Big Blond DE (was Re: Heroes and Not - What should Snape Have Done?.

[potioncat]

No: HPFGUIDX 145426

  
> Julie:
> Sorry, but that moment is very ambiguous. Harry can't raise his wand
> before Fenrir is on him. Harry feels Fenrir's "hot greedy breath 
on  his
> throat--"
> "Pertrificus Totalis!" 
> Then "Harry felt Fenrir collapse against him; with a stupendous  
effort
> he pushed the werewolf off..." (etc, etc, as scene continues)
>  
> I don't know if JKR was being deliberately vague, but it is not
> at all clear whether Harry managed the spell himself (wandless 
> magic, is he even capable of it?), or if someone else shouted it. 
> So you're not right. No one can be right on this one, because
> it's inconclusive. 

Potioncat:
It is ambigious and I'm sure it's on purpose. If nothing else, it 
makes the battle scene more chaotic.

But, I have an idea. I think the Big Blond DE petrified Greyback. I 
think he's one of DD's spies. Look at what he does. He's sending 
spells all over the place but doesn't hit any of the Order members. 
He kills one of the DEs (not told it's an AK) He fights with Hagrid, 
then sets his house on fire to distract him. (I think.) He seems to 
be trying to get out of Hogwarts while causing the least possible 
damage to anyone. Although some of the readers think he's the one who 
Crucioed Harry, we aren't told that. It could have been the brother 
of the sibling pair who was seen Crucioing earlier in the battle. All 
three of them are behind Harry at that moment.

The weakest part of this theory is, if he was working for the Order, 
why didn't he send word about the attack on Hogwarts? Unless of 
course, he didn't have time. Also, if he is a spy, the Order members 
must not know him.