When a Master of the Night bites another being and inject his fluid inside him, it becomes an un-dead. They are conceptually similar to classic vampires and can be former humans, animals, aliens and others. The victim, in order to be transformed, must be alive when the fluid is injected, then that will die and after some hours will come back to life. A Master can modify the shape of an Un-dead using more fluids and operating on his body. Examples are the werewolves of Mordha and Nergal or various un-deads of Henzing and Musuraka, which looks like actors or characters from movies. The un-deads can't die of aging, but need to consume blood in order to stay healthy. If they don't consume blood, they will wither more and more, progressively becoming weak, frail and unable to act. They are naturally faster, stronger, and more durable than any human and these characteristics are greatly enhanced if the un-dead is well fed and trained. They have the common trait to not feel pain, heat and cold, they are immune to drugs and poisons and they don't need to rest, being unable to sleep normally. They can shift between their normal human aspect and their vampire aspect, which consists in large and sharp claws and teeth. They can't be killed by normal wounds like stabs and gunshots, even in their head, they don't feel the damage and they heal by drinking blood. In order to kill them, you have to inflict heavy damages to them, like decapitation, bisection, dismembering or else. They also have weaknesses, like fire and sunlight, which burns them. Dampyr's blood is another lethal weapon, that melts their flesh and set them on fire without the possibility to heal normally. A quick way to kill them is to destroy their heart, but a total destruction is needed, bullet shots and normal stabs aren't enough. You need a large weapon to pierce and smash the heart, and also great strength, because their rib cage is naturally more resistant and armored with a thick bone covering. The un-deads are completely subjugated to their creator and can't refuse to obey them. The Masters of the Night have a complete control over their un-deads, they can manipulate their minds in many ways, see through their eyes, talk telepathically with them, possess them from a distance and directly kill them by making them explode in a blast of fire. The only way for a un-dead to acquire freedom is the death of their Master or if it willingly gives them independence.