Some questions to throw atcha

[Bugg]

No: HPFGUIDX 23934

4) I am still puzzled about the Marauder's Map -- why didn't 
Harry or Fred n' George see Peter a.k.a. Scabbers if they saw 
everyone else? And Sirius a.k.a. the big black dog? Snape did 
and they didn't?


Someone once suggested that the map created by the Marauders 
hid there whereabouts unless activated by one of them. Lupin 
[a marauder] activated the map and saw Peter. Snape picked up 
the map activated by Lupin and could see him. Peter and Sirius 
were out of bounds in the Shreaking Shack, so Snape did not 
see them. 

Bugg