Mysteries of The Room of Requirement

[allies426]

No: HPFGUIDX 148936

In OoTP, regarding the Room of Requirement, Dobby says, "... it is a 
room that a person can only enter when they have real need of it.  
Sometimes it is there, and sometimes it is not, but when it appears, 
it is always equipped for the seeker's needs."  And he tells Harry 
to walk past the bit of wall 3 times, concentrating hard on what 
they need.

In desperate need, could the room become *more* than a room?  For 
example, if there were another battle at Hogwarts, and Harry ran 
past it thinking, "I need a way out of here" could it become a 
tunnel or a passageway?  

Alternatively, a lot of people have speculated that a Horcrux may be 
hidden inside this room when it functions as a hiding place.  It's 
unlikely to be found there, or if it is found, it's unlikely to be 
recognized for what it is.  Suppose that Harry was just wandering 
by, musing, "I need to find the last Horcrux," and a door suddenly 
appeared, would he realize the Horcrux was inside?  This thought 
actually occurred to me when I was reading about all the junk in the 
room when it functions as a hiding place.  (Aside - a blood-stained 
axe??  That struck  me as suspicious - when did a violent, bloody 
old-fashioned Muggle-type crime occur at Hogwarts and are we going 
to hear about it?)

Allie