Priori Incantatem, was: surviving AK

[eloise_herisson]

No: HPFGUIDX 113880

Alex:
> 
> BTW, speaking of PI, there was a thread a week or so ago about why
> Priori Incantatem wasn't used to clear Sirius of the Pettigrew 
murder.
<snip>The answer is that it
> wouldn't have been possible.  Priori Incantatem isn't a spell.  
We're
> told in GoF (US hardback p. 697, the chapter "The parting of the
> ways), that Priori Incantatem is a "Very rare effect" that happens
> when two "brother" wands are forced to do battle.  It is, 
apparently,
> totally involuntary, and since it only works between "brother" wands


Eloise:
'Twas I.

You're quite correct, Priori Incantatem is just as you describe, but 
*Prior Incantato* *is* a spell. It is used in Ch.9 of GoF to 
establish that Harry's wand had been responsible for conjuring the 
Dark Mark at the QWC. They are evidently related effects as reflected 
in the similar names and therefore confusing abbreviations.

~Eloise