This story is based on "The Vampire Lestat" (1985). the second book in Anne Rice's Vampire Chronicles series, and it is a retelling of the relationship between Lestat and his mother, Gabrielle de Lioncourt, delving further into themes of femdom, incest, vampire domination and submission, foot worship, cunnilingus, erotic blood drinking as well as mind control. (not many of these will happen in the first chapter though) Please do not read if you are repelled by the above! Death will also be a recurring theme as this is a vampire story, and there will be occasions on which taking the life of humans will arouse characters.
Secondly, you do not need to read The Vampire Lestat to understand this story! It is a great book and I do recommend you pick it up, and I also think that generally being familiar with the book and the universe of the Vampire Chronicles will help you draw more enjoyment from this! That being said, for everybody who hasn't read it yet, here is a summary of the events prior to my story: (I'm summing up about 200 pages worth of content, so apologies if I can't keep this too short)
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Lestat de Lioncourt, the character from whose perspective this is written, was born in 1758, during the reign of Louis XV, in Auvergne, France. He was the youngest of three sons although his mother had given birth to four other boys and one girl--none of whom survived childhood. His father was the Marquis as well as a blind man.
Being the youngest of three, Lestat had no prospects; any land or money that his father left behind after he died would likely go to his eldest brother, Augustin. Lestat wasn't given a proper education because of this, but he took up hunting instead at the behest of his mother, Gabrielle, who had gifted him a mare and 2 hunting dogs to care for when he was still a teenager.
He became the best hunter in the family and at 20 he managed to kill by himself a pack of 8 wolves that were troubling the villagers on his father's estate and survive, and because of this he was gifted a fur cloak from the hides of those wolves by a rich merchant from the village. On this occasion he met Nicolas De Lenfent, a violinist and the only child of said merchant. Nicolas had been educated in Paris and for months Lestat cultivated a friendship with him, discussing philosophy, theatre (Lestat always wanted to be an actor) and asking about Paris. Lestat hated the old ways of thinking, not being able to see the world or get an education and being trapped on his father's estate, and he was quite taken by the atheistic views of some of the intellectuals in Paris Nicolas told him about. Lestat's mother fell ill in this period and thought she was not going to survive the winter between 1779 and 1780, so she sold one of her old family keepsakes, gave Lestat the money and encouraged him to run away with Nicolas to Paris as she wanted to die knowing her youngest son would be free. Nicolas himself wanted to escape to Paris and be a violinist to spite his own father, who expected him to inherit the family business, so they both agreed to do it.
In Paris they lived in poverty for a while, scraping by with Lestat's meagre wage as a backstage assistant as a theatre and Nicolas playing his violin in the street. Eventually Lestat was taken in as an actor and attained much popularity with the crowds because of his impulsive and passionate performances, described by critics as "the blond-haired rogue who steals the hearts of the ladies in the third and fourth acts." They still rented a small flat near Boulevard du Temple (an area with many theatres for the commoners and street artists) in this period but Lestat was very happy with his life, though he starts noticing a mysterious white face in the audience that is continually watching him. Lestat is kidnapped one night by the mysterious face, a more than 3 centuries-old vampire named Magnus who came to his flat on the rooftops and took him to a ruined Medieval fort on the outskirts of Paris where Lestat is held prisoner until Magnus decides to sire him.
The same night Lestat was made into a vampire, his maker commits suicide by throwing himself into a fire and asking Lestat to scatter the ashes to be sure that he won't return! Magnus was a very powerful vampire who never sired anyone before, but his features were very scarred (potentially by earlier suicide attempts that failed given that he knew Lestat has to also scatter the ashes to really kill him) and he was looking for a long time for an heir so he could die, leaving Lestat on his own with little knowledge of what he is and the powers he possesses. As his inheritance of being his only fledgling, Magnus left him riches of gold and other treasures to use as he wishes (jewelry of all kinds collected from centuries worth of victims). With this money, Lestat bought the theatre where he performed and frequently sent money and gifts to Gabrielle, Nicolas and even his father and elder brothers who always looked down on him so as to feel he was still doing good even though he had to kill 1 or 2 humans every night, but he avoided seeing any of them again. He also mostly fed on thieves and criminals in this period of a few months after his embrace, dressed like a noble, attended the best opera and theatre performances in Paris and often tested his powers by climbing towers or entering churches to see if anything would happen like in the legends. (he noticed a presence which didn't feel human watching him when he did this)
Lestat continues in this way until his mother Gabrielle arrives in Paris to see him one last time, dying from consumption. Knowing he can save his mother from her imminent death, he makes her a vampire like himself (which she asked for). Once Gabrielle's health is restored as an immortal, he shares with her what little he knows of what they both are and the source of his new found wealth. Lestat soon discovers after making Gabrielle into his fledgling that he can no longer hear her thoughts, as he could with all humans.
For six months they hunt together through the night, until "the presence" that has stalked them both blocks Lestat's path to the medieval tower (most of the rest of the castle except one tower was long destroyed) and he decides to attack it. "The presence" were a coven of about a dozen vampires led by a 16-year old looking but very old vampire called Armand, who wanted to kill Gabrielle and Lestat because they had broken the laws of his coven by living like and among mortals, and especially by "desecrating" churches, which Armand thought may bring the wrath of God to all of his kind. The coven also captured Nicolas, drawing Lestat and Gabrielle into a trap, but they managed to convince most of the coven that they didn't need to abide their own laws and be "servants of Satan", fear God or live in underground graves in the cemetery of Les Innocents. The coven itself rebelled when it realized that their leader had lied to and manipulated them into living as they did and Lestat succeeded in saving Nicolas, brought him to the tower and in spite of Gabrielle's warnings not to do it sired him as well.
Nicolas didn't speak at all for a few nights until Lestat recovered his old violin for him. When he went to look for it in the city 4 of the vampires who rebelled against Armand desperately approached him for help and informed him that all the other coven members had been burned by Armand for abandoning his Satanic code of laws. Lestat, pitying them, gave them permission to live and perform in his theatre (his former human troop was now acting in London) and suggested to them using their unnatural powers to pretend they are acrobats to human audiences as an easy first cover for Vampires who didn't know how to blend in society.
Nicolas, when given back his prized Stradivarius Violin, rewarded Lestat only with sorrow. He revealed to him that he was never his friend, that he now hated him more than ever before and that even during their supposed "friendship" Nicolas just wanted to spite his father and fail all of his family's expectations to the point that he hoped to never become a great violinist and even starve in Paris, a plan which was ruined by Lestat succeeding as an actor and even more by his expensive gifts after he was sired. Lestat and Gabrielle left the violinist with the vampire "troop" after this so that he wouldn't have a chance to enact his revenge on them. (the other 4 vampires and their leader especially, a woman named Eleni, were grateful to Lestat for helping them hide from Armand and agreed to keep an eye on Nicolas)
Some time later, in the spring of 1780, Armand found Lestat alone at a ball at the Palais Royal. He used his mental powers, which were the strongest among the vampires of the city, to seduce Lestat, telling him that he only wants his love because he is alone now and everything he treasured was ruined. Armand used this as a ruse to drink his blood and attempt to kill Lestat, whom he blamed for the destruction of his coven, but Lestat managed to fend him off after losing more than half of his blood, throw him through the glass windows into the palace gardens, defeat him in combat and then drag his body far away from human eyes. He hadn't killed Armand yet and he was very weakened himself, and here's where our story picks up.
As for Gabrielle de Lioncourt, she was an educated and free-spirited, if depressed, noble woman. Born in Naples to a wealthy family, she had seen many European cities in her early years, but was married to the Marquis de Lioncourt, a blind conservative man, at a very young age. She buried herself in books most of the time to cope with the isolation she detested in Auvergne, and of her 3 surviving sons only loved the youngest one, Lestat, who shared her desire for freedom and change and took the most after her.