From Grace to Blood
Michael hadn't planned to Fall, but it had happened, just one generation before the fated birth of his true vessel.
John was in the Pit, when Hell cracked open. He didn't think about it twice: he had to get out of here, before Alastair broke him, and because perhaps, he could help his sons once more. What was truly surprising was the fact that he got out at all, when he was nothing more than another soul on a rack.
- Part 1 of From Grace to Blood