Vampires are beings caught somewhere between the spiritual and the physical. They have natural abilities which far exceed that of normal mortals, and their power continues to grow with time. As long as a vampire stays within the city of Harper Rock, it is thought that they can never truly die. However, their survival depends upon secrecy and feeding on the blood of living beings.

Humans are mortal creatures whose fragility makes their existence and survival a challenge. However, some humans can break free from their mortality and learn the abilities of sorcery, blood thievery, and more. Although most humans are not aware of the existence of vampires, their numbers are great, and for that reason the human race is still feared by most vampires.