Subject Rose Chapter 1, a BioShock + RWBY Crossover fanfic

Disclaimer: I do not own RWBY or Bioshock they belong to their respective owners.

Running running was all she could think of right now, running from the pack of Beowolves. Not long ago she was in the safety of her home away from the dangers of the night, she was laying on her bed restless, wondering why her mother had not come. Her mother's mission was supposed to last a couple days but months have past. During the first month her older sister decided to take her on a journey to find a barn, she didn't remember much as she had fallen asleep halfway.

Suddenly she heard a sound coming from the entrance of her bedroom door, without hurrying she gets up from her bed to put on her red cloak that her mother made and starts to investigate. She opens the door slowly and proceeds to walk down the hall. She then peeks from behind the corner and sees her father along with her uncle having a conversation.

Her father is a man with blond hair and lilac eyes who also has a tattoo on his right arm. He wears brown cargo shorts with a dark brown belt, black shoes, a bandanna on his left arm, and a brown leather vest over a tan dress shirt; While her uncle has graying black, spiky hair, with a red, tattered cloak, wears a gray dress shirt with a long tail, black dress pants, and black dress shoes. On his right hand he wears a ring on his right index finger, two other rings on his fourth finger, and a necklace with a crooked cross-shaped pendant surrounding his neck.

"Tai sooner or later she'll find out you need to tell her." said Qrow with a solemn expression.

"You know I can't do that Qrow it'll certainly break her heart." said Taiyang in displeasure.

"We need to it's the only way to ease the pain."

"She can't take it, she is not ready to face the truth."

"Well if your not going to do it then I will."

"Ruby is my child and I need to be there for her!"

"Look at yourself Tai! You need help and I'm the only one you got aside from Yang!"

"I don't need help I can manage on my own!"

"Tai please for the love of your wife, your kids, your family, your old team. Just tell her already!"

"I can't! I can't... Just tell her that her mother died in that mission."

"(Gasp!)"

The two adults turned to see Ruby no older than five standing there in shock with mixed emotions, tearing up after processing the information that was given to her. Taiyang lifted up his hand trying to explain to his youngest daughter what has happened.

"Ruby I-I..."

Too late Ruby bolted for the door and went outside.

"RUBY WAIT! IT'S TOO DANGEROUS TO GO OUT IN THE MIDDLE OF THE NIGHT!" yelled Taiyang as he ran to the entrance of his house searching constantly for his daughter.

"Well Tai looks like you screwed that one up." said Qrow plainly.

"Well are you just going to stand there or help me bring her back!" said Taiyang turning his gaze to Qrow.

"Don't worry she's my niece I'll help you find her." said Qrow trying to reassure him. 'Hopefully in one piece.'

'No! No! It can't be true!' thought Ruby running in the wilderness of Patch.

'Mommy promised she'll come back! She promised!' Clouded with negative thoughts she is unaware that she has attracted the Creatures of Grimm that are nearby.

'Maybe Daddy is being a meany and lying. Maybe Mommy is still here and is probably having a vacation somewhere. Maybe I will find her and bring her back home to teach Daddy a lesson.' While trying to be optimistic she heard a noise behind her. As she turns her head her silver eyes widened in fear.

"Grrr... RAAAAARGH!" The Beowolf roared and is soon joined by others in the pursuit of the little red riding hood.

"KYAAAAAAH!" Ruby screamed with fear as she then sprints for her life.

She knew what these monsters were she had heard of them from stories that her big sister Yang and her Mom read to her. She would always say that they weren't scary and she was not afraid of them but look at her now running away in fear.

(Pant!)

Ruby breathed heavily as she was running from her pursuers. She was quite fast for a girl her age but that wasn't enough to outrun the Beowolves.

As the Grimm were now catching up to her ready to chow down on the child, Ruby closed her eyes praying that her mom would save her. Then by some miracle her semblance activated for the very first time and just in the nick of time too as the Beowolf was about to bite her tiny head off, only for it to chomp on nothing.

Ruby opens her eyes to see that she was alive, not only that she was running really fast. She didn't know why but didn't bother to question it, all that matters is that she's glad to be alive. As she fled past the trees she reached the exit of the forest and stumbled upon a small cove.

Ruby was amazed at the scene two small cliffs resided at the ends of the arc, a large boulder standing tall on the sand near the left cliff, and the shattered moon reflected on the shallow water along with the stars.

"Wow..." said Ruby gaping her mouth as her bare feet touched the sand.

She always wanted to go to the beach but her Family was pretty much busy all the time and it made her feel lonely. Luckily Yang was there for her, they would always go to the playground in the park swinging on swing sets or sliding on slides. While in her thoughts she walked towards the middle of the cove while staring at the beauty of the ocean, hearing the waves gently move back and forth. She frolicked on the sand while giggling as if she had the time of her life. Unfortunately that didn't last very long as she remembered why she was out here, she ceased on what she was doing and looked down at her own shadow with no emotion.

'I probably should go back home. Daddy is probably worried ab-' She shook that thought off and replaced her emotionless face with determination clenching her hand into a fist.

'No I came out here to find Mommy and nothing is going to stop me. Once I find her maybe we will be a happy family again.'

Ever since her mother's 'sudden disappearance' her family fell into sorrow. Her father barely ate anything but told her and Yang that he was fine. Yang tried to make the family happy by trying to find someone else that their father knew but that didn't work well. Ruby herself was really torn up and didn't really understand why her mom was gone until now.

While in her thoughts she heard a twig snapped, as she turns her head, her expression was filled with horror once again. The Beowolves found her and were now approaching her cautiously growling, drooling, or whatever these mutts of the Grimm were doing.

Ruby backed away slowly as she was breathing heavily in fear.

"P-please d-don't hurt me." she pleaded as she picks up a stone to defend herself. The Beowolves weren't intimidated by the youth as they were getting closer by the minute.

"I'll do whatever you want. I-I can give you home a place to stay with me Yeah! I'm pretty sure Daddy won't mind though. A-and then I'll give you all the cookies that I have." Ruby said with a nervous smile trying to convince the pack of Grimm, but alas they just kept coming closer. Ruby did the next best thing she could think of.

"GO AWAY!" she yelled as she threw the rock at the leading Beowolf's head agitating it. The Beowolf gave out a roar and charge towards Ruby getting ready to pounce. Ruby went into a crouching position covering her eyes with her tiny arms waiting for the inevitable.

But nothing happened she looks up curiously to see that the Beowolf was impaled by a huge drill which caused it to go limp. She turns around to see a towering giant with some sort of scuba gear on.

The giant tossed the dead Beowolf aside leaving it to disappear in ashes allowing Ruby to see her savior. All she can make out was a strange yellow helmet with oxygen tubes emerging from the sides, lights that shined as bright as a lighthouse would, gloves and boots that are massive, a blue diving suit, two oxygen tanks sitting on his back, there was this triangle symbol on the back his left hand, and on his right arm was the huge drill that was used to kill the Beowolf.

The tall figure then gave a deep inhumane growl to intimidate the hounds. The Beowolves just simply replied with growls and snarls as they then charged forward wanting to avenge their dead brethren. The giant then charged towards them as well spinning his massive drill sounding like a horde of angry hornets. Ruby watched as the giant smacked one of the Beowolves to the side making it fly. One Beowolf foolishly tries going for a straight frontal assault only to get a hole in it's body.

Another Beowolf gets on the giant's back scratching and biting at the helmet. The giant uses it's free hand to grab the Beowolf's face and pulled it off his back. While it's head was still being gripped the giant electrocuted the monster, frying it until it's dead. The giant freezes an incoming Beowolf with ice and smashes it with the drill turning it into bits and pieces, he fries the next one with flames burning it into a crisp.

As more and more Beowolves came surrounding him, he creates a ball of wind infused with electricity and smashes it onto the ground creating a electric cyclone that engulfed the entire pack. As the cyclone disappears fading Beowolf bodies fell from the sky like rain. The giants body wasn't even affected by his own move and is standing there like it was nothing.

Ruby was stunned as she watched the giant take out all the Beowolves at once, but she snaps out of it when the giant starts to approach her. She was nervous when the giant stopped right in front of her, she was intimidated by how tall he was. He sort of reminded Ruby of one of those old timey divers that she has seen in stories. The giant then kneels down and lifts up a finger which is pointing at her. Ruby was confused what he was going to do as the giant's finger was slowly coming towards her curious face. What Ruby didn't expect was electricity coming out of the giant's finger knocking her out cold and that was the last thing she saw before everything turned black instantly.

As the little girl was knocked unconscious the giant picks her up with his free hand and starts walking toward the shallows. But stopped when he heard a blade unsheathing behind him.

"Where the hell do you think your'e going with my niece." Qrow threatened.

The giant turns around to see Qrow pointing his giant blade at him.

"I appreciate the fact that you saved her from those Beowolves back there but what I don't appreciate is you kidnapping her."

The giant just gave a inhumane growl as he gently puts Ruby down and turns on his drill.

"Now let's see what your made out of." Qrow said with a smirk as the giant charged towards him.

They clashed with blade and drill, swinging their deadly weapons while parrying at the same time for four times until the giant decided to jab Qrow but misses when Qrow moved his body to the right. Qrow uses this opportunity slash the giant in the abdomen, the giant held his stomach in pain and gave a inhumane wail. But that didn't stop him from blocking another attack from Qrow and returns the favor by using his free hand to punch Qrow in the gut sending him skidding back a few meters.

Qrow takes a moment to think as he then sees the wound he made on the giant disappear.

'Something is very off, he doesn't have any Aura yet he can heal himself and in order to heal yourself you got to have Aura. The same thing goes for his Semblance as well.'

The giant ran towards him. Qrow then transforms his weapon into gun mode and starts shooting at him but the giant was tanking his bullets as the giant then uses his free hand once again to conduct electricity at Qrow. Fortunately Qrow jumped out of the way, but he failed to realized that was just a distraction and paid the price by getting punched in the face by the drill. Qrow was sent flying towards to one side of the cove, he was glad that he had his Aura to protect him from becoming a mess and felt like he had half of it left.

As he gets up wearily he widened his eyes to see his niece laying there in the distance still unconscious. He gets right up and starts to sprint towards Ruby hoping to avoid the fight and run away with her but something stopped him and he couldn't move. He was then forcefully sent flying violently towards the boulder crashing into it hard making him cough out blood. While he had his back restrained he looks to see that the giant was holding him with some sort of telekinesis, he was then sent crashing to one of the cliffs then the other, he was then smashed onto the sand making a crater.

He wearily gets up and starts to transform his sword into a scythe, the giant spun his drill really rapidly and adds wind to it making it spin even more.

(Pant...)

"I have to admit you're really one tough nut to crack, but I can't let you take Ruby; Not over my dead body!" said Qrow breathing heavily.

The giant gave an inhumane roar as he charged towards Qrow at the same time Qrow did the same shouting his own battle cry. Running at very high speeds they ready their weapons to tear each other apart. As they collided they pass through each other, the giant's drill stops and Qrow was holding his scythe behind his back. They stood their for very long time in silence.

That silence was then broken when Qrow starts to breathe heavily and kneels to the ground while using the scythe as support. He felt a huge pain on his right side of the body and uses his left hand to hold it. He raises his hand to see his own blood.

'That Bastard must have ducked underneath my blade at the last second.' Qrow thought while clenching his teeth.

The giant puts his drill away and starts to walk towards Ruby. Qrow was witnessing him kidnap his niece right before his very eyes. While holding Ruby the giant gave another inhumane noise directed at the ocean. Nothing happened at first, but then suddenly a small sphere like submarine came out and was heading towards the giant. When it hit the sand it opened it's door allowing the giant to head inside.

'Ruby NO!' Qrow transformed his weapon into gun form and starts shooting.

Bang!

Click!

It was no use as the door had already closed and the bullets are deflecting off of the strange vehicle. As he ran out of ammo he then crawls in a futile attempt. He starts to feel unconscious and raises his hand at the submerging sub before everything slowly turns to black.

Qrow opens his eyes very slowly shielding them with his hand from the blinding sun. He sit's up and looks around to see he was in a hospital room. He then remove the sheets that were covering his body to reveal he was shirtless and his abdomen was covered with high amounts of bandages.

"Glad to see you awake." said a voice that startled Qrow.

Qrow turns his head to the left to see Taiyang sitting on a stool with a stern expression.

"How long was I out?" asked Qrow.

"Two weeks." Taiyang answered

"Tai I'm sorry I couldn't save her." Qrow said in guilt.

"No I'm the one who should be sorry. It was my fault for not telling her." Taiyang replied in sadness.

"Don't blame yourself Tai it's not your fault."

"No it is I should have listened to you. But now your here like this because of me."

Qrow takes a moment to breath turning his head.

"So what was that thing? It sure did number on you." asked Taiyang

"I would like to know as well." replied Qrow.

"As do I." said Voice.

The two adults turn their heads to see a middle aged man with tousled gray hair and thin brown eyes. He has a light complexion and sharp facial features. He wears shaded glass spectacles and a dark-green scarf with a small, purple, cross-shaped emblem on it.. His outfit mainly consists of an unzipped black suit over a buttoned vest and green undershirt. He also wears black trouser shoes and long, dark-green pants.

"Ozpin what are doing here?!" said Taiyang in surprise.

"I was simply wondering why one of the most skilled hunters alive hasn't reported in recently and somehow ended up in the hospital." said Ozpin very calmly.

"Oz I can explain." said Qrow.

"Do tell."

Qrow then starts to tell his story in detail from where he and Taiyang were discussing whether or not to tell Ruby about her mothers death all the way where a man in a large diving suit took her away.

"I see... We all mourn over Summers death and I'm sorry to hear that your daughter got kidnapped Taiyang." said Ozpin turning his head to the blond.

"I'm fine Ozpin. I've been through a lot lately I'm sure I can handle it." replied Taiyang as he glumly looks down at the floor.

"Qrow you now have a choice to make." said Ozpin as he turns his gaze back at the scythe wielder.

"You can either abandon you're post to search for your missing niece."

"But Oz I ca-"

"Ah Ba-Ba let me finish... Or you can continue working with the society at the same time look for leads about this man in a large diving suit."

"Thanks Oz..."

"Now I have an important meeting within the next hour and I don't wan't to be late. I hope you get well soon Qrow."

As the headmaster of Beacon Academy exits through the door the two adults resumed their conversation.

"Does Yang know about this?" asked Qrow worrying about his other niece.

"Yes I did but lets just say she won't talk to me for a while." said Taiyang.

Two weeks earlier...

Bang!

Click!

That was all Delta could hear before submerging into the sea with the little girl with a red cape. The child was sleeping unconsciously in his left arm yet she looked peaceful. The large man was then reminded of Eleanor, his daughter whom he lost in the civil war months ago.

Before he went up to the surface to retrieve the little girl it all started ten years ago when his daughter was only seven. They would always do their daily routine searching for ADAM which lay in the corpses of deceased Splicers. When the night comes he would carry his exhausted child to the vent that she sleeps in. That lasted for a while maybe at least three years before those people who created him decided that Eleanor didn't need to gather ADAM anymore.

But there was one huge problem they've encountered. They couldn't separate Eleanor from the Big Daddy no matter how hard they tried, someone will always lose a leg. Even though they finally managed to get her away from Delta they've had encountered another problem where they couldn't remove the slug that Delta didn't know about from inside her abdomen. So they had no choice but to leave the two together.

Over the next few years Eleanor started to experience some changes if you can call it that. While she could not produce ADAM herself anymore. She has seen nightmares every night and would go on a rampage. Luckily Delta manages to calm her every now and then before she could mutilate a Splicers manhood. It wasn't just her though other Little Sisters who couldn't have the slugs removed just like herself would act the same way. It was very fortunate for the scientist that they had somehow manage to calm their savage like behavior or else they would have to deal with a flooding city with Ocean type Grimm invading.

The scientist soon discovered that the former Little Sisters who couldn't have their slugs removed grew insanely about seven feet tall. They've also acquired the abilities that came from the ADAM. While no one in Rapture can manifest Aura they've used ADAM as an alternative but look at where that got them a city full of crazy drug addicts. So anyway one of the scientist decided that they can reuse the little girls who had turned into teens as a new law enforcer.

They began project Big Sister; while they can no longer produce the juice that gives them their powers the scientists used new Little Sisters that came from the orphanage. While a lot of Big Sisters are paired with the new Little Sisters, some still stay with their adopted father. Delta and Eleanor being no exception worked together as a great team bringing some sort of justice around the city.

A few more years later the war broke out.

Delta and Eleanor were sent to kill the rebels that plan to take control over the city and expose it to the outside world, mostly it was either the Splicers or the drug dealers that were responsible. They then came across Brigid Tenenbaum one of the scientists who've discovered the ADAM and the one who made The Little sister program. Apparently she was working on a cure for the ADAM that was plaguing the minds of the Splicers and is also trying to find a way to restore the former Little Sisters who couldn't had the slugs removed from the body as well as the new ones.

Her partner was an AI called the Thinker who had shared the same thoughts with the female scientist. Tenenbaum then gave Delta the powers he has today. After gaining the new abilities he met Sigma a Big Daddy like himself but didn't need to have a little sister at his side. Sigma would occasionally aid Delta and Eleanor with some of their missions but he mostly spends his time in the lab.

Eventually the war was soon over, and their side has won but it came with the cost of their comrades lives. Andrew Ryan, Subject Omega, Booker Dewitt, Elizabeth Comstock, the scientists, and of course Eleanor. Her death happened so quickly when they met her real mother Sofia Lamb. When they've first encountered her, Sofia had hypnotized Delta and restrained Eleanor with a couple of Splicer Brutes. Sofia then went on about some plan she had with a guy named Fontaine and how Eleanor became a Little Sister.

She then pointed a gun at Delta pulling the trigger, but Eleanor broke free from her captors by teleporting right in front of her father taking the bullet. As she slowly fell to the ground Delta snaps out of his hypnotized state and ran towards Eleanor catching her. As he holds her in his arms Delta removes her helmet to reveal her face. Eleanor reaches out to Delta with her arm which he grabs holding her hand. Eleanor told him how happy she was to be his daughter and her final wish was that they can go to the surface together to see the wonders of Remnant.

In her final words she said that she will always love him before losing her grip and closing her eyes. Delta then gave an inhumane roar filled with anger and rage. He violently murdered Sofia and then the splicers that were with her. His rage was so loud it can be heard throughout Rapture. This of course attracted the Creatures of Grimm; breaking into the weak spots of Rapture they've attacked anything in their sight but their main goal was Delta. Unfortunately for them Delta took them all on killing every single one that would go near him or his deceased daughter leaving some Grimm alive to retreat.

Delta suddenly lost his conscious after scaring the last Grimm away. When he woke up he was in the infirmary and saw Tenenbaum. She explained that Subject Sigma and Epsilon carried him and his deceased daughter here, she also explains about the protection bond he had with Eleanor and is soon doomed to die of loneliness. The Thinker joined the conversation by saying that they may had won the war but most of Rapture's population is wiped out and they have no choice but to reveal Rapture to Remnant in order to increase their chances of survival.

But there was one problem, the Thinker calculated that they can't do it without the Big Daddy because he thinks that Delta can lead them. So they then made preparations to find a way to help Delta live more longer but they had to give up and decided to find another way. And so Tenenbaum brought the Little Sisters who were cured from ADAM to the surface and starts an orphanage meanwhile the others stay down underneath the sea to maintain order.

Before Tenenbaum left she took Eleanor's corpse to the surface so she can bury her. At first Delta objected to the idea but realized that his daughter didn't deserve to die in this underwater city. He gave his final goodbye to his daughter and walked to his quarters all depressed.

During the months without the company of his daughter Delta would live everyday life in sorrow. His friends worry for him knowing about his condition. Then one night he saw Eleanor in his dreams. She gave him visions of a young girl wearing a black skirt, a sleeveless hoodie, and a red cloak. Soon on the very next day Delta headed towards the nearest Bathysphere and made his way to the surface.

Once he reached the shallows of a small cove, he decided to exit his Bathysphere from there. As he emerged from the ocean, Delta took a look around at this new surrounding. It was just like those scenes he had seen in Eleanor's picture books. While amazed at the sight he heard rustling coming from the bushes. Thinking quickly Delta hid behind a huge boulder that was conveniently there.

Peeking from the rock Delta saw something or rather someone stumbling from the bushes. It was the girl he had seen from his vision. Delta didn't know why Eleanor led him here as he watched the girl start playing with the sand laughing with joy. It warmed his heart to see something innocent being happy. But the little girl then stopped, looking down at her own shadow in sorrow. He was surprised at the child's sudden change in behavior.

Before he could think why she was acting like that, creatures in black suddenly appeared, frightening the young child. They have pitch-black fur and red eyes. On their face is a bone-like mask with red markings, and they have bone spikes protruding from their arms, back, and knees. Their fingers and toes are tipped with long, sharp, white claws. If Delta remember correctly from the books he had read with Eleanor they were called Beowolves.

"P-please d-don't hurt me." pleaded the little girl picking up a small stone.

"I'll do whatever you want. I-I can give you home a place to stay with me Yeah! I'm pretty sure Daddy won't mind though. A-and then I'll give you all the cookies that I have." She tried to convince the heartless monsters and it was no use.

"GO AWAY!" The child yelled throwing the stone in defense but it just annoyed one of them.

The Beowolf charged at her with intending to end her life. Thinking quickly once again Delta pulls out his drill and ran towards the beast. In the nick of time Delta manages to impale the murderous Grimm saving her. As he tossed the limping corpse away he gave an inhumane roar telling the Beowolves to back off or else they'll meet the end of his drill. They just replied with growls and snarls as they then charged at the Big Daddy.

Delta activates his weapon and ran at them as well. He made a hole on the Beowolf that recklessly tried to do a frontal assault. He Electro Bolted the next one that got his back, Winter Blast the third and smashed it to pieces with his drill. For the fourth he burned it into a crisp with Incinerate!

More and more Beowolves surrounded the giant giving him no escape. Delta gets creative by combining Cyclone Trap with Electro Bolt creating a ball of wind and electricity. He holds it in for awhile before smashing it onto the sand. A huge cyclone forms engulfing the entire pack of Grimm. While in the man made storm Delta was unharmed but the Beowolves were sent flying in the air while being electrocuted to death.

As the storm clears Beowolves started to fall like rain, fading away into ashes. Delta then starts walking towards the girl who was unsure what he was going to do next. While walking he starts to think.

'Why? Why would someone so young, so innocent be out here all alone.'

He stops and looks down at her curious face.

'Poor little thing you don't deserve to be out here in this dangerous world.'

He then thought of an idea but it was going a risky one.

'Don't worry I'll take you to a safe place. Far away from those who mean you harm.'

He kneels down and lifts his forefinger and shocks her unconscious making sure it doesn't kill her. As he was about to leave; he was stopped by a blade unsheathing.

"Where the hell do you think your'e going with my niece." Threatened a voice.

Beep!

Delta's thoughts were interrupted by the sudden sound of the alarm. It indicated that he was almost back at Rapture.

'Welcome to your new home little one.' Thought Delta even though he can't communicate with the child.

Through the Bathysphere's window he sees the underwater city in it's former glory despite the destruction and rubble that was there.

End Chapter

Hello People this is my second story that is an AU where Bioshock is in the same world as RWBY. Even though I gave a lot to explain what is happening but I can't help but feel that I'm missing a few details. So I'm asking you the reader to tell me what I forgot.

So anyways if you have a question or comment leave a review and I might answer next chapter.