12 Grimmauld Place

{t}, Add {u}, {g}, or {b}.

"It's the ideal headquarters, of course. My father put
every security measure known to wizardkind on it
when he lived here. it's unplottable, so muggles could
never come and call - as if they'd ever wanted
to - and now Dumbledore added his protection.
You'd be hard put to find a safe house anywhere."
- Sirius Black