No, not demons. Dementors. And they weren't chasing me exactly. More like they were going to be punishing me. Imminently. Horribly. Bloody terrifying bastards. And...huh, no sign of them, no. As they're a bit hard to miss, I think we're safe.
Azkaban's a prison. I was on my way there. For murder. And before you ask if I did it or not, I sure as hell would have, if the little coward hadn't run.