Marauders' Map Blocked Passage

[foxmoth at qnet.com]

No: HPFGUIDX 27513

--- In HPforGrownups at y..., cynthiaanncoe at h... wrote:
  
> 
> In CoS, Ron, Lockhart and Harry are in a tunnel, which leads 
from 
> Moaning Myrtle's (which floor?) and caves in when Ron's wand 
> backfires.  Is JKR referring to the same tunnel Fred and 
George say 
> was blocked, or does she perhaps have something else in 
mind for the 
> blocked tunnel on the Marauder's Map?  

 I always figured the fourth-floor tunnel is a different passage on 
a much higher level which fell in when part of the structure 
beneath it collapsed  in the same cave-in that nearly closed the 
tunnel to the Chamber of Secrets.

Pippin who wants to know if Snape can see himself in that 
mirror!