House Tennyson

by Barbatos1998

Thrust into a world by the request of Professor Paradox Ben has to find a way protect the people of this plant from the great other. But like any adventure this is no simple task join him as he helps the inhabitants of this world from the looming threat and perhaps save them from themselves.

Chapter 1: Arrival

AU NOTES

Welcome readers this is my first fanfic and this idea came to me a while ago when I was reading a bunch of G.O.T and Ben 10 and My Hero academia crossover fanfics and thought about how fun would It be If I made a fanfic about my childhood favorite show and make a crossover fanfic with G.O.T. So I started writing for the hell of it and for all of you thinking that Ben might be to OP for a medieval world I thought of a way to nerf him that way I can keep the story interesting. Any that's all for now hope you enjoy

DISCLAIMER: I don't own the Ben 10 series and I Don't Own Game of Thrones

"Speech"

'Thought'

"Omnitrix"

Bellwood

In the town of Bellwood, we find our hero Ben Tennyson lounging in his room playing video games to pass the time but does not seem to enjoy himself "ughh I'm so bored that I can't even enjoy some sumo slammers" out of boredom he tossed the controller and stared up at the ceiling 'might as well go for a walk'.

Exiting his home he went for a walk but as time passes during his walk he reminisced about his past battles to when he was 10 years old, got back to being a hero during his teens and getting an upgrade to the omnitrix, obtaining the ultimatrix, and finally his last battle against Dagon/Vilgax and getting a new omnitrix courtesy of Azmuth.

Ben rolls up his sleeve and gazes at the new omnitrix admiring its design that resembles a digital wristwatch. Its faceplate is now square rather than round and has a white, green, and black color scheme. Even after getting the new watch a year ago he hasn't been able to use it much frequently due to lack of crime and alien activity that will get his attention due to more plumbers being assigned on earth after the incident with the Esoterica's and Dagon making It less prone to alien threat which lead to the trio separating leading Gwen to pursue college and Kevin following her since he got a job as a mechanic near her campus.

As he continues his walk around the neighborhood a bright light suddenly appears in front of him for a brief moment before dissipating revealing a middle-aged man wearing a lab coat and protective goggles hanging from his neck. Putting down his hands covering his eyes from the light Ben looks in front of him "professor Paradox, what are you doing here?" questions ben as Paradox rarely visits him unless there is trouble that needs solving. "Hello Benjamin it has been sometime since my last visit" greeted the professor "Let's walk and talk Ben" not giving time to give Ben a chance to ask questions he turned around and let him come to his side

"So Benjamin how are things with you after your battle with Dagon" asked the professor "Well ever since I turned every Esoterica back to human things have been quiet lately, even after a year there have been some crime here and there but not much" He responded but with a bit of boredom coming from his tone. "That's good to hear Ben and as for the reason I am here is because I need your help" Ben stopped walking and gave the professor a confused look "What kind of help would you want from me?" asked ben as his curiosity peaked "Well it's not exactly I that needs help but rather another world from another Universe." Paradox said as he turned around and faced Ben. After hearing that Ben grew excited at the possibility of doing something exciting and doing hero work at the same time since nothing major has happened in a year this is a good opportunity for him.

Not wasting anymore time Ben asked for the details "So what exactly does this world need help from" Paradox sitting down to a nearby bench Ben followed after "Simply put there is a being or rather beings from that world too powerful for the natives to resist, and while I saw their future they eventually fought back and won but…" He paused for a moment and looked down feeling sorrow for the many deaths he has witnessed in that universe.

"But?..." asked Ben urging the professor to continue his tale "But their victory cost them too much casualties, many lives have been lost numbering in the thousands either from fighting the threat, or themselves, and even after defeating their common enemy they still fought each other over power and politics." Shocked by the number of deaths from the threat have caused Ben was now determined to help this world but the last part confused Ben so he decided to ask "What do you mean themselves, why would they fight each other if the threat's already gone?"

"Because the world that needs help is that of a Medieval one and where the majority of people in power are either greedy, evil or too drunk on power to even care about the people they rule over" While Ben didn't expect to help a world with a feudal system he had no experience dealing with something medieval except the Forever Knights but they had alien tech so that doesn't count. Ben's brows furrowed as Paradox described the people in power since some of the deaths are caused by them 'Sounds like modern politicians here, but even worse' Ben thought.

"So how do I fit into all this?" he asked with determination. Paradox smiled at his question knowing he will undoubtedly help "you are going there to not only to rid that world of its enemy but also save it from themselves so… are you up for It."

"Are kidding me of course I am!" he said eagerly "So when am I going?" he asked as he stood up followed by paradox "You can start immediately if you wish" right after a portal appeared behind Paradox and stepped out of the way "Well here goes nothing" as he was about to step forward Paradox grabbed Bens arms to stop him "I must warn you though Ben you are stepping in a world where death is a common occurrence either by sickness or war and I fear that you may have to cross a line" he stared at him to let his word sink In but Ben just gave him a confused look not knowing what he meant before letting him off his grasp "Steel yourself young Tennyson while you have faced many dangers that doesn't compare there, that world is as cruel as it is unforgiving"

"Don't worry professor whatever comes my way I can take It" without anything else to say he stepped through the portal but as he stepped through he suddenly found himself in space being pulled slowly at first away from earth 'Huh weird usually when I travel with Paradox we're on the ground' he thought to himself but before he could think of anything else he was propelled through space at great speeds passing planets, star systems, galaxies then out his universe going to another

"AAAAAHHHHHHHHHHH"

he screamed his lungs out surprised in his situation he eventually stopped as he found himself floating above a plant similar to earth with different Landmasses he had no time to admire the scenery as he suddenly plummeted down heading to one of them.

Ben woke up with strained eyes "I'm gonna have a talk with Paradox after this" he said to himself as he propped himself up using his elbows and looked around noticing he was in a field covered in snow 'gotta find shelter or a town before it gets dark' he thought to himself and got up and looked at the omnitrix but it was blinking yellow so he tried activating but It just announced "Error: Function not available estimated time for completion of repairs 1 Hour."

He sighed frustrated for not being able to transform he just started walking trying to find a settlement or shelter before it gets too cold. After walking for some time the cold was getting to him a little when he stumbled upon a road and followed It leading to a settlement of sorts he saw in the distance.

When he came near the place he was given odd looks from the people due to his clothing since It was not meant for such climates and how strange It is at least to them. Not wanting to freeze anymore he asked around for directions that serves as a hotel or something similar "Excuse me" he said to a man he came across walking the same trail. The man stopped and looked at ben and gave him a quizzical look "Where can I find a place to eat and possibly sleep for the night?" Ben asked

Not wasting time for fear that Ben was a noble due to his clothes the man pointed to a two storey cabin that had a chimney with smoking coming out Ben thanked the man and went to the building as fast as his shivering body could. Once he was at the door he burst In not caring If he gained the attention of the other customers and sat near the fire place trying to warm himself up eventually the tavern keeper came up to him.

"You don't look like you're from around here are 'ya lad" Ben looked at the tavern keeper "No I'm not and I'm kinda lost where am I exactly?" He questioned "Well this be 'me tavern Lad and your in Snow coat village just a few miles south of Winterfell, now since you're here what can I get 'ya". Putting a hand on his stomach he thought for a second "Give me something warm and something to drink please" he asked politely as the tavern keeper went and got his order.

Sometime later he was eating roasted chicken, broth and drinking ale, while he was a bit hesitant to drink alcohol but he tried It anyway since he'd tasted weirder stuff when he was with Grandpa Max and while he was eating, he was thinking of a plan to find out more about the threat and the world he was in since Paradox didn't give all the details.

'First things first I gotta know what country I'm in since I'm practically lost and I need to know If I'm close to the threat or far away from It, Second find out who's in charge since I need to be cautious with the people I'm going to help, and lastly Is to introduce modern innovations I don't think I can live with the plumbing they got here.' He thought to himself as he made a somewhat decent plan to follow.

After finishing his meal he was left with drinking with ale when the keeper came up to him "I take it you enjoyed your meal" the keeper asked "yeah It was good thanks" the keeper smiled at the compliment then asked a fee about five cooper coins.

Ben chocked on his drink forgetting about his financial situation in another world he thought about the money he carried but doubt it would be accepted "Uhmmm….. I don't think I have anything on me at the moment" He worriedly said to the owner. Looking up from where he sat the demeanor of the owner shifted looking sternly at him "Are you saying ya can't pay?" he said as he put his arms on the table while leaning forward to ben "Uhmm… well… you see I".

While coming up with an excuse to get out of his predicament both of them started hearing screams and cries for help from the outside when suddenly the door of the tavern suddenly burst opened revealing a young man limping with an arrow in his leg "Bertram! what in hells happened to 'ya? what's going on outside?" The young man now identified as Bertram was held up by the owner "Wildlings they're here" Bertram said as he was now being led to a chair by the owner "Get those doors barred NOW!" the owner yelled at some of his customers but complied nonetheless fearing for their lives they started pushing a table or anything to block the door from opening.

"How in the hells have wildlings gone down this far south" questioned the owner to no one in particular. Ben now worried at the situation he was in checked the Omnitrix if it was working only to find it still blinking yellow. Making himself useful he went over to help the other customers barricade the door but it looks like the wildlings won't stop anytime soon "Any chance somebody called for help" He asked some of the patrons and the owner.

"I don't think so they just appeared out of nowhere I doubt anyone could run fast enough to get help anyway" Bertram responded weakly from pain. The owner looking at Bertram with realization just realized he had a horse at the back of his tavern. Picking Bertram up he started to lead him out back "Where are you taking me?" he questioned "There's a horse out back already saddled, you ride to Winterfell and ask for help" the owner said solemnly knowing he might not survive a wildling attack "But what about you, you can ride with me" he reasoned "I'll only slow you down now GO!" he slapped the back of the horse before Bertram can argue back. He went back inside locking the door behind him hoping help will come soon.

As soon as the owner went back to where Ben and the customers are he heard banging but this time he saw an axe head coming through the door as the wildlings laughed and cheered amongst themselves thirsty for blood the barricade they made was not helping.

"Bring It down!"

"FASTER!"

"I want their blood"

"Save any woman for me!"

They laughed and cheered knowing they were close to breaking down the door he glanced a look back at the young man who still hasn't paid his fee knowing It was his last day he started his last conversation "You know lad you still haven't paid me" Ben now glanced at the man "since were about to die 'me names Gunther" laying out his hand for a shake Ben shook It back "Ben, Ben Tennyson"

"HA I knew you were a noble looking at your fancy clothes and bright colors but a noble not able to pay for his own meal how laughable" The owner laughed out while shaking Ben's shoulder but Ben was confused how Gunther came up with him being a noble but as soon as he was about to speak the door gave out as a man came crashing through.

As soon as the door crumbled five other wildlings came walking In, their clothes made of fur as white as snow armed with axes. The customers Ben and Gunther took a step back fearing for their lives 'c'mon Omnitrix anytime now' Ben thought as he Glanced down at his wrist.

"Now look what we have here fresh meat and a lot of them too our bellies will surely be full tonight" He said striking fear from the customers knowing what they meant by fresh meat but only got a grimace from Ben. Just in the nick of time the Omnitrix completed Its repairs giving off a sound that notified Ben he now then turned to Gunther.

"Hey Gunther I think I know how to pay you back for the meal"

Winterfell

located near the center of the north Winterfell the ancestral castle and home to house stark, here we see Eddard Stark a man with a long face and brown hair with a trimmed beard also known as Ned to those he calls friends and family is currently overseeing the training of his guards along with Jory Cassel.

"How do you think the men fair If put into battle" Ned asked his captain "I think most can hold themselves in a fight but it's too early to tell since they haven't even faced real battle, only then will they be fit for service".

The captain discerned without hesitation knowing what each of his men were capable of to ensure the protection of not only His lord but also the rest of his family. Just when both were about to delve in another conversation a stout man with white hair and chops that went down and tied under his chin came running this was Rodrik Cassel the master-at-Arms accompanied by a dark blond haired young man with blue eyes.

This wan Theon Greyjoy ward of Ned stark and the last remaining son of Balon Greyjoy of sixteen years but really he was just a hostage for the starks in order to prevent another rebellion from his father but is still a close friend to his sons.

"Lord Stark, Captain, urgent news a man came to us said his village south of here is being attacked by wildlings" informed the man.

Both of them were shocked to hear this since while they did encounter wildlings they didn't expect any wildling to come this far south. Before contemplating any further Ned came over his shock and ordered his captain.

"Rodrik grab twenty men, Jory stay with the one's training and guard the castle just in case" Commanded Ned as Jory went and did as his lord commanded then turned to Rodrik.

"Inform my family on this matter then tell Robb and Jon to arm themselves I will be bringing them to join me" Rodrik nodded then rushed out while Ned went to the courtyard and by the time he was there Robb his oldest and heir at the age of sixteen years with dark brown hair and grey eyes, along with Jon Snow also of sixteen years having black hair and dark grey eyes also known as the bastard son of Eddard Stark were waiting for him atop their horses both armed and ready to depart he also saw his wife Catelyn Stark approaching him.

"Cat" Ned greeted as she was in front of him.

"Ned do you really need Robb to go he's still young for such a thing what if he gets hurt." She complained but Ned noticed how she didn't even show concern for Jon but didn't voice his opinion on It.

"They won't be young be young forever and this might earn the respect of other lords and strengthen Robbs standing as my heir"

Before Catelyn was about to complain Rodrik interrupted them

"My Lord I have gathered 20 men and ready to depart we are only awaiting you." he said with urgency

Hearing this he gave his wife a quick kiss before climbing on his horse "I'll be back Cat wait for me." he said before beginning their departure.

Village

Gunther just gave Ben a look that said 'really? Right now' "It's a little too late for that now lad since were about to die"

"It's your lucky day then because I have something up my sleeve to knock these guys out" he said confidently.

Before Gunther was about to ask him about what he meant Ben walked past the other villagers putting himself in front of the wildlings.

"Would you look at that a man accepting his fate and I thought men from the south were all cowards" said the wildling in the front eager to kill someone.

"No not really just someone who's going to stop you from doing whatever It is your about to do" Ben said confidently

Before anyone could react to what he said Ben rolled up his sleeve dialed the omnitrix and pushing down the dial before being illuminated in a bright green light that made everyone shield their eyes. After everyone recovered from their momentary blindness what stood before them was a three meter tall wolf or what they think is a wolf as it was standing on its hind legs Its muscular form was covered in a long grey mane armed with four claws on his arms and three on his feet, his eyes were green and clothed in a green suit that comes with shorts and green wrist bands on both his arms, and the omnitrix symbol on his chest in the form of a collar.

Both wildlings and villagers alike stepped or fell back in bewilderment or taken aback by what was in front of them and to their surprise It spoke

"What's the matter cat your tongue or should I say wolf" he japed as he got down on all fours and leapt at the wildling closest to him knocking his weapon away first before giving him a blow to the gut sending him through the broken door by Ben's attack "That's one" Ben said counting off.

"AAAAAAHHHHHHHHHH" a wildling pulling himself together ran towards ben while yelling and raising his axe to attempt to cleave him in half but was halted by Ben's arm griping his own, the wildling struggling to free himself then felt being lifted off the ground before getting thrown to another wildling across the room knocking them both unconscious "That's three"

The other two remaining wildlings in an attempt to overwhelm Ben decided to attack simultaneously raising their weapons they struck down, at least that's what they thought as their weapons only hit the ground. Ben in a show of skill in agility leapt over his two assailants landing behind them grabbed both of them behind their heads slamming them down on the ground knocking them out "That's five" he declared as he turned his attention back to villagers.

"So Gunther I saved your lives does this mean my meals paid?" He asked but Gunther still slacked jawed at what he witnessed couldn't even speak.

"Well…. I'm gonna go now see if anyone else needs help" He said understanding their shock and confusion to him transforming so he rushed out the door on all fours before Gunther could get out of his stupor to thank him.

Ben now outside the tavern witnessed the chaos going on around him he saw men fending off wildlings using only farming tools, wildlings banging on doors and then he heard the screams of women and children, feet running, men grunting and huffing, and the clashing of steel.

He had no time to think about how many of these 'wildlings' are so he just started to run and help however he can as he started running until he spotted a house with the door open he heard fighting and what concerned him the most was the smell of 'Blood' he thought so he rushed inside. As soon as he was in he saw two wildlings and a family of three where the mother and child cowering at a wildling who was about to attack them and another wildling who's overpowering a man likely the father by pushing an axe to his throat but was losing strength due to a bleeding shoulder they didn't even noticed Ben when he came in the house.

Without hesitation Ben acted first going after the wildling that was about to harm the parent and child by running towards him grabbing him in the back lifting him up and slamming him against the wall, the woman witnessing this screamed and held her child closer due to Ben's form. The wildling hearing the crash of the attack turned around to see Ben and his fallen friend but went wide eyed as he saw Ben rushing towards him before Ben swung his arm hitting the wildling on his side also getting thrown across the wall.

The man didn't have time to process what's happening as he saw the giant wolf drag both unconscious wildlings by the leg outside but turned his attention back to the man who was now comforting his wife and child told him "Lock and barricade the door" the man was surprised at first as it spoke but complied nonetheless when Ben ran out to help other people leaving the unconscious wildlings on the snow.

Wasting no time he started hunting for wildlings tracking them by smell and knocking them out fighting them inside homes and rescuing families telling them to lock their doors or outside where most of the fighting was happening. As the villagers first saw him they were understandably scared but that didn't stop him from helping them, after taking down wildlings outside and inside homes he was now nearing a structure that looked like a shop for a blacksmith when he got closer he saw five wildlings and two people in a corner a man wielding a spear probably the blacksmith and a young man bleeding from the head and laying down likely unconscious.

The wildlings that cornered the man were toying with him as they pointed their weapons while the man swatted them away as the wildlings laughed finding amusement at their victim's struggle when they heard movement behind them and what they saw either confused or terrified them. The same goes for the blacksmith but had no time to think as the creature closed in on them and when the creature was just a foot away from them It jumped over them while turning in mid-air and landing in the corner wall upside down digging his claws in the wood to steady himself and faced the wildlings while the blacksmith and boy was below him "Duck and cover your ears" Ben ordered as the blacksmith did so not even questioning the being.

As for the wildlings their confusion turned to horror as the wolf's snout split open into four revealing his green mouth with sharp and pointed teeth before the wolf howled "AWWWOOOOOOOOOO" releasing a sonic blast of sound scattering tools and weapons but still held back to avoid killing them, he then turned his attention back to the Blacksmith "Get out of here I'll hold them back" he said as he got down from his position noticing two of the wildlings haven't been knocked out.

The blacksmith not wanting to question his savior picked up the boy and ran out as the two wildlings shook off the pain of the attack their attention now on Ben "Looks like you're the last batch bout time I end this" he said as punched his fist to his palm but just as he was about to attack he heard

BEEP

BEEP

BEEP

BEEP

In a flash of red the wildlings were blinded momentarily before looking back and saw Ben in human form.

Confused as why the Omnitrix timed out he started slamming it with his hands "C'mon Omnitrix what's the problem" He asked in a panic but the Omnitrix glowing red rather than green just announced Error: due to severe damage limited time for transformation reduced to 20 minutes cooldown time required for activation 10 minutes.

The wildlings witnessing what just happened stared in confusion one of them now questioned his friend "Hey was that magic? Is he a warg?" he asked

"I don't know but that's no warg they don't turn into wolves they control them." the wildling in question answered back

"But one things clear he's vulnerable and ripe for the picking get 'em." the wildling announced as they both ran at Ben attempting to kill him.

Ben while vulnerable without the Omnitrix still he prepared himself for combat the wildlings now closing in on him he looked around for anything useful to defend himself but the only thing close to him was a shovel and a forge that was still burning, so he improvised by grabbing the shovel and used It to scoop up the burning coal and threw the coal to the closest wildling.

The wildling in question screamed in agony as his face was burned by the coal and hot ash that impacted him as he was now kneeling and trying to get the burning bits off, while he admitted to himself that this was not his style he was scared for his life but he had no time to contemplate about it as years of instinct honed from fighting villains and criminals alike he rolled to the left as an axe embedded itself on the wall where he was standing. The second wildling now freeing his axe attempted again to attack ben swinging his axe wildly but Ben due to having a lot of free time for a year practiced various martial arts to keep his skills sharp easily dodged every attack but was backed up against a wall. Seeing this the wildling raised his axe and struck down but Ben with his training, instinct and experience timed the strike and leaned to the right the axe embedded again in the wall. Ben threw a jab to the wildlings face making him stagger back, he then threw a hook and another and another but as he was about to throw the fourth punch he underestimated the wildlings strength as the wildling ducked and tackled him back to the wall knocking the air out of Ben making him fall down on the floor. The wildling now got his axe off the wall and slammed It down attacking Ben but rolled out of the way working through the pain in his gut as he crawled back to gain distance but the wildling was on him until he was backed against another wall, now panicking he started grabbing anything beside him as the wildling walked closer and raised his axe to finish Ben off but Ben then felt a handle of sorts and without thinking he closed his eyes and jabbed the thing forward.

Ben then heard a gasp then opened his eyes as he looked at a sword he's holding with blood dripping down from the blade and as he looked up he saw that he has pierced the wildling in the gut stabbing the sword halfway inside. Ben in all his years of fighting and being a hero never wounded someone fatally and as he lifted his gaze to face the wildling their eyes met, eyes both wide due to shock.

"I'm…I'm…I'm sorry I didn't mean to." Ben tried to apologize but the wildling didn't give him the chance as he grasped the blade and pulled it out accepting his fate as he stepped back and dropped down to the ground laying on his side as his blood poured out of his wound. At this time Ben was still looking at the wildling shocked at what he did, he then dropped the sword he was holding as he had never taken a life his hands were now shaking, his heart was pounding, and his breath was rapid. Trying to calm himself down he closed his eyes to try and steady his breathing but he didn't have that luxury as the wildling from before now recovered from Ben's attack charged at him with a sword attempting to stab Ben. But in the nick of time Ben just leaned out the way the sword now stuck at the wall but the wildling just kicked Ben from where he lay and got tossed aside he tried to stand up but the wildling jumped on top of him pinning him down as the wildling reached for a knife on his belt he then raised his arm up and stabbed down but Ben caught his hands as he attempted to push away the knife.

As both combatants overpowered each other the wildling was winning as the knife inched closer to Ben's neck and In a desperate attempt to live Ben pushed the wildlings arms redirecting the blade to his side but got stabbed in the shoulder. "AAAAAAAAAAAAAHHHHHHHHHHHHHH!" He screamed In agony as he never got injured this much when he was human the only time he felt agonizing pain was when he was 10 when Vilgax was removing the Omnitrix from him. He then felt pain again as the wildling forcibly ripped out his knife from Ben's shoulder to end Ben's life the wildling then raised both hands above his head to stab Ben again but just as he was about to bring the knife down an arrow pierced the wildlings side.

Ben turned his head weakly to where the arrow came from and to his surprise he saw Gunther at the door nocking an arrow and shooting It in the wildlings throat killing the wildling as He fell back. Gunther then rushed to Ben's aid "Don't worry lad you're alright we'll get you patched up." Ben didn't respond as he was breathing heavily either from his wounds or exhaustion. Gunther then dragged him outside looking for help the last thing Ben heard and saw before passing out were Gunther's cries for help and the two dead wildlings getting further from his vision.