AN: I know what you all are thinking, another story, really? But I have a good excuse for starting this story. Tokyo Ghoul is epic. Nuff said. I have begun watching the series and loved it. It gave me many ideas for fanfictions that I really wanted to explore. I am basing Lilith ( Fem-harry) off of a Half-Ghoul and Scylla from Smite. I am considering doing any more xovers but none catch my interest at this time for this series.

In my classic style this will be an abandonment fanfiction. So James and Lily are alive. However this is not going to be a case of the wrong boy who lives, Lilith's brother will be the boy who lived, and the family sent Lilith away. I know that is slightly cliché but I have wanted to do another abandoned Harry alongside The Sorcerer. However, like the theme where Hibiki is purely light, Lilith will be pretty dark.

But anyway, warnings include: Blood, gore, ghoulism, abandonment, bashing of idiots (AKA 90 percent of Wizarding Britain), and some more blood to add onto the copious amount of blood that the first warning entails.

I do not own Harry Potter or Tokyo Ghoul. I also do not own any other references I include that are not originally thought of by myself.

Now without further ado, here is my most likely darkest story yet:

The Blood Hound

Prologue

In the back streets of London a figure walked down the dark alleys. Judging by the height, the person would appear to be a small child, of eight or nine years old. The kid was completely covered in a black rain coat. No one would find such a small figure threatening until they noticed the being's exposed eye. The sclera was completely black while the iris was blood red.

It was the eye of a ghoul, arguably one of the most dangerous beings in the world.

It is incredibly rare to find one outside of Japan, where the CCG ruthlessly prevents any ghoul from escaping the country. However, whether by fluke, fate, or accident, one ghoul managed to be born far away from Japan and instead was born in Britain.

However, the child was not always a ghoul. In a stroke of chance, paths were diverged and the lines between worlds were blurred as one mistake.

One twitch of the hands.

Two wandering eyes.

A mistimed turn.

Each of these innocent events managed changed the fate of multiple worlds.

The changes from large to small will cause people who were fated to remain separate to meet, possible futures to fall, and new bridges to be built.

All because of a simple car accident.

An accident that changed the life of a young girl for the rest of her days.

One small neglected and abandoned girl, would be the lynchpin of many of the events to come.

For the good or bad, the world would have to prepare for the arrival of a harbinger of change.

They would be unprepared for the girl known as Lilith Potter;

The Blood Hound of London.

(London – 1998)

The day had started off innocently enough for the crime syndicate "The Whigs." They extorted money, killed people for money, and had managed a large profit a few days ago from killing a well-known doctor. The police had been bribed and their connections in the government smoothed everything over.

Yes, everything was going perfect for the crime boss William Whig. He was untouchable, rich, and controlled the London underground.

That was until the screams and gun shots started. The entrance of their base was in a turmoil of sounds as whatever had invaded the building drew nearer.

William motioned to the guards in the room to cover the door and pulled out a machine gun himself. His hands trembled as the bullets and screams stopped.

A shadow appeared in the window of the door and he screamed fearfully "Shoot him down!" The guards not having to be told twice fired all their bullets at the door, hopefully killing whatever had stormed their base.

'Click' William was startled as he heard the telltale sign of his gun run out of bullets, looking around he noticed all of his guards had also run out of their precious ammo.

It was quiet for a second but before he could express his relief the door was smashed inward and one of his grunts was pushed through the now bullet ridden door.

The man was barely recognizable, bullet holes riddled his body as well as great bite marks that had come from what appeared to be a monster.

Before they could even react a young voice laughed at them from the shadow of the doorway "Ha-ha-ha! You really should improve the glass on your doors Mr. Whigs! Wouldn't want to cause an accident would we?"

A small girl emerged from the door. If Whigs had not been so scared he would have called her adorable. Her hair hung down to her neck and was dark red in color. Her eyes were almost luminescent green and almost glowed ominously in the dark room. She wore a black raincoat with a high color and had a half mask covering her mouth. Instead of a mouth design on the mask it had a zipper instead in the shape of a smile.

But none of that mattered to the five men in the room. All that mattered was the four blood red demon hounds that emerged from under the rain coat surrounding the girl. The bodies of the things had the appearance of snakes made out of bloods with the head of a wolf on each extra appendage.

William pointed his gun at the girl, momentarily forgetting he had already run out "W-who are you!?"

The girl grinned and in a flash of red his four guards were without heads. In a great spurt of blood they all dropped to the floor and each wolf head swallowed their treat and almost seemed to purr in content.

The demon child walked up to him and seemed to tower over him despite her short height before speaking "You are William Whigs, crime boss of the gang "Whigs" and are the cause of multiple cases of death, blackmail, extortion, drug smuggling, and prostitution."

William did not even know how the girl knew, much less understood, what the things she was saying are. She should be at the age to play with dolls and princesses, not this! Her next words chilled him to the bone.

"But more importantly, you are the one who murdered my father, Doctor Samuel Cain."

Whigs screamed as the zipper on the girls mask unzipped and she approached him with hunger in her eyes. He fell down and stared up at his would be killer in horror "What are you!?

The girl looked down at him and he now noticed that one of her eyes was no longer green, it was red with a black sclera.

The eyes of a devil.

The four wolf heads reared up and the girl answered simply "I am Lilith Potter Cain, and I am your executioner.

The four heads dashed forward and sickening crunches could be heard as the girl enjoyed her meal.

(London- Midnight)

Lilith dangled her legs off a tall building and watched apathetically as police men inspected the scene of her rampage. They would never link the massacre to her, the prodigy daughter of the now deceased Samuel Cain, premier Doctor of one of London's finest hospitals.

She felt tears run down her cheeks as she remembered when she had first met the doctor.

And how he was the first one to acknowledge her existence.

She closed her mismatched eyes and lapsed into her memory.

(London Hospital – 1996)

"Get her to the emergency room! She is in critical condition, prepare blood transfusions! Get her medical records!" The hospital was in a rush of activity. Just recently a horrible car accident occurred on the freeway, a drunk truck driver crashed into a civilian car, killing everyone in the collision except one young girl.

However it was up to them to make sure that the tragedy wasn't all encompassing. The girl was gravely injured and would most likely require an organ transplant.

"Sir, the girl's name is Lilith Potter, age six, she is blood type AB. She has no known diseases other than short sightedness."

The doctor nodded and began barking orders to his assistants as he prepared for surgery. "Poor girl, her face will be horribly scarred after this…" The nurse sighed softly and returned to her paper work, giving a quick prayer for the little girl.

(Emergency Room – Two Hours later)

Doctor Samuel Cain sighed as he rested after a successful organ transplant. They were short on stock but managed to find a match for the poor girl with an Asian child. The organs came from a visiting family who died of unknown causes. They had been visiting from Japan and had signed on the organ donating program if something happened to them.

Fortunately for the young girl sleeping on the hospital bed the youngest of the family had a matching blood type.

Unknown to the Doctor who had left the room the young girl's right eye opened quickly, revealing a blood red iris and black sclera. The eye looked around wildly before closing. The being was content.

For now.

(One Week Later)

Doctor Cain frowned as he read his young ward's medical record. If he was feeling morbid he would say it was a good thing that the little girl was in the car crash, for it revealed a terrible case of child neglect and abuse. The now identified Dursely family would have been looking at life in prison from what the reports in front of him, and the police reports claimed. Child abuse, child starvation, child slavery, neglect of education.

If one looked at it the car crash may be the best thing to have ever happened to the young girl.

Unfortunately for the girl it was looking like she would have to go to an orphanage. Not necessarily a bad thing, as standards for orphanages have taken a steady rise in standards ever since the incident of child neglect from Wools Orphanage forty years ago.

However, this was not a normal case. An orphanage, no matter how nice, would crush the small abused girl. He would not let that happened. He himself had been a case of child abuse when he was eight, and he refused to let another child go through what he did if he could help it.

He had already made up his mind, he would adopt the child if she would have him. More determined than ever he continued to walk down the hallway, unaware of the fact that his future actions would change the course of the world forever.

(Room 36 – Lilith's Room)

Lilith woke up slowly, feeling more comfortable than she had ever been in her life. The bed under the stairs was hardly what anyone would call comfortable.

She snuggled into the covers more and sighed contentedly, before she realized that she was in a strange bed that Uncle Vernon would never let her sleep in.

Opening her eyes hurriedly she looked around. The walls were white and there were many strange machines making beeping noises attached to the bed she was laying on. Everything was blurry but that was to be expected since she did not have her glasses. She groped around the side table and eventually found her wide round wire rim glasses that her aunt had reluctantly bought for her.

Now with the ability to see clearly she could look around the hospital room she was laying in.

She tried to remember how she got here and all she remembered was sitting in the back of the Dursley's car when a sudden bright light blinded her. The next thing she knew was waking up here.

Before she could think of her situation any more a nurse came in with a tray of food. "Oh you're awake. I will leave this here and inform the Doctor" said the nurse kindly to the frail girl sitting on the bed.

Lilith stared at the woman for a moment, wondering why the lady was giving her that expression "Um, thank you?" She was very confused, no one had been even remotely kind to her before, and the nurse had given her more food than she had eaten in the past month.

The nurse smiled kindly again before exiting, presumably to get the doctor. Lilith looked down at the food curiously. There was a bread roll, chicken nuggets, mashed vegetables, and some chocolate pudding. She had never been able to eat any of this, since the Dursley's barely fed her anything.

She hesitantly picked up a fork and speared a nugget and brought it to her mouth. It did not smell that appetizing but Dudley loved these things so they must be somewhat tasty? She took a bite and nearly puked at the flavor. It was absolutely disgusting.

However, she had learned to always eat food if it was available, no matter how bad it may taste. She forced herself to swallow and continued eating. Everything tasted awful but she eventually managed to finish.

Unknown to her, was that her magic was the only thing allowing the food in her stomach to be digested, if she had been a normal ghoul she would have been throwing the food up almost immediately after eating it. Instead the magic, recognizing that she had eaten something harmful to her body fought against the invader and vanished it before it could reach her stomach.

Eventually after she finished a man walked into the room. He was tall, with blond hair and wire rimmed glasses, to finish his attire he wore a normal doctor's uniform. But what was curious to Lilith the most about the man was the kind smile he was giving her.

Barely anyone in her short memory had given her such a kind expression. "I am glad to see you awake young lady, you gave us all a fright when you were brought in." Cain decided to broach the topic of her relatives' deaths lightly. He did not know what state her mind was currently in.

Lilith nodded, still confused to why the man was showing her kindness. Doctor Cain noticed her befuddled expression and sighed deeply. He recognized that look from back when he was a child, always surprised and elated when anyone showed him the slightest kindness. He sat down in a chair near her bed and began explaining what had happened to her in the past week "You were in a serious car accident Lilith, but I'm afraid your family are…gone." He finished lamely. He did not want to ruin the girl's innocence even further by telling her that her remaining relatives were dead.

Lilith tilted her dead slightly and considered the Doctor's words. Despite being six she had always been a perceptive child. She understood that her Aunt, Uncle, and cousin were dead. She wondered if it was alright that she was feeling relief instead of sadness. She looked back up at the doctor and smiled slightly "I see."

Samuel nodded, he could tell the girl understood his words better than he had thought, abused children regularly have a better perception of the world at earlier ages than other kids. He brought out some papers and continued his explanation "Unfortunately, your uncle's sister, Marge Dursely was arrested a few days ago for illegal dog breeding. We cannot find anyone from your father's side of the family as well."

Lilith frowned, the Dursley's had always threatened her with the orphanage; she guessed she would finally be sent there after all, even if her torturers were dead.

Doctor Cain smiled reassuringly at the small girl "Normally you would be sent to the orphanage but we have already found someone willing to adopt you." He spoke softly, wanting to see how she would react to the news that someone already wanted her in their lives.

Lilith looked at him with wide eyes "Someone wants me?" She spoke hopefully, no one had ever wanted her.

Cain nodded, pleased that the girl was open to adoption. "Yes, I want to adopt you Lilith, if you will let me."

Her eyes filled with tears, Lilith launched herself out of the bed and hugged the doctor, for the first time in her short life knowing that somebody finally wants her.

(Cain's Apartment – One week later)

It took a week for Lilith to fully recover from the car crash, and in that time Samuel had managed to finalize the adoption process and was now the official guardian of Lilith.

"Since you adopted me am I now Lilith Cain?" the young girl looked up innocently at the Doctor.

"If you want, if you are attached to your last name you can have it as your middle name, you can be Lilith Potter Cain" Samuel was not that attached to his last name anyway, it was the names of his drunkard of a father and a neglectful mother. But perhaps he could redeem the name with his adopted daughter.

The doctor looked at the clock and noticed it was time for lunch "How about we fix lunch for today? How about pizza?" He noticed right away the girl grimace at the word pizza and was amazed, what kid did not like pizza?!

He opened his fridge and frowned at the selection "Well, why don't you pick something that looks appetizing to you? We should learn what you like and dislike before I go to the store!"

Lilith looked up at the fridge and was amazed by the assortment of food. It was so much more than what the Durselys had ever offered her. The hospital food had all tasted disgusting to her and she only felt hungrier after each meal.

If it wasn't for her magic, she would have begun her descent into the madness that all ghouls experience when they do not feed for a long time. Unfortunately, her magic reserves would not last her forever and she was already starting to feel the pangs of hunger.

She examined each item eagerly but frowned when each one smelt bad and gross. The only thing that looked appetizing in the fridge was a white box in the freezer. It smelled so delicious to her. As she continued to look at the box her right eye turned from a bright shade of green to a vicious red with a black sclera. "That one smells good" she pointed to the box and smiled up at the doctor.

Samuel looked at the small girl and he had to use every self-control exercise in the book to not recoil in horror. Every doctor was given training on how to spot ghouls in case any managed to get past the boarder of Japan. The white box in the freezer contained blood that he was going to donate to a hospital for the less fortunate. The girl's eye and her apparent appetite for human blood were clear indicators that the girl was, at least partially, a ghoul.

However, he knew he could not freak out and scare the child. She obviously had no ill intentions to hurt him and if she had been born a ghoul then the Durselys would have met their end much sooner. He remembered a recent study that had been conducted from the observations of the CCG on a ghoul known simply as Eyepatch, they had learned that he had once been human before a doctor transplanted the organs of a ghoul into the boy, transforming him into a one eyed ghoul.

In fact, that very ghoul had become a leading figure in the fight against corrupt ghouls. Or, at least that was what the limited information he could gather from the scarce news that exited Japan nowadays.

Samuel took out one of the bottles of blood and offered it to the group who began to drink it happily, as if it was the best thing she had ever tasted. He could only watch morbidly as the girl unknowingly drank human blood like a vampire.

He had a lot of explaining to do to an innocent six year old.

(2 years later)

It had been two years since Lilith Potter had been adopted and became Lilith Cain. She was now 8 years old and was completely cured of her malnutrition at the hands of the Durselys. The past two years had been some of the best of her life. Her father, Samuel Cain, had helped her get caught up in her studies and even skip an entire grade due to her intelligence.

She hoped that one day she could work alongside her father in the hospital one day after she finished college.

Lilith spent the last two years relatively normal compared to her past years of neglect. The only problem the father and son faced was the fact that she was not human.

Samuel was able to discover that he had accidentally transplanted a fleeing ghoul's organs into the girl instead of a normal humans. This had changed the girl into what is known as a "One Eyed Ghoul." The girl had been very lucky, if it had been nearly anyone else she would have been reported to the government faster than she could blink.

Fortunately for her Samuel was a doctor and understood her plight more than others in the same situation. With his connections to the hospital he was able to provide meals to his daughter of bodies from the morgue in the hospital.

She did not have to eat often, once per week was enough to keep her sustained.

It was not a perfect solution, but it was the only ethical way they could find to provide her with food. They had tested many different foods extensively and found a few that she could tolerate better than others. Apparently coffee was perfectly fine with her, along with certain brands of tea.

In addition pork was also a poor substitute for human meat. Samuel explained to the young Halfling that the physiology of a pig was very close to that of a humans, which was why she could actually digest and taste the animal meat.

Despite her status as a half-ghoul for the first time in her life Lilith was happy and content with her life. There was no more Durselys and she now had a father that cared about her.

Unfortunately it did not last.

After going out for dinner at a restaurant that served delicious pork dishes, the only dish besides coffee that they could both enjoy, they had taken a short cut through an alley to make it back to their apartment.

It was nearing ten o clock when two men rounded the corner and without a word shot her father in the heart.

Time seemed to slow for the eight year old as her father fell down to the ground. The red liquid she enjoyed so much leaking out of him as he stayed on the ground unmoving.

The two men in dark rain coats approached her and one pointed his gun at her "Sorry kiddo, no witnesses. It's nothing personal, just business." As the man prepared to pull the trigger the girl looked up at him with furious eyes. But that is not what stopped him, what stopped him was the right eye of the girl had transformed into the eye of a devil.

'Crunch!'

A loud crunching sound echoed through the alley as the gun man turned and saw a red wolf head bite his cohort in half. He was about to scream in horror before another wolf head descended on him as well, brutally ending his life.

As she barely registered her killing of the two henchmen she rushed to her father's side and tried to stem the flow of blood.

Samuel coughed up blood and tried to smile at the girl "I-its alright Lilith." They both knew he was lying.

Lilith felt tears pour from her eyes as she fruitlessly tried to stop the death of her precious person "Please! You can't die! I need you!"

Her adopted father smiled sadly and brushed his hand over her cheek, wiping away a tear "Do not worry princess, everything -cough!- will be alright. You are a strong girl, much stronger than I am."

She shook her head violently "No! You just can't die! Please!"

Samuel smiled sadly "Princess, please…listen to me."

Lilith stopped hyperventilating and tried to focus on her father through her tears.

"Do not fall into the darkness over my death. We both know you are strong and have the potential to be so much more. Do not let your other side control you. You will do so much for this world. I only wish…I could…help you…on your journey."

With those words, Doctor Samuel Cain, premier surgeon of Britain past away in the arms of his adopted daughter.

Lilith stared blankly at the kindest man she had ever known. The only one to ever care for her in this bleak and horrible world.

Now he was dead. Just like her parents.

Everyone she ever cared about just ended up dying.

Why!? Why did she deserve this torment!

The four dog headed beings attached to her lower back nuzzled up against her and she took comfort in their presence.

It helped direct her thoughts to what the men who killed her father had said. They said it had been business.

That meant that there were others involved in her father's death.

The four wolf heads howled to the moon as the only Ghoul ever to exist outside of Japan stood up.

She would hunt them down.

One.

By.

One.

They would pay in blood for what they took from her.

She looked down at the men and took one of their rain coats and put it on, barely registering it refitting to her size and removed the second man's black face mask and tied it around her mouth.

With her desires a zipper appeared in the leather mask and it formed a sinister grin as in the darkness her eyes lit up green and red.

They would be given no mercy.

(End Flashback – London Cemetery)

Lilith stood in front of her father's grave and placed a bouquet of flowers on the ground and smiled softly "I know you would not approve of what I did father. But I avenged you. I know this is not what you wanted but it hurt so badly." She felt herself tearing up as the water poured from her eyes onto the ground.

"But I achieved justice and came into my powers as a ghoul. I can only hope you will be proud of me. I will not use this power to do bad things. I will get stronger to protect people like you father!"

She continued to talk to the grave for a long time. Telling her deceased father about how she was going to an orphanage, how she wished she had been able to save him, and that she would always love him.

With a heavy heart she walked out of the cemetery, to meet whatever fate had in store for her.

AN: And that's that for the first chapter of this series. For people waiting for the Sorcerer, I expect to get the next chapter out tomorrow. I plan to alternate when I update each story. I do not want to spend my time all on one story like I did with the Forgotten Doctor.

Anyway I hope that everyone enjoyed the first chapter and if you have any questions, recommendations, or reasonable criticisms, you can PM me or post a question in the reviews. Thank you ^_^.