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Originally Posted by godrichallowgirl  i thought that it was aim at james, sirius and lupin but after thinking about it i think he perfected it after lily died, he was so angry at voldie that i think all the rage was directed at him, but he could'nt show it because of the job he was doing for dumbledore.  |
my initial thought was that he perfected it long before lily died, because the spell was written in his potions book.
but, Harry got the potions book from the potions classroom - yes? is that right? perhaps Snape had kept that book the whole time and added to it as he got older.... I guess it would be possible for an older Snape to have added that to it with the cryptic note 'for enemies' (or something like that - forgive me if my memory isn't precise)
I possibly have vague memory of Arthur Weasley saying it was all the rage 30 years ago....