Order Headquarters

[Hitomi]

No: HPFGUIDX 91562

I agree with everything Louise had to say, but also we don't know 
that most dark wizards knew where the Black's house was.  It could 
even have been moved around, and according to Book 5, Hermione I 
think, the place was covered in protections, even before the Order 
began to use it.  Also, Kreacher is not allowed to give information 
the Order/Sirius forbid him to give, according to DD, and I'm sure 
one of the things they told him never to tell anyone is where the 
Order is located.  Kreacher could tell the Malfoys information in a 
roundabout way, but never something so direct, and of course, there 
is the Fidelius Charm, as Louise has already described. 

~ Hitomi