Undead Princess Ophelia
The undead are in essence immortal creatures, trapped as they are in an eternal state of 'semi-being' that touches the boundaries of both life and death while crossing neither. Some of them though, eventually do traverse the line and die, either by being destroyed in combat or of disease. This last instance happens very rarely indeed, but unfortunately for Ophelia she is one such exception, afflicted as she is by a cancer that is eating away her marrow. She is withering away and nothing can be done about it, at least, that's what the other undead say, who believe that this disease is a punishment from the gods. Ophelia though, doesn't want to give up without a fight and she is determined to find a cure or any sort of alternative that may keep her alive, even if it goes against her own faction.