Lord Voldemort's Vanishing Cabinets

[caesian]

No: HPFGUIDX 133037

One more little item.

We know when the vanishing cabinet at Hogwarts was broken.  It was  
the same black and gold Vanishing Cabinet that was smashed by Peeves  
at Nearly Headless Nick's suggestion in CoS.  We also know that the  
other Vanishing Cabinet, it's twin, was at Borgin and Burkes at that  
time, as Harry hides from Draco inside (although leaving the door  
cracked).  Thus, until the moment that Peeves destroyed the cabinet  
at Hogwarts, we might assume that there was a functional conduit  
between B&B and Hogwarts.  It may have been there for a very long  
time - although unknown to many.  Draco has to 'figure it out'  
himself, for example.

Given Voldemort's history at B&B, I would venture to guess that he,  
at the very least, knew of this conduit.  He may have created it.   
Further, that he visited Hogwarts after his own graduation on more  
than one occasion, and perhaps without Dumbledore's knowledge.

Voldemort could have searched the school, hidden something there  
(perhaps within the chamber of secrets) or left behind traces of his  
passing. (Did he interact with the Bloody Baron, or the Grey Lady in  
an attempt to find something of Ravenclaw's?).

Finally, I would venture to guess that Harry's quest in Book 7 will  
lead him back to Hogwarts to follow this trail.