of the conversation, a Gryffindor horcrux remains a possibility (though a Ravenclaw horcrux is more probable). Let’s spend a few words on Dumbledore’s speculations, and then a little time on common speculations of readers.
Dumbledore suspects Nagini as a horcrux. His theory goes this way: Since Voldemort saved horcrux creation for significant deaths, he planned to create his sixth after the murder of Harry, which failed. After he returned to power, he needed a sixth, and so he used the murder of Frank Bryce to create a horcrux from Nagini (p. 506). Given this speculation, Dumbledore’s theory of horcruxes is summarized by Harry in this way:
…the diary’s gone, the ring’s gone. The cup, the locket, and the snake are all intact, and you think there might be a Horcrux that was once Ravenclaw’s or Gryffindor’s? (p. information about domain . 507)
Dumbledore calls this “an admirably succinct and accurate summary.” So if Dumbledore is correct, the last two horcruxes shape up this way:
5. Ravenclaw or Gryffindor Relic.
Dumbledore has been wrong before, and even if his theory is correct, it leaves one horcrux (the Gryffindor or Ravenclaw one) a mystery to us. What are some other options out there in the world of Harry Potter fandom?
Perhaps the most controversial of theories is that in some way, either Harry or Harry’s scar is a horcrux, accidentally. We can go back and forth forever about whether accidental horcruxes are possible or whether Harry or his scar could be a horcrux at all. The bottom line is, we can’t know for sure. Absolute certainty on any theory would be unwise, because JKR is bound to surprise you. But an accidental horcrux creation in Harry or his scar might cause an interesting situation: If Dumbledore’s theory is correct, and Harry’s scar happens to be a horcrux, then there would have been 7 horcruxes created, not just six. Follow me here:
(1) Riddle’s diary, (2) the ring, (3) the locket, (4) the cup, (5) a Ravenclaw or Gryffindor relic, (6) Harry, accidentally and without Voldermort’s knowledge, and (7) Nagini. Of course, with the early destruction of the Riddle diary, there would still be no more than 7 at any given time. But the overall creation of 7 horcruxes and not 6 would throw Harry’s count off by one as he seeks to destroy them. One can imagine the intensity of a final duel between Harry and Voldemort. Harry approaches him, confident that he has destroyed every horcrux, and killing Voldemort will destroy him forever, only to have Voldemort reveal to Harry that he (Harry himself) is a horcrux.
We’re working through the possibilities of Harry as a horcrux in the comments section of my previous post, Is Harry a Horcrux? – join us if you’ve got theories about it!
From this point onward, everything concerning horcruxes is high speculation. The tiara in the Room of Requirement has been suggested by some. Others have posited the Sword of Gryffindor or the Sorting Hat, but these are nigh unto impossible. Dumbledore says the Sword is safe, and the Sorting Hat talks – and we know from the diary what happens when horcruxes come to life in any way. Fawkes has been suggested, but I find this more unlikely than all the rest. The feather from Fawkes in Voldemort’s wand, however…well, perhaps another time.
Feel free to include your ideas, theories, and speculations in the comments.