"Seeing" the Invisible

[greg_a126]

No: HPFGUIDX 138471

So in SS/PS, we saw what we can presume to be Dumbledore, seeing 
through Harry's Invisiblity cloak.  In CoS, Dumbledore sees through 
Harry's cloak again, immediately identifying where Harry and Ron were 
hiding in Hagrid's cabin.  We don't see much of this again until HBP, 
when Dumbledore identifies the entrance to the cave, the words that 
were written and the location of the boat, all of which from Harry's 
point of view seem to be invisible.

So the question becomes, is this "seeing the invisble" a.) a unique 
trait of Dumbledore's, b.) a trait like a metamorphagus that is 
something inborn to each person (and so therefore something Harry's 
going to have to deal w/o in book 7) or c.) something that Harry can 
learn.

At the absolute best, it seems to me that this is a phenominally rare 
trait.  In GoF, Moody/Crouch says that he can see Harry through the 
cloak not b/c he knew he was there, but b/c of the eye.  Snape's 
never been able to see Harry when he's in his cloak and Karkaroff and 
Madame Maxine were both unable to see him in GoF before the first 
task.

>From both the trip to the cave, and the little we know about 
Dumbledore's trip to the Gaunt house, both of Voldemort's Horcruxes 
were at least partially hidden from sight.  This means two things.  
Number one, Voldemort is likely to be another person who can "see the 
invisible", and 2 Harry's going to need to be able to do the same to 
find the remaining hidden Horcruxes.  But where's he going to learn 
that?

Greg