Secret Passageway Question

[Hannah]

No: HPFGUIDX 114981


JR wrote: 
> I know that this question is a little out of left field, but I 
just thought about it today.
> 
> In POA, Harry takes the secret passageway behind the humpback 
witch that leads him into Hogsmeade.  Now since it seems that Fred 
and George know about this because of the Mauraders Map, wouldn't it 
> stand to reason that Wormtail also knows about this secret 
passage.  
> Why wouldn't he let the Death Eaters and Voldemort know.  It would 
> seem to me that this would be a fairly easy way to invade 
Hogwarts.  

Hannah: I always thought the reason that LV and the DE's didn't 
attack Hogwarts was more due to fear of DD than the fact they 
couldn't physically get into the castle.  After all, a lot of DE's 
are parents, so presumably can walk in any time.  If LV did decide 
the time was ripe for attack, then he might well be glad of a nice 
secret passageway.  But the thing that keeps Hogwarts safe, DD, 
isn't just going to be overridden by a group of DE's emerging from a 
statue.  Let's hope for the sake of the students that he's still 
around until the end of the war.
Hannah