What were the biggest hidden clues in OoP?

[gsanderson at cfl.rr.com]

No: HPFGUIDX 96069

--- In HPforGrownups at yahoogroups.com, SiriusBlack4Eternity 
<willowsgreyghost at y...> wrote:
> 
> 
> Kristen
> 
> 1. Prof. Umbridge uncovers that Snape has been at Hogwarts for 14 
> years which means he joined right after LV's demise.  This implies 
> that he played a big part in the events, but who's side was he on?
> 
> SB4E:
> 
> I'm going to focus on this one statement...according to Severus, he 
has been teaching for 14 years.  Harry is 15.  15 - 14 = 
1...therefore he started when Harry was 1.  OK, school starts on 
Sept. 1, so he started teaching in September after Harry turned 1 in 
July.  James & Lily did not die until Oct. 31 after Harry turned 1 in 
July, so therefore Severus was teaching at Hogwarts for almost 2 
months *PRIOR* to LV's downfall, not after.  I still think he played 
a big part in the events, but he was already spying for DD by this 
time.  And I'd say he did it rather easily by telling LV that he had 
acquired a position at Hogwarts which would make him more useful to 
LV.  So, I think that it was Severus that alerted DD to what LV had 
planned for the Potters....
> 
> SiriusBlack4Eternity
> 

Excellent point!  I thought about that after my post, but I knew I 
could count on someone here to correct me! :)  I think the timing of 
that is very telling.  Also interesting was the fact that Umbridge 
did not seem to play favorites with Snape even though her squad was 
mostly Slytherin and he is full-blooded (so far as we know).

Kristen