The really twisted thing is that from what I've learned the spell was originally invented by Dark mages as a protection, not a curse, because it makes you as safe from an accident as a person can possibly be. You can run across a motorway in rush hour, climb a tree in a lightning storm, walk through a battlefield with bombs going off all around you, all without taking a scratch.
But the accidents don't go away; they just get redirected to everyone nearby, and when the spell is laid permanently, the results are horrible. The closer Luna gets to another person, the more the curse affects them. She can't live in the same house as anyone else, because something terrible would happen within a month. She can't keep pets, or they die. Even having friends is dangerous.
