There is a book that describes the rise of the first vampires and the curse of drinking fresh blood, The Shadows of the Vampires found on the shelves of Storkus, near Kazordoon.
The Shadows of the Vampires
"The vampire plague had its origin in mortals dabbling with the dark arts.
In the wake of the Corpse War, several humans began practising forms of necromancy for one reason or another.
Some saw the seemingly overwhelming powers of the undead and desired them for themselves. Others desperately tried to discover some countermeasures for the undead threat.
Researching for either good or evil, a small cabal of people studying necromancy became infected or cursed, slowly turning them into ghouls themselves. The change was slow enough for the necromancer fledglings to try to avert this change with any means possible. They came up with several methods, mostly based on alchemy. At long last they turned distilled human blood mixed with several forbidden ingredients of demonic origin into an effective potion. Not only did the potion end the rotting transformation, it also revitalised the drinker, making him feel healthier and stronger than ever before. It seemed to be an immediate success.
After the entire cabal received the 'cure' it quickly became obvious that the success was only temporal at best. Soon they began feeling weak. Human food offered them nourishment no more. Again and again they were forced to revert to their potion. Trying desperately to find a permanent cure, they varied the original formula, to no avail.
Two of the brightest minds of the cabal finally joined efforts in their research, refusing to let others participate. This slowed them down in their experiments. At long last they came up with a theory that the blood of one of their 'kind' just might be the cure they need.
Instead of carefully draining themselves and exchanging the blood, they started an argument over who should be the first to be cured. Soon the argument got out of hand, resulting in a fight about who had made the discovery and who deserved the praise. A fight of words turned into a fight of fists, one of them ended up dead and the unwilling donor of the much needed blood.
The survivor indeed felt cured, even better than before. He disclosed his research to his fellow necromancers, declaring the death of his colleague an accident. The others were too interested in the cure to truly care, eager to be cured themselves. Though blood was gathered and exchanged it did little to cease the transformation, let alone stop it. The 'cured' necromancer soon figured out the blood had to be taken from a living donor in such a mass and speed that the victim would surely die.
Secretly he shared this knowledge with his most trusted brethren. They slew the others by night. After the initial shock the victims fought back. More than half of the cabal met its demise in this fight. Only few escaped, doomed to become nearly mindless ghouls.
The others learnt soon enough that the supposed cure only stabilised their semi-undead state in some way. Though no longer dependent on complicated alchemical potions, they knew that only the blood of the living would quench their thirst. Also, they were able to infect their victims with some strange strain of their own illness, making them the first true vampires with the attributes and vulnerabilities that are known to us today. It was not possible to recreate the original illness or curse that in combination with several not documented potions initially turned the cabal into unliving things."
Another book also narrates several theories about the origin of the vampire race: The Origin of the Vampires.
The Origin of Vampires
Since the vampiric curse is spread through infectious bites, many vampires know only little about the origin of their kind. Then again the longevity or even immortality of vampires makes it possible that they have even existed before the creation of mankind.
Of course such beasts are hard to capture and they do not like to share their knowledge. Even if you are lucky enough to be able to talk to one, you cannot be sure if he is telling the truth. In fact, most questioned subjects were making up stories and boasted about their importance, age and accomplishments.
Lacking historical knowledge, such individuals can usually be cornered by accurate historical questions. This leaves a few sources that can be seen as credible to some extent. Still, their reports are diverse and share only a few facts. These common facts are the most reliable information we have these days.
The vampires claim that the eldest of their kin still remember a time when humankind was still divided in nomadic tribes that suffered in the wars of the gods. Some see this as a reference that the creation of the first vampires took place before the Corpse War.
The majority of vampires agreed that there was only one shrouded forefather vampire, though few mention also a small coven from which the vampire plague was initiated. The most reliable sources tell about some 'lost kingdom' where the first vampires ruled over a herd of humans that they treated like cattle.
At some point in history, the younger vampires rebelled against the elders who suppressed them. Others claim the rebellion took place to gain power in this static aristocracy in which the older vampires would have never made room for the next generation due to being near to immortal. It is unknown which side won. In fact the discrepancies in the single stories are so large that we assume that the vampires themselves are unsure about the happenings in these obviously chaotic days. Some claim the rebels won and chased the aristocracy away, others say the ruling cast won and met the rebels with such brute force that the few survivors could only flee. Then again there are stories that the fight between the vampires awakened something evil which drove the surviving combatants off their once safe haven. A few stories even claim that the humans used this opportunity to rebel against their cruel oppressors.
There are no hints about the location of this lost vampire kingdom. It is assumed that it was somewhere overseas, though. Some historians suggest Edron, but, the ruins in Edron are said to origin from much earlier times. Others assume it might have been on the mysterious continent Darama, either in Drefia or in Ankrahmun. However, the destruction of Drefia took place much later and there were no reports about undead activity, except for the works of several local necromancers, before this time. Ankrahmun, on the other hand, has a very accurate historical library and there is no such thing like a vampire kingdom mentioned at all.
image:Bibliotecas de Kazordoon - Tibia Wiki
The Shadows of the Vampires (Book) - Tibia Wiki
The Origin of Vampires (Book) - Tibia Wiki