Prologue

The Director tapped his fingers on his extravagant mahogany desk impatiently, stopping the nervous movement as the door opened. Two people entered his office, a young blond woman in conservative black dress. His assistant. The other person was a dark haired woman who obviously had a confidence beyond her apparent years, her green eyes were alert and gave the impression that she saw straight through your lies.

"Good day, Marie." The Director said as his assistant left the room.

"Good day, sir."

"Please sit," he said gesturing. "I would like to ask you some questions," he said pressing a record button. Marie noticed it, but didn't react.

"Very well, sir." She said, her voice level.

"What do you know about vampires?"

"Vampires, sir?" she paused. "Vampires are former humans who have been infected with the so-called 'Vampire Virus' that has been recently proved to originate from another dimension. There are wild speculations of the exact origin of the virus, popular one places the virus home to Hell. While this is fitting, it is implausible since the dimension called Hell is occupied by organisms that would consider this virus less dangerous than a minor flu.

Vampire can be carrier of the virus all his life, once he dies the virus will take over. There is no known reason why some people are affected by the virus and others are not. There are some physical traits that will increase the possibility of being reanimated. A good heart, and functional brain and central nervous system are absolutely required. A young body is more likely to be reanimated than old."

"And their condition?" The Director asked.

"Vampires feed on blood. It does not matter where the blood comes, as long as it is fresh. Eventually they start running low on blood, as their own body does not produce it, in fact, it digests it. When the blood level of a vampire drops, their brain starts to lose cells more rapidly. They will lose functions of their higher cognitive functions until they will enter feeding frenzy and attack any potential blood source. Once they have enough blood they will regain their senses. If they don't get blood in time, they will die. This time permanently.

Every time this feeding frenzy happens they will suffer some minor brain damage. Eventually they regress to the level of barely intelligent animal. If they should survive long enough to experience this repeatedly, they will eventually enter a state that is barely in level with basic animal cunning; attacking anything and everything that can provide blood."

"Good. Anything more?" The Director prodded her.

"There are some reports of elder vampires who have learned to keep their own blood levels constant, so they are effectively near immortal. There is some controversy around the question how their bodies will fare the passage of years. There are reliable evidence of reanimated corpses that have survived for several hundred years without any significant loss of intelligence. There are suspicion that they might suffer from loss of memory or jumbled memory. But not much is known.

Also, unlike movies Vampires have no superpowers. But they are generally more alert, feel almost no pain, have very sensitive senses. Although they lack most of tactile and all of gustatory sense. They also seem to be able to produce impressive amounts of adrenalin at will and require no or very little oxygen and thus tend to be able to work themselves literally to death, or lift weights heavy enough to break their bones or rip their muscle tissue. They are very dangerous opponents, especially if they have survived for two or more decades as a vampire. Additionally, the older the vampire the less water their body holds, it is not fully understood why. And lastly, they heal very slowly but they are nearly impossible to kill without targeting the heart or head."

"Quite exhaustive. I am impressed." He said, smiling slightly condescendingly.

"Thank you, sir. Would you tell me what this is about?"

"In a moment, Inquisitor. Now, would you tell me what you know of Demons?"

"Very well, sir." Marie said, a hint of impatience in her voice. "Demons are not biblical as one would expect by the name. They are in fact Dimensional Beings, these days sometimes also called Demons. There is no uniform demon, since the races vary wildly from dimension to another. Demons are also a reference to the specific dimensional beings that come from a Dimension called Hell. While the dimension is not the final resting place of sinners, it deserves the name.

The dimension is a evolutionary hell-house having every imaginable kind of species that is either poisonous or just plain dangerous. The all races of Hell are unarguably nasty and vicious. If any Demon from Hell would ever manage to strafe to earth, it will undoubtedly cause terrible havoc before it could be destroyed. There is very little knowledge of Hell, since the cost of researching that lethal dimension is outright stupid, and also banned. There has been some rumors that few decades ago Russians were busily sending teams in to Hell, but it has not been confirmed and it is quite clear that if such research program existed, it no longer does."