Ravenclaw artifact (Was: Horcrux musings)

[Hagrid]

No: HPFGUIDX 154096

> I was pondering on Horcruxes, and how they would play out.
> So far, we've got:
> #1 The ?Slytherin? Locket - R.A.B.?
> #2 Riddle's Diary - Harry
> #3 The Peverell Ring - Dumbledore/Snape
> #4 ?Helga Hufflepuff's Cup?
> #5 ?Ravenclaw?
> #6 ?Gryffindor?
> #7 Voldemort - has to be Harry, but not neccessarily Harry alone.
> <SNIP>
>  There's nothing to indicate that Harry has to sort out 
> the Horcruxes, and as others have pointed out, it would make for a 
> massive book if he needs to find, and then ...disarm 3 or 
> 4 horcruxes ...
> 
> The ring ...is only identified as having the Peverill coat of arms 
> on it - it's never identified with any of the founders.
> So assuming neither Gryffindor nor Ravenclaw had a family name of 
> Peverell, that would be two artefacts possibly unidentified.
> 

aussie:

Salazar Slytherin made the Chamber of Secrets needing a parsel 
tongue password.

The Headmasters office is behind a Griffen's Statue guarded by a 
password.

Now .... who made the Room of Requirements also guarded by a 
password of sorts? 
Could that be thanks to Ravenclaw? 
And could a relic be hiding there?

I think prior to the release of OOTP, JKR said in an interview, if 
she had the chance to go to anwhere withing Hogwarts, it would be a 
room DD mentioned in GOF ball dance (GOF chap 23 talking to Krum and 
Karakoff ) "I took a wrong turning on the way to the bathroom and 
found myself in a beautifully proportioned room I have never seen 
before, containing a really rather magnificent collection of chamber 
pots.  When I went back to investigate more closely, I discovered 
that the room had vanished."