What were the biggest hidden clues in OoP?

[earendil_fr]

No: HPFGUIDX 96013

Kristen wrote:
> Just curious what you all think are the biggest hidden clues in 
book 
> 5. This means information that JKR mentioned in passing that will 
> become important later in the series. 
> (snipping suggestions)
> Other thoughts, anyone?

Earendil:

Quoting McGonagall in UK edition of OotP, page 586:
'Potter,' she said in ringing tones, 'I will assist you to become an 
Auror if it is the last thing I do! If I have to coach you nightly, 
I will make sure you achieve the required results!'

For me it suggests two things. First, Harry will become an Auror and 
might get help from McGonagall. Second and more importantly, the 
phrasing 'if it is the last thing I do' makes it sound like 
McGonagall is going to die before the end of the series.
(BTW I wonder if she'll be totally healthy in Book 6 after all the 
Stupefying she's suffered from in Book 5...)


Earendil.