Shadows from Voldemort's wand & Portkeys

[cindysphynx]

No: HPFGUIDX 32069

HP fan wrote (about the wand shadows):

>  Otherwise, how did they talk to him and know who he was or 
> know 
> > how to keep Voldemort at bay when Harry was supposed to 
> run. 

Pippin replied:
 
>   It 
> is an interesting question how they learned about the portkey. 
> The wand evidently is able to read the intentions of an 
> experienced wizard, so that when Molly says "accio!" to summon 
> the toffees from the twins' possession, it doesn't send everything 
> in the room flying toward her.  So there's some silent  
> communication between the wizard and the wand.
>   Frank Bryce doesn't seem to know about anything, unlike 
> Bertha and the rest.  It may be that the shades of magical people 
> were able to eavesdrop on Voldemort's planning stage 
> conversations with Crouch and Wormtail, and that's how James 
> and Lily know about the cup. 
> 

Interesting question.  I wouldn't say they learned about the cup-as-
portkey from eavesdropping, because for this theory to work, 
Voldemort must have known that the cup would return Harry to 
Hogwarts.  Which raises the question about why he didn't have a DE 
stand guard over the cup.  Why he didn't blast Harry at the first 
opportunity.  Why, when Harry is running closer to the cup, Voldemort 
says to leave Harry alone.  Why Voldemort didn't Summon the cup 
himself.

My preference is to avoid theories that make Voldemort even less 
swift than he already is.  If he knows the cup is a portkey back to 
Hogwarts, then his behavior was really inexplicable (although 
opinions definitely differ on this point).  

As for James and Lily knowing about the cup, perhaps (and the 
L.O.O.N. portkey specialists will have to check this) portkeys put 
out some sort of magical energy that wizards can sense if they are 
consciously looking for it.  (This would be why Amos Diggory finds 
the portkey in GoF without picking up every piece of garbage on the 
hill, and how he could tell it was a portkey in advance of the pre-
arranged time).  If so, then the shadows may have sensed this 
energy.  Voldemort, Cedric, Harry and the DEs would not have sensed 
this energy because they were not consciously looking for it.  

As for Frank Bryce, I wouldn't say he necessarily has less knowledge 
than the rest.  He surveys the battle with "mild surprise" and 
says, "He was a real wizard, then? . . . Killed me, that one 
did . . . You fight him, boy."  It's almost like he is piecing it all 
together right then, on the spot.

Circling back to the subject of portkeys, I wonder whether it is 
possible that the shadows themselves changed the cup back into a 
portkey.  In other words, Fake Moody did everything right by changing 
the portkey to carry Harry to Voldemort -- a typical one-way portkey 
trip.  The shadows were so powerful that they changed the dormant cup 
back into a portkey.  And (since we're really on a speculative roll 
now), maybe the shadows also prevented the DEs from stunning Harry, 
as it has always bothered me that 30 DEs shoot at Harry and they all 
miss.

Perhaps the shadows developed their plan because, once they are out 
of the wand, they become both omnicient and powerfully magical.  What 
have I missed that makes these theories unworkable?

Cindy