A/N: Thank you to everyone who was unwaveringly supported this fanfic. As always I do not own TVD/TO.

Happy Reading….

ORIGINAL SIN

Chapter 16

Esther then gestured for Caroline to move in front of her but Klaus stilled Caroline's steps letting her face him, "Caroline, I'm begging you. You don't have to do this."

Caroline could see worry and resignation in Klaus' eyes, "yes I do, for everyone, all humans who have no idea of what is happening. For the supernatural, for family," glancing at each of the Mikaelsons, "for us, Nik, for us."

With one long exhale, Klaus brought her near for a kiss that told her everything he wanted to say to her abruptly letting her go and whispering, "I love you, always and forever."

Caroline looked into Klaus' eyes one last time and told him the same thing, "I love you, always and forever," then stepped to the spot Esther indicated. Esther gestured for her to drink the blood in the chalice and after a long breath she lifted the chalice to drink the contents entirely. Putting the chalice back on the table, she looked at Klaus again reaching out her hand to him and whispered, "Nik…" before collapsing in his arms as he quickly caught her.

Klaus had locked himself inside his bedroom with Caroline since the moment Caroline had collapsed in his arms. He had been looking at her non-stop, running his fingers across her almost translucent skin and whispering his loving devotion to her as he had her in his arms patiently waiting the time she would awake.

He was recalling the time he himself had been turned into a vampire several thousands of years ago. They had just finished dinner and Esther and Mikael had made them all drink a special wine brew, they had called it. Much later he was to realize it was the doppelganger blood of Tatia laced with wine. After dinner he went about his usual routine in the quiet of the woods when he heard a scream that sounded like his sister Rebekah. He had run back to the house picturing all kinds of scenarios in his mind of what had brought about his sisters' macabre scream. As he neared the house, he noticed his brother Kol just outside the open doorway with a gaping hole in the chest, eyes open and very dead. His blood had run cold then wasting no time entering the door in search of his sister. What he saw almost made him throw up, Rebekah was on the floor surrounded by a pool of blood lifeless. A few steps away he noticed Mikael his clothes and body full of blood and confronting Elijah who was frozen in shock. He shouted Elijah's name but his brother did not seem to notice or hear him and still stood petrified however Mikael had noticed him and changed direction to charge toward him.

Unsure of what was to happen, Klaus was unmoving and Mikael took the opportunity to swing the sword he was carrying and plunged it into him. Klaus looked at Mikael in disbelief as he faintly heard a cry from Elijah who had finally broken out of his stupor. As Klaus fell into his knees grasping for breath he saw two things, one, in the corner of the room as Finn also very dead and second, Mikael was charging toward Elijah and Elijah was just standing still as if waiting for his turn to be murdered by their Father.

Klaus recalled they had all woken about a few hours later confused and distraught with uncontrollable thirst for blood. That day the Mikaelsons had massacred entire villages feeding on men, women and children. It had taken days, weeks even before the thirst for blood had subsided to a single digit a day. Fear suddenly overtook his agitation, Caroline would feel the blood lust. It would be magnified considering the strength of the Original blood she would have in her veins, he hoped that she would have the similar instincts as before, when she was a baby vampire with tremendous control over her bloodlust.

One thing he knew she valued was the control she had over natural vampire instincts. It was a part of her that he loved, she had control when he had none. She had compassion and he had coldness, she had light when all he had was darkness surrounding him. He feared that all these and more would vanish when she woke up, that everything that was natural to him and his siblings, the killings, the urges, the rampages for a thousand years, all these would be something that will now be a part of her now that she had their blood in her veins, the consequence of being an Original.

He called out to Elijah in his regular voice knowing his brother would hear him seeking his guidance on how they would help Caroline overcome her initial overpowering thirst for blood. He wouldn't want to disappoint Caroline by doing nothing to help her control this part of the transition, she might not blame him but she would blame herself for all the deaths that would result in her lack of control.

In the other side of town, Mikael was pacing the floor. His witches had informed him again of a powerful surge that meant a very powerful witch or witches were practicing magic. Monique and the other witches were currently in trance therefore Mikael could do nothing but wait. He was tired of this waiting game, but he needed to know what was happening before acting. He needed to rely on the witches for answers before he could move forward. It was frustrating for someone like Mikael to be at the mercy of the witches but it was necessary evil for him to be successful.

Monique and the others finally came out of trance, the witches however totally ignored him as they all linked hands to chant and after a couple of minutes all but Monique remained standing. As Monique slowly turned to him, Mikael eyed her impatiently, "well?"

"My ancestors had the other witches' powers transferred to me through a transference spell, hence my sister witches collapse. They had their powers stripped from them. It was necessary, as you need to have a powerful witch by your side," Monique told him.

Mikael raised a brow, "how is one better than four witches, I would have thought witches excel in arithmetic."

Monique shook her head, "one is better than four or ten even, if that one has the power equal to a full coven, I have the magic of my ancestors shifted to me, it is the only way to match the magic of the Original Witch"

Mikael flashed to Monique in an attempt to grab her by the throat again. Monique was faster, she gave Mikael a brain freezing aneurism, "like I said, my powers have been upgraded. I am almost equal to the Original Witch, your wife Esther."

Mikael stepped back to eye Monique for a second before smirking, "and I finally have the upper hand. Come on witch, we don't have time to spare."

Mikael walked away and headed for the entrance of his hideout, Monique followed more slowly staring at Mikael's back. She had plans of her own as instructed by the witches from the Other Side but for now, she would follow Mikael's lead. He should not have any reason to doubt her loyalty to him.

Rebekah had been staring out at the window of the study for close to an hour before she heard footsteps behind her, "I've been looking for you," Elijah said as he stepped into the room.

Rebekah turned around to face her brother, "I'm sure if you had really been looking you would have found me earlier brother. Things haven't really changed much here have they except for the fact that Kol, Father and Mother are all alive and Caroline is about to become an Original," ending her sentence with a smile.

Elijah gave her a small smile, "and you are now back where you belong, with your family."

Rebekah smiled, "yes I am," she tilted her head as if picking up a sound, "I think Caroline is awake, Nik might need us." Rebekah flashed out of the study followed by Elijah as they both stopped outside the door of Klaus' room not surprised to see Kol and Esther also outside the door.

….meanwhile inside the room…

Caroline woke up to a sitting position abruptly disoriented and having uncontainable thirst for blood. Klaus immediately cradled Caroline in his arms soothing her by rubbing his hands on her back, "Caroline, it's alright, it's me." Klaus placed his hands on her cheeks as he looked into her eyes, "it's alright, it's me."

Recognition finally settled on Caroline, "I….I feel different, I need…" her senses were overpowering her, the smell of Klaus' blood was addicting, the steady pulse on his neck mere inches away from her. She couldn't help herself as her fangs descended and she plunged, biting into his vein unexpectedly. Klaus could only muster an "oh" but recovered swiftly as he wrapped his hand on the back of her head as she drank from him, his other hand still soothing her back.

The door opened with Elijah, Rebekah, Kol and Esther all quietly walking inside taking in Caroline enveloped inside the arms of Klaus as she continued to drink from Klaus. Klaus finally made eye contact with his brother with a subtle nod before he whispered to Caroline, "Sweetheart, that's enough, you are about to drain me," Caroline ignored Klaus as she continued to drink his blood which was like ambrosia to her. Klaus tried again, "Caroline love, that's enough," trying to extricate her from his neck. Rebekah took the last few steps forward to touch Caroline on the shoulder, at the foreign touch, Caroline froze, finally letting go of Klaus' neck. She took a few more seconds before she lifted her face from his neck finally facing Klaus and seeing him paler than he usually was.

"Oh my God, oh my God, I'm sorry!" swiftly leaving the bed to stand in the corner of the room, finally noticing the others in the room. She suddenly felt tears pouring down uncontrollably as she lifted one of her hands over her mouth, "I'm sorry, I can't...I needed blood, I'm sorry."

Klaus stood up from the bed and swayed a little, he was quickly caught by Elijah, after Klaus had steadied, he walked to Caroline, "it's alright love, it's expected. Your senses are stronger than ever, you are a newborn Original, you will have urges, blood thirst, it will be hard to control. But I am here, we are all here," including his siblings as he pointed them to her, finally reaching Caroline he placed his hands on her cheeks once again, "you drank my blood, it is potent enough, it will keep you from craving more for a few hours. Come back to bed love, you need to rest."

"No, I can't…rest. I can't, I don't know what's happening to me…..I need more blood, I need more blood," Kol immediately stepped forward to hand Klaus two blood bags which Klaus took thankfully. Handing one to Caroline, she swiped it from him, tore it open and downed the contents in record time reaching out for the second bag not even five seconds later.

Klaus looked at Elijah helplessly who stared back at his brother for a moment before walking toward the room liquor bar to get a glass and bite into his risk to fill it with blood at the same time encouraging his siblings to do the same. When all three had donated glass fulls of blood, Elijah had handed each one to Klaus so that he could feed Caroline in controlled amounts.

"Caroline love, these will be the last blood you should consume today, we don't want to overdo it but it is necessary to get your thirst under control. I'm sorry that you will be confined to this room with me until tomorrow, we have to be able to get your thirst under control. I know you would understand and appreciate this," Klaus told Caroline solemnly.

Caroline nodded at Klaus statement even as she reached out for the second glass of blood, "I understand…..and Nik, thank you." Looking at all his siblings one by one, "thank you to all of you too, the thirst it's just much stronger than the first time I was turned, I'm sorry," before drowning the second glass.

Elijah nodded his head, "we understand Caroline, no worries. We will leave you now to rest," turning to Klaus, "I will have Kol bring you up more blood brother, you need to replenish, you looked peaked." Elijah then ushered out his siblings and his Mother from the room.

Klaus picked up Caroline in his arms and lowered her once again on to the bed before picking up the last full glass of blood and bring it down to the side table on his side. He then lifted the covers to slide under and embraced Caroline to him once again positioning her against his chest as he stroked her hair while whispering, "it's going to be alright my love, I'm here."

Caroline nudged her face further against Klaus' chest, "I'm scared, the urges they are stronger. Stronger than me, I need you Nik, I need you to help me."

Klaus closed his eyes at Caroline's words and let a lone tear fall, "I'm sorry for putting you through this Caroline, I'm sorry."

"Caroline placed a hand on Klaus' chest to give her leverage to look at Klaus' face from her position, "don't, please don't say you're sorry. I wanted this, I just need you. You are my strength Nik."

"We will get pass this together then. I will be beside you every step of the way. You have a few hours before you need to feed again, I suggest some sleep," Klaus told Caroline before he kissed her hairline.

"We will strike tomorrow, the element of surprise is too much to pass up, witch. It should be done by sunset. If your powers are really at its peak right now, then you are the most powerful witch alive, we have everything on our side to ensure success of our plans. I promise you Monique," looking the witch in the eye, "when this is all over, the witches will once again rule New Orleans as it was meant to be with you Queen amongst the witches. However, a word of caution witch…." pointing a finger in her face, "if you double cross me in any way at all, things will not end well for you, no amount of witchy powers will protect you from me and my undying thirst for revenge, you should know that by now," Mikael finished.

Only because Monique felt confident that she had the strength of a dozen and more witches within her, she did not give Mikael an inch despite feeling frantic inside, "we have a pact Mikael, despite that fact that I have seen with my own two eyes that between the two of us you are really the one capable of double-cross, my sister witches can attest to this, I will stand beside you against your children. They are a thorn on my side as well, it is the only reason for this pact. I owe you no loyalty."

Mikael raised a brow, "very well, I will gather my army and we will have the showdown tomorrow sundown in the middle of the Quarter, a fitting ending to those who have betrayed me. You know what to do," with a last nod to Monique he flashed into the night.

Monique finally exhaled deeply, worry lines appeared to mar her face. The alliance with Mikael is tentative at best but necessary for her ambition. She had no recourse but to follow through with her alliance. The Other Side was also counting on her to do her part. As a consequence of Mikael crossing over from the Other Side and several unidentified others after him, a window of opportunity was now open for those who wish to cross-over from the Other Side. For that window to be open for a defined period of time, every single Original must be shipped to the Other Side by any and all means possible. Elijah, Rebekah, Klaus, Kol (yes, the witches from the Other Side were aware that he has crossed-over), Esther (yes, again the witches from the Other Side are also aware that she has returned and was working with her children against Mikael) and even Mikael, who unknown to him will also have to die, every single known and currently alive Original will have to die. Monique did not tell Mikael everything the witches from the Other Side had disclosed to her, she did not tell Mikael that Esther and Kol had cross-over. Mikael was in for a surprise tomorrow. She on the other hand, had her own agenda to complete.

Monique was to take the opportunity to complete a very powerful spell to kill every Original during the epic battle tomorrow then take down the Original Witch herself that was the only reason why all the witches have transferred their powers willingly to her, she was the key to their return. With the death of all the Originals, all vampires will be extinct because of the bloodlines. The only tricky part for Monique was to remain in power when all the witches returned from the Other Side, but her role in their return will ensure that she was to be respected and untouched. It was a stroke of genius on Monique's part, one that Mikael would never have guessed. In the end, she was the smarter of the two and Mikael would be dead because he would be the naïve and trusting one.

"It's a master-plan really, genius," Klaus smirked at his brothers. The only thing really bothering him was the role his Caroline was to play in all this. Everyone of his siblings and he would all play the role, Esther was to take care of the witch and Caroline was to finally end his step-father. Caroline just needed to master her strength and powers as a tri-breed, Original Vampire-Witch-Werewolf and she will have until tomorrow mid-day to master it, the element of surprise after all was to their advantage.

Elijah eyed all his siblings, then his mother and finally Caroline who was still a little disoriented with her senses as an Original, he turned to Klaus, "Niklaus, I this Caroline needs to be able to have one restful night before the war ahead," Klaus nodded to his brother stretching out his hand to Caroline.

As Caroline walked in front of Elijah, Elijah put out a hand to momentarily stall her, "how are you feeling? Is the blood lust under control?"

Leave it to Elijah to be perceptive about Caroline's struggles, she however just gave him a small smile, "so far I'm coping, whatever my status, human, vampire or Original, it seems my human tendencies are still with me, giving me the strength to control the overwhelming need for blood. I will be alright, I have all of you," encompassing everyone in the room with her look, "giving me the strength I need." Caroline closed her eyes and exhaled deeply, "I just hope I don't fail all of you tomorrow, it is my only fear."

Elijah squeezed the arm he was holding as Rebekah moved forward to embrace her tightly and Kol rubbed her back. Esther from her prone position finally said, "always and forever, family above all, as I always here you all say."

"Always and Forever, family above all," all the siblings mouth together. Finally Klaus escorted Caroline to their bedroom stealing little glances at her which Caroline noticed, she was after all an Original now, her senses were magnified.

"I'm fine Nik, really I am," Caroline told Klaus as they strolled hand in hand inside the bedroom. Caroline abruptly stopped and turned around, smirking at Klaus, "in fact, I have so much excess energy that I have to burn," tracing Klaus' chest with her fingers earning a raised brow from him, "I wonder, can you help me with my predicament…." Unexpectedly jumping in the bed and landing in the middle.

Caroline quickly went onto her knees and went to the edge of the bed where Klaus was still unmoving. Caroline bit her lip to hide a smile before she grabbed Klaus' Henley from the open buttons on top and proceeded to tear it in the middle, "you have a hundred spares of this shirt anyway." Klaus then flashed Caroline against the wall before he also tore up her dress, "I prefer you without this one."

The undressing took all of a minute, as each of them flashed the other against any solid object in the room until they were both naked. Klaus had Caroline pressed once again between the wall and him while he was kissing her neck, making little bit marks as she moaned his name repeatedly. Caroline not to be outdone, used her new found strength to flash Klaus against the door this time Klaus was sandwiched between her and the door. Klaus could do nothing but intake a breath as Caroline tongued his nipples then sucked them.

Looking at Caroline with hooded eyes, Klaus used his strength to flash Caroline on top of the bed trapping her hands above her head, "Caroline love, I need you now," as Klaus entered her with one powerful thrust.

"Nik, Oh God, Nik!...harder….faster…." Caroline rolled until she was on top of Klaus with her thighs locking his hips in place as she set a blinding pace between them. She suddenly kissed Klaus neck before biting into his vein sucking his blood once again while continuing her pace. Klaus took her distraction to roll them so he was once again on top of her cradling her head that still had her mouth latched to his neck.

The pull to also bite her was so strong, claim her as his mate as a werewolf was so overwhelming that as he felt her tighten moments away from her orgasm he plunged his fangs into her neck, drinking his share of her blood. It was a few seconds after that he realized that he had unknowingly unloaded his sperm into her, caught up as he was in the sweetness of her blood. Both of them were still unwilling to let go of each others' neck, tasting the ambrosia that each one of them loved the most. They were one, finally as vampires and as werewolves, they were mates. When Klaus finally let go of her neck, he immediately felt like he was missing a part of himself, a part that now belonged to his mate, Caroline. Finally coming down from the combined high of her orgasms and Klaus' blood, Caroline finally let go of Klaus neck, kissing in tenderly before locking lips with Klaus once again. They eventually both fell into a slumber of unparalleled comfort still entangled together.

It was sundown, battle lines have been drawn. On one side Klaus was flanked by his brothers Elijah and Kol on either side, Rebekah and Esther a few steps back followed by loyal vampires led by Marcel.

On the other side of the Quarter crossroads, Mikael lead an army of new born vampires all thirsting for blood, the witch Davina to his right side as were a few witches. Mikael also had compelled humans among his army, the better to confuse the enemy.

"Where is the blond bitch you are so fond of, my bastard son," Mikael yelled at Klaus.

"Your war is with me and my siblings, she has nothing to do this!" was Klaus yell back.

Mikael looked at the army assembled in front of him, "impressive, you have assembled an army and even have my dearest wife standing with you. But in the end, it is still not enough," turning to Monique, "now witch!"

Monique raised her arms and immediately all the vampires on the other side fell to the ground clutching their heads. Mikael gave out an evil laugh, "you see, Monique here has enough juice to take all of you down my children and every other vampire on each of your bloodlines. The witches from the other side have come to my aid."

Elijah, Rebekah and Kol have all been rendered useless with each one still lost in their own internal battle with a brain exploding aneurism. One by one the lesser vampires behind them where falling down, some of them very dead and lifeless with blood sipping out from all organs.

Klaus was also battling his own aneurism, but relaying on his werewolf side to battle out the effects of the magnified aneurism as he growled to a semi sitting position sneaking a glance at what his Mother intended to do.

Esther had linked her hands with Davina, Esther was for her part locking eyes with Monique, "don't you touch my children!" With the battle of the witches now into play, Monique had to divide her attention not to break her hold on the Originals while deflecting the spells of Esther and Davina.

Finding the opportunity, Mikael took two steps toward Klaus while slowly reaching out for something that was hidden behind his back. Mikael locked eyes with Klaus then deliberately showed him what he was clutching. Klaus' eyes widened as he saw the white oak stake on Mikael's hand.

"Ah Niklaus, it would be too easy to just put this stake right through your heart. But there is a better use for this, the witches could only conjure one white oak, it would have been fitting for it to be plunged into that very dark heart of yours," Mikael lifted his arms for Klaus to see, "but you see, your end will be near just like all my other children, look at them my bastard son. Blood pouring out from all of their insides, it will only take a few more minutes and all of you, my beloved children will be dead."

Klaus tried to stand up still battling his aneurism, "you will never win Mikael, never!"

Mikael laughed loudly, "I am already winning! But I have another surprise for you….son," with that goading three newborn vampires pushed Caroline forward, making her sink to her knees a few feet in front of Mikael and facing Klaus. Klaus eyes widened at what he saw before him as he tried to find reserve strength to pull-out of the brain freeze.

"Mikael, don't do this! Let her go!" Klaus shouted.

"I don't think so, son." Mikael took a few more steps so that Caroline was just about a foot from Mikael with Mikael's front to Caroline's back. He grabbed Caroline roughly by her neck as he lifted her so she was now standing in front of Mikael. "I hope you said your goodbye son, if not, that's fine. I am sure you will see each other on the Other Side soon," with that he lifted the white oak stake above his and Caroline's head and plunged it to directly strike her heart as Klaus once again shouted, "No!"

Everything froze after that, Mikael was beyond shocked that the stake could not penetrate Caroline's skin. He tried again, the stake again failed to go past skin, "witch, what is happening!" calling Monique's attention.

Caroline turned around to grab Mikael's neck, "she cannot help you!" Caroline used her Original strength to grab the white oak stake from Mikael's hand while he was distracted and thrust the stake right into the center of his heart."

Mikael looked at Caroline momentarily confused before he glanced down into his chest and saw the stake buried in his chest, his instinct was to try to get the stake out of his chest but he was rapidly graying, falling to his knees taking one last breath before succumbing to the darkness of death.

Caroline continued to look at the fallen body of Mikael for a few more seconds before she was distracted by all the noise around her. When she looked up, she saw the Original siblings, Kol and Rebekah bloodied and immobile, Elijah almost on his last breath and her Nik on his knees looking at her with so much love and fear.

As Caroline looked beyond Klaus, she saw Esther barely holding on as she continued to fight Monique spell for spell to save all her children and the vampire race in the process. All around the stench of death of vampires of lesser strength than the Originals.

To her right a few feet from her she spotted Monique, who was not only killing the Originals effectively but also battling the Original Witch toe to toe, spell for spell. Whatever strength the other witches from the Other Side had transferred to her, it was powerful enough to annihilate the Originals and eliminate the whole vampire race. She knew what she needed to do, she was after all the tri-breed, vampire-witch-wolf. Caroline flashed to Monique to grab her throat effectively taking Monique out of her trance.

Confused, it took Monique a few seconds to assess the situation before shifting her focus on Caroline giving her the same dose of aneurism she was giving the Originals. Monique's frown was just the cue Caroline needed for her to tell Monique, "that doesn't work on me, I have witch blood flowing in my veins now, it will take more than the average dose to get me down."

"Then I will give you more than the dose I gave the Originals, you underestimate me. I have unlimited powers now, and I am more than willing to use them all to rid the world of the likes of you!" Monique told Caroline.

Caroline fell to her knees with a frown as she looked at Monique who was smirking at her. In the distance she heard Esther's voice calling out to her to come to her. Finding the strength to lift herself up while fighting the spell of Monique, Caroline was able to flash to Esther as Esther instructed her to link hands with her so they could link their witch powers to stall Monique once again.

Klaus was almost lying prone on the ground bleeding and exhausted. He felt like his insides were about to burst, the witch Monique was still giving no let up from the spell. He spotted his siblings Rebekah and Kol both unmoving a few inches further he saw Elijah, catching his brother's eye as Elijah was grasping for breath before he finally lay prone. Klaus twisted his body to see his mother and Caroline hands linked together chanting while on their knees trying to bring down Monique who had turned into a super witch. In the corner of his eye, he saw the approach of three men who worked in harmony creeping unnoticed behind Monique. As the two men took flank positions on either side of Monique, the older of the three, who looked vaguely familiar to Klaus rushed forward to bite Monique in the neck, werewolf….that was the last thought of Klaus before he finally passed out.

That's it for Chapter 16. Flashbacks and explanations will be made in Chapter 17, it's just too long to have everything in this Chapter, I had to cut it.

This is not the end of the battle….the battle continues in the next few Chapters. To explain Monique's powers, the Other Side witches used a transference spell so that their powers can be transferred to Monique, whose strength and powers became magnified. The objective was simple, they (the witches) used the opportunity of the battle between the Mikaelsons/ The Original family, to rid the world of the Original vampires therefore annihilating the entire vampire population. With the vampires all vanished, the witches then would be the most powerful supernatural group. They always considered the werewolf population as inferior to their race.

But the battle is just beginning for the supernatural world. What is clear here is Mikael is killed by the white oak stake. The fate of the sibling – Kol, Rebekah, Elijah and Klaus is still up in the air….

I hope to finish the next Chapter by the next week.

Reviews please.