Blavatsky

Book of Dagon
This noble family is cursed by a dark past. They were on the brink of extinction due to the nature of their harrowing house on the hill. In which, all manner of experiments were made on animals and men alike to find a way to make life everlasting -by any means necessary. The Christian church, that ruled at the time, deemed this was not for meek mortals. They were thusly hunted and executed by beheading. Now they are entrusted to keep the current Church of Dagon safe, as they are still feared by common folk, using blades like the ones their forefathers died by.