(nvbl)

[steven1965aaa]

No: HPFGUIDX 152388

Often through the books little details later turn out to be 
important.  I was wondering, why did JKR take pains to make it clear 
that levicorpus is a nonverbal spell?  It could be a meaningless 
detail, but maybe not.  I have a guess.  Maybe this has been thought 
of before, but anyway, at the end of HBP Snape says "You dare use my 
own spells against me, Potter? It was I who invented them ... you'd 
turn my inventions on me, like your filthy father ..."  So we know 
James used the Spell, and we know that Snape invented it.  How did 
James learn the spell?  Since its nvbl, he did not hear Snape say it 
and copy him.  He could only have learned it from the HBP potions 
book.  How did he get his hands on Snape's potions book?  Snape was 
sharing it with Lily, which accounts for Slughorn's repeated 
references to her potions ability.