It took Celestia a great deal of work and patience to calm down the group of ponies, from the professor being turned into a chicken and back, to the two parents who were also turned back and was, understandably, VERY worried their daughter was lying in a pool of a blood and unconscious, yet somehow uninjured if looking a bit paler than normal.
If of course didn’t help that Alucard, that bastard, stood in the background with his twisted wide grin of amusement, making small-time commentary over the whole process, seriously testing her patience and wishing he was weak to sunlight, so she could just blast him away from the surface of the planet. Oh, how she wished she would never see that mocking grin again from his stupid pale face.

It was not long after the group, minus the professors, was sitting in a private room, both Velvet and Night Light cuddling their unconscious daughter between them as Night Light glared at Alucard with distrust as he said “W-What happened back there? Who is he?! What is he?”
Celestia sighed and was about to answers his questions, when Alucard grinned widely and before she could get another word in, he stood up and bowed mockingly towards him and said “Alucard at your service. Undead-killer, destroyer of Nazis and Catholics all day long, best damn vampire you’ll ever see anywhere ever and apparently new protector to that little furball of destruction right there. Follow me at @TheCrimsonFuckr.” Velvet blinked in confusion, as Night Light tensed at the mention of vampire, while Celestia glared at him annoyed for the interruption and not making the situation easier.

“W-What do you mean protector!? Also, vampire? Those are real?! And what happened to our daughter?!” Velvet said, growing nervous and panicking, as Alucard laughed and said with a vicious grin, showing his fangs.
“What I mean is that I am an undead, blood-sucking, soul-swallowing fuck-mothering vampire! And as for what happened to purple-pony, she was pierced in the chest and stomach by 3 shards of wood and getting close to being dead after she exploded my coffin, which was VERY comfortable and expensive by the way! Of course, as she awoke me from my slumber, I am somewhat bound to her by some stupid rules. Not slave-bound, I can tell her to go fuck herself, but I am bound to protect her from imminent threats and such hassle. Nothing special really as I doubt she will face a lot of danger in this peaceful Disney-looking excuse of a world.”

“D-Dead?” Night Light repeated horrified “B-But how did she survive and heal so fast?! It is not physically possible even with the strongest healing spells!” looking at his daughter with horror and concern for her well-being, as she was still sleeping between the two adult ponies.
Celestia sighed and said quickly, before Alucard could interrupt again “She is still alive, because Alucard saved her life.”
He grinned viciously and nodded, chuckling amused “Indeed! One point for Sunny-D!” Celestia’s eye twitched in annoyance as he continued “Of course it can be debated whether or not she is alive at this point. I didn’t as much save her as I turned her into a vampire and made her bitching immortal!”

Velvet paled as Night Light turned to glare at Alucard, who grinned back amused at the anger “Y-You turned her into a vampire?!” Velvet stated horrified, looking at her daughter with even more concern “B-But what about her life?! She can’t live like a normal pony if she can’t even go outside during the day! And will she need blood?!”
Celestia looked towards Alucard with an accusation in her eyes, as he groaned and rubbed a hand over his face “Fine. I suppose I better stick around and teach the furball how to be a true vampire. Also stop worrying your flanks off! She is just not any low-rank vampire pretender! She is my vampire heir, like me, she can perfectly walk around during the day, albeit I will suggest getting sun-glasses, as the sun hurts like fuck when walking around during the day in my eyes. Also get her a cloak or some shit. Even I am more sensitive towards the sun. Trust me, sunburns are not fun!”

They gulped and nodded as Velvet said “S-So she can still be outside during the day… t-that is good I suppose.” Night nodding in agreement as he looked up at Alucard with worry and some suspicion in his eyes “But why do you need to be around?”
Alucard smirked and said, “If you want your daughter to be unable to control her growing powers, and possibly go into a blood-crazed rage or just accidentally kill someone because she does not know her own strength… you be my guest partner.”
Celestia grimaced and said, adding to his statement “While I hate it… I agree with Alucard. He is the best one to teach her about her new powers and status. As for her magic, from what I saw today, she has a lot of potential and I will be glad to take her in as a personal student to help her harness and control her magical powers.”

Alucard yawned and said “Well as fun as this is, I am bored. Gonna go for a walk now. Call me when the little furball wakes up!” As he stood up and strolled towards the door as Celestia gulped and said, “I really don’t think that sounds like a good idea!” but was ignored as he left, and she shuddered “Why do I feel like this is going to end VERY bad for some reason….”

Outside the room Alucard looked around with a smirk, glasses glowing orange as he said “Well look at what we have here. I have arrived in fucking Disney land! Let’s see what there is to do around this place!” as he began to walk.
He was within ten minutes stopped by a guard who stood in front of him, gulping as the pony said “H-Halt! State your business in Canterlot creature!”
Alucard raised an eyebrow and said amused, a maniac-like grin forming over his lips “Don’t know whether to kill you for thinking YOU can stop me, or let you go for having balls enough to actually try. Now get out of my sight.” As he stepped past the guard without him noticing, the guard blinked and turned around as he said again.

“HALT CREATURE!” as he plunged his spear into Alucard’s back, who looked down and saw the spear going through his chest and grinned widely.
“Oh, so you wanna play rough and dirty!” he grabbed the spear-head and pulled the spear through his body and threw it to the ground “Because I can certainly play rough!” he grabbed the pony by the throat and slammed him against the wall, the guard pony whimpering in fear and stared at Alucard with fear as the hole in his chest began to heal rapidly.
“Come on Private Pansy! Do it again! Show me your spear! IMPALE ME!” He said, eyes glowing dangerously red with an insane grin, as the guard whimpered, before going unconscious from fear. Alucard blinked in surprise, before groaning and dropped the pony on the floor with a loud thud-sound.
“And here I thought I could have some actual fun in this place. I am dying of boredom and I am already dead for Christ sake!”

He took a deep breath and said impatiently to himself “come on Alucard. Surely there are some ponies around here worth killing that Sunny-D won’t get triggered for.” He suddenly heard a frightened scream from behind him and turned around, smirking amused as he saw a frightened mare waitress, looking at him and the unconscious guard before screaming and running away, calling for the guards as he laughed and said, cracking his fingers “OH this is gonna be a blast!”

--- Back at Celestia ---

Celestia had just finished calming down the two worried parents once more after Alucard left the room, ensuring them that Alucard would not dream of harming a hair on the head of his vampire-heir, even if his teaching methods might be weird, insane and potentially dangerous.
She discussed some finer details with the parents, when they finally heard a soft groan from Twilight, who was slowly awakening.
She groaned and muttered, clenching her eyes tightly shut “T-Turn down the light!” with a tiny voice. Celestia frowned gently, seeing the signs of vampirism, but immediately closed the curtains, blocking the warm sun as the room got darker and Twilight sighed in relief, opening her eyes as she blinked and looked around “W-Where am I?”

Celestia smiled and said gently, keeping her tone soft and kind to not scare the filly “In my room in Canterlot Castle… Do you remember what happened Twilight?”
She blinked and looked at Celestia with big wide eyes, gasping as she said “P-Princess C-Celestia! I-I don’t r-remember it all… I-I remember hearing an explosion and then everything went white and then dark…” she shivered in fear “W-What happened?”

Velvet looked worried at Celestia and asked “Y-You think it is ok to tell her? She is so young…”
Celestia sighed and said with a soft look “Better she learns and accepts it now than it coming to haunt her later in life.” She turned to the filly, who now looked very nervous, eyes darting between her mother and Celestia.
Celestia smiled kindly to the filly with a sorrowful look “Twilight, when the explosion occurred, you were shocked into a magical outburst, losing control over your magic, which I must admit is quite powerful, and you destroyed the coffin you were tasked to open. Accidentally 3 pieces of the wood were launched at you, penetrating your chest.”

She gasped and looked down over herself, seeing no wounds as she said “W-What happened?! You saved me, didn’t you?” looking hopeful.
Celestia smiled gently, but said “No. It was a being known as Alucard who saved you. He was a being resting in the coffin, albeit nopony other than me knew of this, and when you destroyed his coffin, he was released. He saw you dying and decided to save your life with…. Questionable methods.” She grimaced and said with an annoyed sigh “I think Alucard can explain this best.” Suddenly a servant opened the door, looking paled and frightened as he said “P-Princess! I-I am sorry for the intrusion, but there is a problem! Some large creature wearing red clothes was spotted with an unconscious guard and a maid called for help! Now the thing is battling the entire royal guard and winning!”

Celestia’s eyes twitched as she inhaled deeply. Velvet’s eyes widened as she instantly covered Twilight’s ears as a furious scream sounded through the castle.

"ALUCAAAARD!”

Alucard grinned as he suddenly stepped out of the shadows of the room, a wide toothy grin on his face as the servant cried in fear and closed the door as he retreated, Twilight looking at him nervously, but also curiously.

Celestia tensed, noticing blood stains on his white gloves, and said with a glare “If you killed any of my guards, I will-“
She was interrupted as he said with a grin “Calm down Sugar-lips, I didn’t kill them. Gave them a good spanking, both figuratively and literally, but didn’t kill them.” She sighed in relief and nodded, still glaring at him.

He blinked and turned to Twilight, as he chuckled amused and said with a teethed grin “So little furball is finally awake. Does she know yet?” Celestia shook her head, as Twilight asked curiously.
“K-Know what? Are you the one that saved me?” She looked at him curiously, but also with a bit of fear, intimidated by his height and look, but also interesting in what kind of specie he was and how he saved her.

He cackled and said “I bit you! I bit you real good and turned you into a damned vampire! A blood-sucking vampire!”
Her jaw dropped and eyes widened in horror, while both Velvet and Celestia glared at Alucard angrily for just dropping it like that on her as she cried out in fear.
“I-I’M A VAMPIRE?!”

“And a top-class vampire, once you grow into your powers of course!” he said with a cackle, before saying with a smirk “Of course you have to drink some blood for that to happen.”
“W-What do you mean?” Velvet asked nervously.
“I mean that until the furball drinks some blood, she is a mere thrall, a sad excuse of a vampire that basically is under my command.” He grinned even wider, if possible.
Velvet tensed as Night Light turned towards the vampire with a pleading look “I-Is that the only way for her to get out of the control?” Alucard nodded with a smirk.

Celestia grimaced as she watched the young filly, who looked close to panicking, eyes wide in fear as she stared at the vampire with terror.
She sighed and instantly lit her horn as she said, “I will give her the blood.” As she levitated over a small knife from her drawer and said, looking at Twilight “Twilight, as much as you may not like this, it is important that you drink this blood if you want to be free of his control and gain control over your own powers, that Alucard will help guide you with.”
Twilight paled and whined nervously, nodding as ponies winced as Celestia cut her own hoof, blood starting to leak from the wound and collect, Alucard grinning widely, watching with deep anticipation as Twilight slowly approached, nervously sticking her tongue out and licked up the blood, before her eyes turned red suddenly and Alucard let out a loud laughter that sounded through the castle.

Author's Note

This chapter took longer than expected. Trying to write exposition, while trying to be funny is not easy, heavy emphasis on TRYING, and a couply of late-day shifts really hindered my time to write. Sorry for the wait.