This is a modern fantasy world where monsters from legends are real. They rule this world from the shadow under the jurisdiction of Gods. These beings are known as Other siders.
Creatures-
Varks: They are mortal beings with power similar to gods. Read the novel to find out more about them.
Vampires: Vampires are beings with human-like features. They require blood to survive as they require more prana to survive.
Ghouls: Ghouls are low-level vampires, they could not grow any stronger, they are mostly sold as slaves. Humans become ghoul after drinking vampire blood.
Magic-
Prana: Prana is the internal energy released by the souls, it charges the blood. Mage storage of prana requires on his soul quality.
Mana: Mana is prana released by the planet. A mage could absorb energy from the planet to make up for his own energy intake. The planet decreased producing prana for some reason so this option isn't used very often. A person's mana depends of the quality of soul and bloodline.
Magecraft: Magic spells as programs. That "program" is a set of universal rules that interfere with nature once they are enforced. The power that enforces those rules is the magical energy of the magus and the command to do it is made through his soul. The greater the interference, the greater will be the amount of magical energy consumed.
Organisations-
DE: the Dark Eye is a secret organization entrusted by governments around the globe to contain and study anomalous individuals, entities, locations, objects, and phenomena operating outside that break the contract made by humans and Other siders. If left uncontained, the objects would pose a direct threat to normal human life.
HTF: Hunters Task Force is a group of combat-trained magicians; they work under the DE.