What saved Harry?

[mercurybluesmng]

No: HPFGUIDX 142588

Maria:
Why was Voldemort unable to kill Harry? I know we were originally 
told that it was because his mother died to save him, but surely 
Lily wasn't the only mother who did that!! There must have been more 
to it.
<snip>


MercuryBlue:
No, Lily probably wasn't the only mother to throw herself in front 
of her child, but she was certainly the only one who was given the 
choice to save herself, almost certainly the only one who worked out 
a spell beforehand to make her death count for something, and 
DEFINITELY the only one who made the spell work. Otherwise Voldemort 
wouldn't have ever thought about killing Lily before Harry. We don't 
know much about the spell, but there's an excellent theory over at 
www.redhen-publications.com/Potterverse.html. Among many other 
excellent theories.

MercuryBlue