A/N Hello! Welcome to Wolf Blood. I know its kinda a gross title, but after you read this it will make sense.

Anyway, so this is a story written by both myself and XxadvengerxX25. He's writing all the even chapters and I'm writing the odd. So with that out there, enjoy.

Disclaimer: I own nothing!

This is Berk.

It's twelve days north of hopeless and a few degrees south of freezing to death. It's located solidly on the meridian of misery.

Our village, in a word: Sturdy. It's been here for seven generations but every single building is new. We have fishing, hunting and a charming view of the sunsets, the only problems are the pests. You see, where most places have mice or mosquitoes we have, dragons.

An explosion rings outside with a sonic boom and the two children dive under the table. "Hiccup, Isha, the dragons cannot get you in the house." A voice says irritation rolling off his words. The two five year olds look up at him, identical green eyes of the two twins wide.

"Uncle Gobber said they would, Mildew." Hiccup says and jumps again as a sonic boom rings through the air. The raid had been worse than most and Hiccup and Isha had been ushered into their house where Mildew had been put in charge of them. Mildew has the personality that makes you want to slap him over the head several hundred times, then get a hammer and repeat the process.

"And what if Gobber is just pulling your leg?" Mildew says and leans down looking at both of them.

"He never pulls my leg." Isha says quietly and Mildew sighs.

"Children." He growls and rolls his eyes as they both jump again.

"Your supposed to be the next chief, Hiccup and uoy can't even face a raid like a grown Viking." Mildew snaps and Hiccup looks up at him, Deadly Nadder doll clutched in his hands.

"I'm not hiding. I'm protecting Isha." Hiccup argues.

"What an achievement." Mildew drawls and Hiccup rolls his eyes looking back at Isha. She gives him a soft smile, eyes wide as she tries to be brave.

Flapping is heard in the small room before the wood of the house creaks and a wall smashes. Hiccup reacts purely on instinct diving out of the way and grabbing Isha with him. Mildew lifts up his staff, shoving the two Haddocks behind him.

"Oh my Thor!" Isha screeches eying the huge Stormcutter looking down at them. Mildew's eyes harden and Hiccup squeaks once.

"Stay away you foul beast!" Mildew yells. The Stormcutter glares at him, eyes softer as he sees Hiccup and Isha.

"Isha! Hiccup!" A voice yells before the door is thrown open and Valka races in grabbing a sword from off the wall rushing next to Mildew. She looks back at her children, "Run!" She commands and Hiccup looks at his twin for a second both to afraid to move.

The Stormcutter hisses softly before it lets out a stream of fire and dives forward claws wrapping around Valka. The wood creaks before the inner walls collapse in on themselves.

Isha manages to avoid it, slipping outside of the flaming building. She looks around for her brother and cant see him, "Hiccup!" She yells and turns to run back to the burning building but sees her mother small dot in the sky in the arms of the Stormcutter.

Isha lets out a terrified cry before she whips around and races into the woods, trying to get away from the attack. Dragons roar behind her and Isha keeps running until she can hardly breathe.

Panting and breathless she falls to her knees and cries. Everything to much for the child to process, or accept. Her mother is gone and there's no way Hiccup survived the collapse.

A growl breaks the five year old from her thoughts and she lifts up her head very slowly, green eyes wide. Only darkness of the night I what she sees. Isha gets to her feet turning slowly trying to remember the way back to the village. The growl breaks out again and Isha pauses turning her head to look back at the blackness.

A pair of red eyes open in the blackness and Isha screams every horror story Gobber had ever told her coming to mind. Instead of a troll or a goblin a wolf leaps from out of the woods onto her.

Isha yelps as her back hits the ground and she looks up at the wolf tears filling in her eyes. The wolf growls at her and Isha closes her eyes tightly. The bite comes unexpected as Isha wasn't looking and she snaps her eyes open, gripping her thin arm to her chest as the bite starts to bleed. The wolf stops pacing around her as a thump emerges behind both it and the small Haddock.

Isha closes her eyes tightly, curling in on herself as a dragons furious roar breaks through the air.

...

Stoick the Vast is a mighty man. As chief of the tribe, he takes pride in it. But watching Valka be taken and his house collapse with his children and Mildew inside, the young chief feels small and helpless.

"Hiccup! Isha!" He yells rushing forward to the burning building panic racing through him. "Water! Water!" He yells whipping around looking back at the village.

The raid was coming to a close, the dragons picking up livestock and leaving. Some buildings are still on fire, most smoking. Villagers rush forward throwing water onto the burning Haddock household as a man stumbles from the ruins, receiving a splash from Spitelout.

"I'm not on fire you muttonhead!" Mildew yells at the man and Stoick rushes to him, seeing the small bundle in his hands.

"Hiccup." He says and takes the unconscious child from Mildews death grip.

"He's not as burned as he could be, nothings broken." Mildew reports and Stoick nods breathlessly.

"Isha?" He asks looking up.

"I'm sorry Stoick." Mildew says and pats him on the shoulder. Stoick grips his son turning around looking at Gobber.

"Take him." Stoick commands handing Hiccup to Gobber.

"Where are you going?" He asks as the chief starts to storm off.

"Valka's gone. But Isha must have run into the woods. I'm looking for her, do not let Hiccup from your sight." Stoick commands looking back at Gobber briefly who subconsciously tightens his grip on the child.

Stoick shoves through trees, bushes branches anything in his path, looking for his daughter. Little can be said about the worry that raced through him when he found the child.

Isha lays on the ground, arm bleeding heavily, a dead wolf against her, dragon footprints all around the two. Stoick rushes forward and shoves the wolf to the side picking the small child off the ground and cradling her. "I-"Isha mutters.

Stoick puts a finger to her lips, "Shh." He whispers running a hand through her auburn hair. Relief flooding through him.

As Stoick walks back the village, Isha became paler, until her skin was near chalk white. Stoick's worry only increases as Isha's hair began to softly fade to a silver from her roots.

Stoick finally broke through the woods rushing forward to where Gobber held Hiccup the rest of the village still gathered. Though Stoick desired highly to tell Gobber 'I told you so' the need of medical attention was high for both twins.

Isha's eyes snap open abruptly and she stares up haunted look in her eyes. A low growl sounds in her throat and Stoick nearly drops her from shock. Stoick lays the child next to Hiccup as Gothi begins wrapping Hiccups wounds eyes on Isha.

With his children finally seeming to be okay, Stoick turns to the rest of the village sighing heavily. The deaths had not been few that night.

As the cheif begins to direct repairs the village finally strays away from the small hill. Gothi starts to work on Isha's arm holding the twitching child down, wrinkled face twisting with concentration.

Finally wrapping the wound, Gothi looks back at Stoick missing completely when Isha changes. A small whimpering silver wolf in her place for roughly five seconds before she returns to her human form. Hiccup awake now, stares at his twin sister with wide eyes, hardly believing what he just saw.

His sister had just become a wolf.

...

Ten years later.

Hiccup POV

A quick shaking of my shoulder draws ne from my soft sleep. I groan softly sitting up and rubbing my eyes looking at Isha. With a candle in one hand satchel in the other her ghost white appearance nearly startles me.

"W-What?" I ask groggily.

"Hiccup, its that time." She whispers softly, silver hair falling in front of her freckled face.

I purse my lips picking up on the hint. "Give me two seconds." I mutter reaching blindly for my vest. Isha stands calmly next to me, green eyes sunken from her recent illness.

My fingers brush the fur of the vest and I grab it swinging it over my shoulders. I get to my feet shoving on my boots and look back at her. "Ready." I declare. She nods softly and pushes her fingers against the candle. It smokes as its put out and Isha lays it on my desk before throwing open the skylight.

I let out a soft breath before I swing a leg over the side of the window and jump out it, Isha landing next to me. I take the satchel from her and swing it over my shoulders grabbing her hand and squeezing it for reassurance for her.

We walk forward to the woods the pale light of the stars shining down on us. I shake my head to clear memories from ten years ago shoving into my head, they try every time we do this. Isha's wolf blood is very dominate, and because of this, every full moon, one night out of the three Isha changes into a wolf.

There is no choice on the matter, it's not her decision, the most I can do is wait the night out with her. The only way we can tell its coming is Isha gets very pale. What I would give to take the burden from her!

We reach our destination, a small cove in the middle of the woods and Isha slips through the small entrance and I follow her. "You dont have to do this." Isha days softly.

"Do what?" I ask and she looks back at me, bangs falling in front of her face.

"Stay with me." She answers. I roll my eyes and punch her on the shoulder lightly.

"I go where you go. It's our motto." I say and she sighs. "Besides, I'm not gonna make you have to deal with this by yourself." I answer and plop down on the ground leaning against a rock.

Isha wanders around the cove for a while pacing back and forth as the moon starts to shine down on us. I grab a stick and start to trace the ground as Isha transforms. Well I've had a little less than a decade of experience with it, its still discomforting.

Isha sits down next to me, silver coat sparkling in the moonlight. She curls up next to my foot and her eyes close as she starts to sleep it off. There have been times when she didn't and both of us have been severely injured.

I sigh watching my twin for a second before I begin to finish tracing the small picture, adding a title to it on the bottom watching it sadly, reading the words over and over: Wolf blood.

A/N

Hi, when XxadvengerxX25 gets chapter 2 done, I'll post it. So until then! :)

Please review!