What Sirius remembered of the Malfoys was enough to make him agree with her, but now wasn't the time for complaining about their various relations and their ways. He looked at Dora with perfect seriousness, knowing that she wasn't likely to believe him. After all, who wanted to hear that they were dead?
"It's all very complicated, and we still don't know why it's happening. Dora...you died during the last days of the war. That was almost three years ago now. I only know this because I've been told. I myself don't remember anything past October 1981," he looked at her sympathetically. He knew it wasn't easy to come to terms with.
"Somehow we've been brought back - I don't know how, or why. But we need to be careful...It seems like this may be linked to Harry, but that might not be true. Bringing back the dead isn't easy. It would take--" he hesitated to voice the thought that had been dancing around his mind since they'd spoken to Harry. Dark Magic, the very sort that Voldemort would have given his - or more likely someone else's - right leg for.