Do the math Re: Medieval attitudes was Saving Harry

[davenclaw]

No: HPFGUIDX 137830

--- In HPforGrownups at yahoogroups.com, "houyhnhnm102" <celizwh at i...> 
wrote:
>  
> I think the math[s] is pretty straightforward.  Wihtin a very short
> space of time, Trelawney tells Umbridge that she has been at 
Hogwarts
> for 16 years and Snape says he's been there 14 years.  This means
> Snape has to have been hired by Dumbledore at least two years after
> the prophecy was made.
> 
> So Snape is coming to apply for a job at Hogwarts as a real Death
> Eater, under Voldemort's orders so he can spy for LV.  He happens 
to
> arrive just when Trelawney is there for the divination position,
> listens at the keyhole, overhears part of the prophecy and reports
> back to Voldemort.
> 
> Two years pass.  Something turns Snape against Voldemort--probably 
it
> is more than one thing  (I suspect Snape becomes disillusioned 
with LV
> himself), but could include LVs plan to assassinate the Potters and
> Snape's life-debt to James Potter.  He goes back to Dumbldore, 
offers
> to turn spy, and Dumbledore gives him a job at Hogwarts as the 
potions
> master.


Not quite.  Unless I'm mistaken, during the pensieve seen in GoF 
where Karkaroff is naming names at his MoM trial, Dumbledore says 
that Snape became spy before LV fell.  LV fell when he went after 
Harry.  And we know from HBP that Snape came to DD when he realized 
that LV was going to kill the Potters.  So Snape was basically on 
DD's side (supposedly) for two years before he became Potions 
master.  I wonder what he was doing in that time?

- davenclaw