Sirius studied him for a moment, and then nodded, not asking any more than that. Par of him had never quite been able to reconcile the idea of his little brother, who he'd known well as a boy, with someone capable of doing he things Death Eaters did. He'd always thought that was likely what killed him - he just wasn't murderous bastard enough.
"Yeah well, you're alive. And here." Sirius hesitated a second, and then closed the space between them, reaching o squeeze Regulus' arm briefly. "Be careful, Reg. And let me know where you are. We can. . . set things up."