Not a Dark Mark ?

[M.Clifford]

No: HPFGUIDX 139245


I can't take credit for this Brilliant theory. But I can't keep my
mouth shut about it either! ('specially since it gets me off that darn
boat! mumble mumble grumble...)

Throughout HBP Draco starts to look more and more sickly. He keeps
disappearing. In Borgin and Burkes he shows Borgin something that
frightens him, Harry thinks its a Dark Mark, but how can we be sure.
Can we even really be sure that a Dark Mark would frighten Borgin? 
When Snape showed Fudge his burning Dark Mark, it didn't frighten him
much, and there are many in the WW who don't even know what they are. 
Well it could be a Dark Mark, but since there *is* reason for doubt,
then why don't we call it a Werewolf bite ?

John Granger, to whom the credit for this brilliant find belongs, has
written about it on his site at this link.

http://www.hogwartsprofessor.com/home.php?page=docs/AlchemicalThoughtsHP7&PHPSESSID=0a29d7aacd33a7a04a82c41a8fc9ea3d

Thoughts anyone? Or are we all as dumbstruck as me?

Valky