Two Questions about POA

[justcarol67]

No: HPFGUIDX 94903

Steffy wrote:
I believe Fred and George say that a tunnel on the MM that they 
had used before that once led to Hogsmeade is now caved in.  I 
immidiately thought of the Chamber of Secrets.  Maybe somehow the 
tunnels were connected.  I don't think the twins were in the 
Chamber, but they could have been connected some way...any opinions?
 
Geoff:
I've answered this before myself but couldn't trace the message 
number tonight. The two are not linked. The cave-in in the Chamber of
Secrets is below ground because Ron, Harry and Lockhart have gone down
the pipe from the girls' bathroom at that point...
<snip>
> ...'We must be miles under the school,' said Harry, his voice
echoing in the black tunnel.
> 'Under the lake probably,' said Ron, squinting around at the dark, 
> slimy walls.'"
<snip>
> But this is nowhere near the tunnle referred to by Fred and George...> 
> "'....Don't bother with this one behind the mirror on the fourth 
> floor. We used it until last winter but it's caved in - completely 
> blocked'" <snip>


Carol adds:
Also, of course, one passage leads to the Chamber of Secrets and the
other leads out of the castle, presumably to Hogsmeade. The passage to
the CoS would not have shown up on the Marauder's Map, which MWPP made
for their own mischievous adventures, because no one other than the
Heir of Slytherin (or Harry) could find the passage from the girls'
bathroom to the locked stone door with the snakes on it (IIRC). And
even if MWPP or the Twins had somehow discovered the passage to the
CoS, they could not have used it for escaping Hogwarts as the Twins
used "th[e] one behind the mirror on the fourth floor."

Still, that passage could possibly be cleared with a good Reductor
Curse. But as someone else pointed out (sorry I can't remember who),
PP has undoubtedly revealed the existence and whereabouts of all the
passages on the Marauder's Map to LV, and the best thing to do would
be to close them all as quickly as possible.

Carol