Marauder's Map

[Susan McGee]

No: HPFGUIDX 4581

> 	The map would then be able to recognize Snape and insult him.
>      Harry, Fred and George, keeping in mind Mr. Weasley's warning, 
> intend to use the map only to find their way through the corridors 
> without getting caught, so maybe the map  only shows them those 
> entities which might hinder them from doing this. Pettigrew, asleep 
in 
> the dormitory, isn't a danger  in that respect, but Crouch, moving 
> around the castle, is.
> 	Lupin, whose motive is to protect Harry, is using the map for 
a 
> different purpose and might see different things.
> Pippin

Oh, gosh, I'm struggling here, but magic has laws which you
can't transgress. My guess is that the map shows people who
are in the castle, but that Ron and Harry were very focused
on getting out of the castle, and evading their professors.
They probably didn't notice Peter Pettigrew on the map.

So, how come the map recognizes Snape and insults him? Because
the four Marauders set it up to do that in case their schoolmate
Snape ever tried to use the map.

Susan