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. Their numbers are great and they are now aware of the existence of vampire kind, and for that reason the human race is still feared by most vampires.

Also known as demi-fae, the semideus are beings created by or descended from god-like nature spirits known as fae. For this reason they are typically the natural enemies of vampire-kind. Often considered the guardians and champions of nature, the truth is that in modern times the surviving semideus are as free to choose their path as vampires. They are also just as deadly.