Can the Marauder's Map be deceived?

[siriuskase]

No: HPFGUIDX 54183

--- In HPforGrownups at yahoogroups.com, "Devika" <devika at s...> wrote:
> --- In HPforGrownups at yahoogroups.com, "Briony Coote" 
> <briony_coote at h...> wrote:
> > I have three questions about the Marauder's Map:
> >  
> > 1 - Why didn't Peter Pettigrew show on the Map during the years 
> that the
> > Weasley twins used it, or when Harry started using it?
> 
> My theory is that the Map only shows people who are relevant to 
> the "mischief maker" using it.  IIRC, when Harry uses the Map, it 
> usually shows Filch, Peeves, Dumbledore, and others who might make it 
> difficult for Harry to sneak around the castle.  The map never seems 
> to show all of the students in the school (at least, we aren't told 
> that it does).  This is probably because Harry really doesn't need to 
> know that there are students in Gryffindor Tower or in other common 
> rooms, for example.  The Map only shows the people who are near to 
> Harry or who might affect where he is trying to go.  When Fred and 
> George used the Map, they probably did not need to know about Ron and 
> where he was or about people in Gryffindor Tower.  Since Scabbers was 
> probably in Gryffindor Tower when he wasn't with Ron, there would be 
> no reason for him to show up on the Map. 

I agree with what you write.  I'd like to add something with regard to
the question of which house the marauders were in.  I'm sure Harry
would just love to know the whereabouts of Snape and Drace, but they
don't show on the map because they are hanging out in Slyteran land, a
part of the castle that the manufacturers didn't have access to. 


> --Devika