Missing Horcrux = Ravenclaw's

[rachaelmcadams]

No: HPFGUIDX 136434

So, building on Dumbledore's theory that Voldemort wanted to make a 
horcrux out of something from each of Hogwarts' founders, I think the 
horcrux that we don't know is from Ravenclaw.

Alright, just to go over the horcruxes (though I'm pretty sure 
everyone here know them), they are:

1)the diary
2)the ring
3)Slytherin's locket (which was likely found at Grimmauld Place)
4)Hufflepuff's cup
5)Something of Ravenclaw's or Gryffindor's
*note: these 5 were made into horcruxes before Voldemort tries to 
kill Harry
6) Nagini (she was made into a horcrux when he killed Frank Bryce)

As well, Dumbledore says that Voldemort was planning on making his 
last horcrux when he killed Harry, but since he failed, he was unable 
to do so. We also know that the Potters were in Godric's Hollow at 
that time.

So, my theory is that at that time, Voldemort had already had three 
of his four "Hogwarts founder" horcruxes made (Slytherin, Hufflepuff, 
and Ravenclaw) and was anticipating making his last one (Gryffindor) 
with something from Godric's Hollow.  I'm definitely not saying that 
I think Harry is an heir of Gryffindor or anything, I just think he 
must have thought it would powerful to make his Gryffindor horcrux at 
the village Gryffindor lived in (or at least the village named after 
him).

But since the curse backfired, he couldn't make his last horcrux 
then, and he finally settled for making Nagini his last one years 
later.

So I definitely think that the fifth horcrux is something of 
Ravenclaw's, which goes along with something JKR said which was along 
the lines of "Ravenclaw will have it's day in the next book".

Rachael
who thinks that one of the horcruxes is hidden in the Room of 
Requirement and can be found when you're desperately looking for a 
place to hide something.