The Dark-hearted

The dark-hearted are not vampires, ghouls, or any such other - they are simply humans gone bad: who have been morally challenged, have battled and lost - men and women who have forsaken all that truly matters - no longer being able to take in a sunrise, or care for any other … not even for themselves. 

Empathy, virtue, cheerfulness and nobility are crudely exchanged for their wretched desires. And just as an artery to the heart can become clotted, selfishness over time closes those portals where the light of life can come in through to nourish the soul.

—  Gabriel Brunsdon, Puck in Hell, Azlander Series