Where oh where is Mr. Ollivander...

[finwitch]

No: HPFGUIDX 148234

> 
> Tonks:
> 
> Here is another idea (bit of a mix of others):
-- DD is Ollivander's secret keeper.

Finwitch:

Well, it might be that Ollivander has a Secret Keeper and he never
left his wandshop. Particularly as he seems to be just disappeared.
And I do believe that the SK is someone at Hogwarts, but my guess is
McGonagall. 

That way, Ollivander appears gone to all adults (except McGonagall),
*but* the children recieving their first Hogwarts letters WILL know.
They're the primary customers for new wands, after all.

Finwitch