Book Two Discoveries!

[Brent]

No: HPFGUIDX 111866

Tooks:
> consider what JKR said about how we should question what LV did to 
> stay alive and add to that the "misprint" of DD telling Harry that 
TR 
> was, indeed, the last remaining ancestor of SS it seemed a rather 
> harmless.  But, although I fail to remember where the quote came 
> from, JKR explained that despite it was a misprint it was not 
> technically untrue.  

She was refering to the word ancestor and not descendent.  She meant to 
use descendent as SS was the Ancestor having been born first.  She 
says it is technically correct because some people use ancestor for 
people born to and those that bore them.

i.e.  Most people would not say you are not your grand fathers 
ancestor but some might meaning you are related.