The clue behind the door - SPOILERS

[pcaehill2]

No: HPFGUIDX 110251

lifeavantgarde wrote:
[snip]
> Could this be a hint to the identity of the Half 
> Blood Prince himself? There's someone in canon who
> bears an uncanny resemblance in my mind's eye to the 
> note here... 

and Brenda quoted:
[SPOILER!! snip]
> SECRET TEXT:
> (He) looked rather like an old lion. There were streaks 
> of grey in his mane of tawny hair and his bushy eyebrows; 
> he had keen yellowish eyes behind a pair of wire-rimmed 
> spectacles and a certain rangy, loping grace even though
> he walked with a slight limp.

Pam ponders:

Hmmm...could this be Aberforth (who, I believe, was positively ID'd 
by JKR as the Hog's Head barman)?

Order of the Phoenix, In the Hog's Head:
"    The barman sidled towards them out of a back room. He was a 
grumpy-looking old man with a great deal of long grey hair and 
beard. He was tall and thin and looked vaguely familiar."

I know, I know, grey does not equal tawny--but this was only Harry's 
first impression of Abby, who may not have washed in awhile (the 
goat's smell, remember?).  And rangy *may* equal thin.  

The wire-rimmed spectacles and "keen...eyes" are, to my mind, 
reminiscent of Dumbledore...

Pam, who is not married to this theory, but thinks it holds *some* 
water...