LV - Dorian Grey??

[Tonks]

No: HPFGUIDX 167764

Watched Jeopardy tonight and there was an answer that was a quote from 
a book about a painting of a headmaster that was hanging on a wall and 
I thought of DD in HP. But to my shock HP was not the answer. The 
Portrait of Dorian Grey was the answer.  I have never read it, so I 
went to the internet to get a quick summary. Hum… for those of you who 
know the story, do you think that this book may have had an influence 
on Rowling? And if so does it tell us anything about the possible 
outcome of the books? It talks of a panting and the man’s soul trapped 
in it that makes his immorality. Just wondering if there is any clue in 
this work that may help us understand Rowling. What do you think?