Harry Betrayed... Another Possibility

[marephraim]

No: HPFGUIDX 73250

Reading Melanie and Darrin's defense of our Ron -- that he would 
never betray Harry -- made me consider something. In all the 
discussions about who will betray Harry (if anyone; let's keep in 
mind we're speculating about an hypothesis) I don't believe I've 
ever read anyone discuss the possibility of a ghost being the 
betrayer. 

Now consider our dear friend Sir Nicholas: When Harry goes to him 
about SB we learn that the reason some wizards come back as ghosts 
is fear of the unknown ("I'll take the castle with the poltergeist 
instead of the veil, Monty.") and once made the choice is 
irreversible. IIRC he makes some comment (in a bitter tone?) about 
how miserable his ghostly life has been.

What if... He Who Must Not Be Named were to approach Sir Nicholas 
with either one of two propositions, 1) betray HP and I'll arrange 
for you to pass through the veil; or 2) betray HP and I can give you 
back your body (neck fully attached)? 

We've often said that JKR writes nothing without a reason. Why does 
Sir Nicholas keep popping up? Convenient plot device for escaping 
Filch? Or is there a more sinister reason for his apparent closeness 
to Harry?

M.E.