Shadows from Voldemort's wand & Portkeys

[pippin_999]

No: HPFGUIDX 32072

--- In HPforGrownups at y..., "cindysphynx" <cindysphynx at h...> 
wrote:
a theory about how James and Lily knew about the portkey.
  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.

   Not if the portkey returning is a side effect of the tampering, one 
that James and Lily knew about and LV didn't. Of course that 
requires that LV be less swift than James and Lily, but we know 
that already. I do like the idea that wizards have a way to identify 
portkeys, though. But they'd still have to be looking, and why 
would they look, unless they already knew?
> 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?

Well, you wonder why they just didn't turn all the DE's into 
centipedes and stomp on them. But it doesn't sound as though 
they had time. I don't think they could get out of the web until 
Harry broke the connection, and then they had only moments, 
which they used to block Voldie while Harry made a run for it. 
They weren't there to interfere with the stunning spells. As for 
why the DE's didn't get him, well it was dark, and it's been 
thirteen years since the DE's had any practice. 
   Of course it's also possible that they were cursed with the 
selective myopia which afflicts Imperial Stormtroopers, Orc 
archers, Klingons and other henchpersons whenever they shoot 
at the good guys.

Pippin