Some pirates achieved immortality by great deeds of cruelty or derring-do. Some achieved immortality by amassing great wealth. But the captain had long ago decided that he would, on the whole, prefer to achieve immortality by not dying.

Most of the members of the convent were old-fashioned Satanists, like their parents and grandparents before them. They'd been brought up to it, and weren't, when you got right down to it, particularly evil. Human beings mostly aren't. They just get carried away by new ideas, like dressing up in jackboots and shooting people, or dressing up in white sheets and lynching people, or dressing up in tie-dye jeans and playing guitars at people. Offer people a new creed with a costume and their hearts and minds will follow. Anyway, being brought up as a Satanist tended to take the edge off it. It was something you did on Saturday nights.

And the rest of the time you simply got on with life as best you could, just like everyone else.

Just because you can explain it doesn't mean it's not still a miracle.