How did Dumbledore know about the cave?

[wickywackywoo2001]

No: HPFGUIDX 135213

--- In HPforGrownups at yahoogroups.com, "wapp13" <mandyallen286 at f...> wrote:

> 
> I guess that Dumbledore has been analysing everything he knows about 
> TR for quite some years to try and get hints or clues as to where he 
> might put the horcruxes and in what relics.  It seemed very clear in 
> the book that the cave incident was significant as it was mentioned 
> more than once.  I would assume that Dumbledore therefore made a 
> connection between that and a possible hiding place for a horcrux.  

I like this theory - it not only provides a reason for why Dumbledore
went to the cave, it provides a reason for why the cave was mentioned
in the first place.  If this is true, isn't it possible that all the
other Pensieve flashbacks contain a clue as to what or where the other
Horcruxes are?  We have 6 memories.  The clues might be:

1.  The locket?  The snake?  The Gaunt house as a hiding place? 
2.  The cave.
3.  The ring.
4.  ?
5.  The cup.
6.  The wine?

Maybe that's why Dumbledore congratulated Harry when he asked about
the mouth-organ.  In a way, he realized that each memory had contained
one important clue - he just happened to pick on the wrong one, but he
was right to think that there was SOMETHING that he should focus on. 
I can't see anything in Slughorn's memory, though - no obvious object,
unless it's the gold clock.  (I don't suppose it would be a
pineapple!)  And I don't personally believe that the locket was a
Horcrux, but it is rather prominently brought to our attention, so it
might be the focal point of one of the memories.

Wanda