The Time Turner and the Marauder's Map

[sirius_kase]

No: HPFGUIDX 36132

--- In HPforGrownups at y..., "uncmark" <uncmark at y...> wrote:
> --- In HPforGrownups at y..., "Felicia Rickmann" 
<felicia.rickmann at d...> 
> wrote:
> > I don't know if its been discussed, but I wondered
> > if a person using a time turner shows up more than
> > once on the map. If so why doesn't Lupin comment that
> > he say Harry and Hermonie twice by Hagrid's hut? I
> > figure a person only shows up once and that would be
> > for his or her first time though the events.
> 
> I'd be concerned with the size of the map and what it covers. 
>From the description Hogwarts has 142 staircases and 
estimates of 400-1000 students, around 7 floors, plus towers, 
dungeons, passages that the map shows in detail sharp 
enough to show individual students on a parchment no bigger 
than 2 foot by 2 foot( my guess from the description. It can be 
folded up into a pocket and shoen on one desktop.)
>

I usually visualize a C size sheet of paper.  That's 17 by 22 
inches.  I can see jamming that into a large pocket or a belt 
under a robe.  That's half the size of a standard blue print which 
is D sized, convenient to roll up, but it won't fit in a pocket. 
Size D 
is the largest that will fit on a desk, I think.  With such as small 
piece of parchment, only 4 times as big as a standard size A 
letterhead, the details would be extremely hard to make out in 
any parts of the castle which are crowded with people.  These 
would be Great Hall at meal time or the dormatory area in the 
evening.  Students rarely wonder off alone or in small groups 
unless they are up to something, that's why the map is most 
useful to mischief makers.  

> I imagine a magical view that zooms in on certain areas. It 
would follow the viewers focus and would highlight a certain 
area or maybe a certain person. The viewers focus is of 
particular importance.
>

sirius kase
 
That would be a useful feature, one the Marauders surely would 
have thought of and implemented if they knew how.  I don't see 
any clues in the books that indicate that they did.

> Harry never mentioned seeing a Peter Pettigrew on the map 
and I'm sure he viewed Griffindor Tower several times 
>

Too crowded to make out an individual name.  

> Harry did mention seeing Mrs. Norris the cat. (This spawned a 
theory that Norris is an anamagus) I think, however that it was 
because 
> Harry would have looked out Norris and Filch.

they aren't usually in a crowd.
> 
> Lupin knew Pettigrew as a rat so saw Pettigrew's name. I'm 
guessing 
> he kept the Whomping Willow Tunnel under survaillance. 
ALSO as my 
> view of the Marauder's Map follows the viewer It might show 
one 
> Hermione, but the viewer would not look for a second.

That's possible, who would think to look for multiple occurances 
of the same person?  And if you read carefully, it was when HRH 
crossed the lawn that Lupin saw them on the map, not while they 
were in the castle or the dense forest.  It is the very detail of the 
map that makes it so hard to see Peter and the time travelers.
> 
> Does this make any sense?

Yeah, my theory is very close to yours in that I think you are 
saying that the map shows the user what he is looking for 
whereas my explanation explains why he can't see everything at 
Hogwarts (map too crowded with details)
> 
> Uncmark