The Marauder's Map, Again (was: Re: Snape knew about the passageway)

[lucky_kari]

No: HPFGUIDX 34841

--- In HPforGrownups at y..., Jennifer Boggess Ramon <boggles at e...> 
wrote:

> 1) Presumably the Chamber and its waterslide passageway are _not_ on 
> the Map.  (If they were, Gred and Forge would have known about them 
> during the events of CoS.)  What would someone watching the Map see 
> when someone entered the passage behind the sink?  Would they simply 
> "fall off" the Map, or would their dot hover uncomfortably in 
Moaning 
> Myrtle's bathroom?  If the latter, it must have been awfully crowded 
> in there (on the map) during the book's climax.

I would imagine they fall off the map. Otherwide, Gred and Forge would 
have had the entire faculty in Moaning Myrtle's bathroom immediately 
to find Ginny, even if it meant giving up their map. I'm sure the 
first thing they did when shedisappeared was check the map. 

> 2) Would Riddle have ever appeared on the map?  Ghosts do (at least, 
> Peeves does) - is the "spirit" in the book strong enough to show up?

First of all, when the book isn't in use, there'd be no question of 
him showing up. But even when he and Ginny are writing in it, I think 
that he was still a book. When Harry meets him first, he falls into 
the book, Riddle doesn't come out. In the Chamber of Secrets, though, 
I think the Map would have picked up Riddle, had the Chamber had been 
on the Map. 

> 3) Did Voldemort appear on the map when he was riding Quirrell's 
> skull?  I assume not, since I can't think of a reason for the Twins 
> to not use the map during that year - but why not?  How foolable is 
> the map?

Voldemort isn't there in the ordinary sense of things. Perhaps, you 
must have a bodily manifestation to be detected. Just being the back 
of Quirrel's Head (ugghhh) doesn't give you that separate 
manifestation. However, people in invisibility cloaks do have bodies, 
and ghosts have manifestations of bodies.

> I can't find any evidence in the books for any of these.  None of 
> them are plotbreakers - the Twins just might not be very observant, 
> just like they never happenned to look for Scabbers on the map.  But 
> I still wonder . . .

Scabbers I find the strangest. But......

Someone needs to go through canon and find every reference to the 
Marauders' Map. Then, we might be able to discover the rules (or lack 
of rules) by which it operates. For one thing, does it automatically 
name people, or does it only give names to people you know? I thought 
the first, but the second would be much more convenient. :-) 

And, why doesn't Dumbledore get one?

Eileen

PS Theories that the twins now have a copy are ill-advised, I think, 
since they could hardly have missed that Mad-Eyed Moody was Bartemius 
Crouch. But then, they missed Pettrigrew. Not too bright, those two, 
perhaps.