God I love your Sirius; he's just like I see him post-Azkaban: the man who's never had a chance to grow up and, back in his parents' house, there's no way he can break the pattern. Ron is awesome too, all blushing boyishness, and Regulus and his manipulation. This story weaves together so beautifully, so rich and bleak at the same time - I'm in awe.