I couldn't help it. Kassie is an enabler. So here's Sirius Black, dragged out from behind the veil by those Unspeakables down in the DoM. :D Long story short, he doesn't really remember anything from before Azkaban, just vague memories, nothing specific. And the Unspeakables didn't bother telling him what happened after he fell, so he has no clue at all. Now he's stuck in the basement of the Ministry with Barty.