"You didn't care enough to find out. As I said. Moot point. Especially in light of Mother's obvious attempts to foster the resentment. I'd rather not give her the satisfaction, especially considering how long it was."
Regulus looked faintly amused. "You know, the rest of the wizarding world doesn't actually revolve around Britain. People know of Him, but they, for the most part, don't concern themselves with what He may be doing or not doing, whether he's alive or dead. News filters down slowly and full of rumor and exaggeration. I could, have course, taken the wards off the Mark, but then He'd know I was alive and that would just be stupid, wouldn't it?" He sighed, and ran one hand through his hair, looking unaccountably frustrated for a moment that Sirius wasn't getting it.
"Because he has to die. Because I'm tired of running. Because the Chosen One is old enough to do the job and not a child any more. Because I can help, in some small way. Does the why really matter? Don't you get it yet? That's what I did, Sirius. I stole one of his horcruxes. I know where it is. I just don't know how to destroy it. Maybe your godson is the only one who can. I don't know. But I had to make sure it got to the right person, to weaken Him, to make sure he stays dead this time."