A/N: (EDIT!)

Bloody hell.

I hobbled home this evening to get smacked with vitriol and complains about "A Most Unlikely Beast" and how dark it got.

So lets explain:

A Most Unlikely Beast isn't the end of the Most Unlikely Series, he's just the second Act. An antagonist. One starting with the weaker iterations of himself and working his way up. He's in for a RUDE awakening if he thinks he can just trample the Nasuverse like some raging Berserker. As we've seen, that world tends to bite back. HARD. Furthermore that Naruto is not a traditional "Beast" in the Nasuverse sense, but styles himself as one, false though he is. Tiamat or Goetia would absolutely ruin his day if he tried to face them. So there.

Would someone be a dear and give "A Most Unlikely Faker" and "A Most Unlikely Ruler" a review? They're so close to one hundred! Please? I've already accepted that "A Most Unlikely Rider" will never be as good as the rest, but at least these two...well, it would make an ailing man happy, and I write better when I'm happy, you know?

Now onto the rest of it.

Too nice, you say?

Too...NICE?!

Fine!

You want a dark Naruto?! You want an unrepentant evil bastard who burns worlds and enemies alike?! Here! Have him, then! Have a world-breaker! Have a villain who rejoices in tearing others down and lives to destroy worlds! Have a famine with an endless hunger, a destructive force that knows no peace, no calm, no rest!

HAVE YOUR BEAST!

One that was tormented until he snapped.

Consider this one the villain of the "A Most Unlikely" series. The harbinger of the end times, the one coming for everyone and everything. The result of this "singularity" a force of destruction that does not tire, does not rest, and does not STOP until its enemies are ashes beneath its feet.

As ever references are references and I own nothing.

As ever, this story will be gone in two days if folks don't like it.

I own no references or quotes and the one below encapsulates Beast!Naruto perfectly:

"If I have to suffer then so do you. Burn them all."

Burn them in their homes. Burn them in their beds. Burn them.

I will burn cities to the ground. I will burn the world. I will burn the universe."

~?

A Most Unlikely Beast

Beast, they called me.

Kinslayer.

Killer of kage.

The demon reborn.

Accursed. Spawn of the blackest pit. Monster. Demon. Devil. Defiler. Spawn of the bleakest womb. Oh, the list goes on and on. I could regale you for half an eternity with them. But you're not here for that, are you? No. I brought you here to record this, to witness what happens and to understand why. I'll leave you alive to spread the word, to tell of what comes after. And then you will die. Like all the rest.

They called me a monster.

They treated me, like a monster.

Imagine their surprise when I actually became one.

Come now, don't look so surprised! What did you think would happen when they beat me? Mistreated me at every turn? Shattered my spirit into pieces? They took a harmless little boy, someone who only craved the tiniest scrap of recognition from others, and they tormented him. Poked and prodded him until he finally went mad. Then when he finally deigns to defend himself, when his very life is in danger, they call him a monster for killing someone? They run screaming to their Hokage, demanding justice, demanding vengeance.

Ha!

What is vengeance but a twisted form of justice? What is justice but wind from one's mouth?

It wasn't any one occasion that broke me. There was no mob, no word, no war, no any one incident that turned me into the world-breaker I am now. My soul died of a thousand cuts, bled by countless minor cruelties that accumulated over time. Eventually someone actually tried to kill me. They nearly succeeded. And then I realized. If they saw me as a monster...what point was there in becoming Hokage? If the village-if the world-loathed me so much that they'd tried to erase my existence just to appease their own, why bother?

Yet they didn't hesitate to use this monster for your own benefit now.

They used me as a weapon.

An example.

I saved them.

From Gaara.

From Orochimaru.

From so many enemies.

I saved them, when I should've let Pain kill them all.

Still they wore their fake smiles. Still, they begged me.

Help us, Naruto! Save us, Naruto! Kill our enemies, Naruto!

Do as you're told, Naruto!

Obey your Hokage, Naruto!

Save my precious Sasuke, Naruto!

BAH!

What did I owe them?! Nothing but spit! When the old man died I felt nothing. I felt nothing for his replacement, a has-been drunk that I had to drag back to the village, kicking and screaming. When I traveled the world with Jiraiya, I felt nothing.

Then, when I finally grew tired of it all and fled with the one person who actually gave a damn about me, what did they do?

They tried to hunt me. They tried to slay me, as if I were some mad dog. Kill the demon, they cried! Burn the traitor! Destroy the monster!

I wish I had enough poison for the whole pack of them!

This life follows you. Clings to you. Infecting everyone who comes close to you. I am cursed. I should've know better. But I was still naive. There was still that last tiny little scrap of fire lingering in me. When my wife-gods bless her for putting up with me-died in labor I lost everything...until she gave me a daughter in her last moments. A final gift from a night of passion. In that moment I received some final semblance of hope. A chance to grieve un-alone, a chance to atone, to make amends for the sins of my past.

I named her Anya, in honor of her mother, Anko.

What?

Can't see me shacking up with someone like her? Hate and lust make for strange bedfellows. We were both outcasts.

When I left, so did she. Then she died. Everyone close to me...dies.

For ten years the two of us lived in peace; I made a humble living cutting wood and selling it to the local town. It wasn't much of a life, but it was our life. I hid my power and my face, not daring to use any chakra nor any jutsu for fear of being discovered. I vowed that I would be better, that I wouldn't let this rage consume me. I would master it. Control it. I told myself I wasn't an instrument of vengeance, that I wasn't a monster, wasn't a beast, wasn't what they called me...and she made me believe it.

I taught her right from wrong. I taught her to walk and talk. I loved that girl like she was my own because she was my own.

Then they found us.

Then they...they took her.

My one tiny speck of happiness.

I was away that day, gone into town to trade. I thought she'd be safe at home. I'd told her to lock the door; not to open it for anyone. I came home to find the lock smashed and...she was gone. Those lifeless little hazel eyes just staring at the ceiling, her body surrounded by Konoha shinobi. They might've said something to me. I don't remember. Everything went red. Their words dissolved into static; an endless animal bleat that went on and on and ON until I couldn't bear to hear it anymore. There were twelve of them and she'd killed three. Nine hardened men to kill a little girl. Brave men! Bold men! Ganging up on a ten-year old!

The only thing that mattered to me.

My baby girl. My child. They took that from me.

They...stole that...from me. KILLED THAT FROM ME!

I loved that girl more than life and they killed her they killed her they killed her killedherkilledKILLEDHER!

So I gave them what they deserved.

I remember the roar, the way it twisted up my throat. I remember the ax leaping in my hand, I remember bringing it down on the head of a Chunin as he raised his hands. Then a Jonin. Another. And another. Another still I remember the noise. The blood. The screaming. Perhaps there was an explanation. Perhaps they'd come to make peace with us. Perhaps. Perhaps. Perhaps. I didn't care. They were standing over her body and there was blood on their hands. That was reason enough. So I killed them. I didn't know how to bring back the dead, I didn't have the capacity, the power, the eyes, nor the knowledge. I only had the rage and I left none alive.

I wept.

I mourned her.

I buried her with her mother.

And then...then I finally went home.

With fire and blood I came back to Konoha and with fire and blood I set the beast free Two became one. When the fox tried to fight me I dominated him broke his mind and took his power for my own. I burned the village to the ground. None were spared. I ripped Konoha out of the soil, root and stem. I smashed the four faces and rained hell on their world. When the remnants of my mother and father's chakra tried to stop me, I quashed them. I didn't even deign to enter the village. I just walked up to the gate and blasted it apart. I didn't stop until the world went silent. If there were stragglers, surviving ninja on missions across the world, I never met them. They never came for me.

When the other villages DID, I delivered the same unto them.

When Akatsuki eventually came for me, I took all their secrets and made them mine.

I popped Sasuke's skull like a wet grape. I eradicated his "friends" his so-called team, as they tried to avenge him.

When Madara and Obito and their mad machinations reared their ugly heads I ripped out each of their eyes and bound them to my body. Useful eyes. By the time Kaguya emerged, I was already well beyond her...and her kin that followed her from the stars. I killed them and I took their power; I killed all who stood against me, then I killed because it was all I knew, because the sight of others happiness offended me. I killed because I had nothing left, because I could no longer control myself.

I killed until there was no life left in my world. But the anger-the hunger!-remained. So I moved onto another. The rage was all I had. The anger. The hate. Memories began to fade, burned up by the rage. Fade, until one day I could I could no longer remember where I'd buried Anya or Anko. For all my power I couldn't bring them back. I couldn't remember much of anything anymore, there was only the rage.

Here I am! The monster you made!

I see you, I saw all of you the moment I devoured Kaguya, the moment my eyes opened to the world and what lay beyond it.

I see you all.

I'm coming for you.

I'm coming for all of you.

Every incarnation of myself across the multiverse, stretching on into eternity. Some serve the Throne. Some traveled to the stars. Two followed the Counter Force. Yet others had defied the dogma of hatred to lead long, prosperous lives. Why should they be prosper where I suffer? Why do they get happy endings when I don't? Why should they live when all I do his hunger? Its not fair. No. It won't stand. It cannot stand. If I must suffer like this...then so will everyone else. I won't stand for anything less. I'll see your world burn. And every world hereafter. Existence is pain. Living is pain. So I'll engrave that pain upon the face of creation itself.

ALL OF THEM!

TEAR THEM DOWN!

BURN THEM! BURN THEM ALL!

I'm a threat? I'm a danger to the universe? To the human order? Maybe that's true, Servant. But I don't care. Now...go. Run. Run away. Tell your Counter Force what I've told you. Send your Servants. Send your spirits. Call down the gods themselves! I'll drag them off their high horse, kicking and screaming. I won't stop. I cannot stop. This is the only way forward. Ashes to ashes, dust to dust. Before creation comes destruction. And in destruction I will start anew. Come for me if you can. Kill me if you can. I won't stop until I'm dead. I will not stop. For my wife. For my daughter. For all that's been taken from me. I cannot be saved. There is no redemption here. Not for me.

What's that? Monster, you say? Yes. I am.

Perhaps you should speak more softly to me then.

Monsters are dangerous and these days Servants are dropping like FLIES.

I will begin with the weakest version of myself. With each death I become stronger.

I will destroy them all, then the Throne they stem from. I am the beginning. I am the end. I AM THE BEAST.

(...A Transmission From Another Universe...)

This is Gunner:

Listen to me!

Heed this warning!

Remember my message!

I failed. I couldn't stop him; even though I tried. Gods, I tried. I tried so hard and got so far, but in the end, it never even mattered. It came for me first. Took out my Master and most of the other Servants in an instant. Saber's out there fighting it now. I'm only just barely clinging on through Independent Action. I can't fight anymore, but I can still get a message out; can still warn the others. I still have one arm. I can write this. I can do some good with the time she's bought me. A warning. I can prepare others for this; so that they might never be caught unawares as we were. I'm sorry. Rambling. There's too many. So many.

I wish I had more time to tell my story. Its a beautiful one, if tragic. We were so close to winning...before the dark times.

Before everything went wrong.

Caster gave her life to make sure this message makes it to the Throne. I don't know how she did it, but she swore it would work. I trust her. So. Here goes nothing. I can hear the battle outside. I don't have much time. I never have enough time...! I have to finish this before it finds me.

Why it?

Why us?

Why me?

I don't know. I only know that "it" wants me dead.

Maybe because I'm the weakest of the bunch; a ninja who uses guns and little else. Someone who never should've existed. Maybe because this Grail War was a sham, a pale shadow of those raging in other realms. Illya didn't deserve to die like that. I'm sorry, Master. I'm sorry, Illya. I couldn't do anything. I couldn't save you. This is all my fault. If I hadn't been summoned...maybe this could've been avoided. Its eaten the Grail now, its become too powerful. Cannot be stopped. Cannot be stopped. What it doesn't kill it corrupts, turns against us.

It wants me.

My heart. My life. My soul.

My very existence, gone. Erased from this world and the next. But more than that, it wants us-me!-to suffer. It could've killed me seven ways to Sunday by now, but instead it let me escape. Its toying with us. Saber can hurt it, Rider can slow it, but they can't kill it. They're selling their lives dearly for this. For me. I'm not worthy of it. I caused this. It followed me through. I opened the door. I let him in. I'm sorry! I didn't know! Don't let him in! Whatever you do, don't let him! You have to be better than us! You have to be ready!

We can't kill it. We've tried everything.

Bullets don't work; it heals too fast.

Regenerates, almost instantly.

I can't describe it; because it has no set shape; it keeps shifting. Large. Small. Human. Beast. Few. Many. Legion. One. I don't think it even understands the concept of death. Is it like Tiamat? Gotta write that down. Try to apply the concept of death somehow? Is there a Servant who can do that? I don't know. I can't. I'm just a gunner.

That...thing may look like a man, but it is NOT a man. Do not listen to it. Do not trust it! Listen! You have to take it out in one hit; eradicate it so utterly that it has no chance to reform. Maybe EA could've killed it. I don't know. But it went for Gilgamesh first. Almost...almost like it knew. How did it know?

I can hear it out there, now. Its here. Tearing the bunker apart. Its coming for me now. I'm the last one left on this rock of a planet. I may be the first to go, but I won't be the last. Its a Beast. It can't be stopped. I tried. We tried. Its death. Not just for me, but for all of us. We need to band together. None of us can beat it-them!-alone. Not like this. Not apart. Not only us. Everyone. That has to be it. Stand together or die alone. I'm giving my life to get this out there. To all of us. To everyone.

I fought.

I lost.

Don't let my sacrifice be in vain.

He's coming for me. So are they. I can't feel Saber or Rider anymore. They're either dead or they've been...no. Don't think about it. They wouldn't let themselves be converted. They'd fight to the bitter end. I have faith in them. Oh, gods. They've breached the bunker. They're just outside. I can hear them. Whispering. Telling me to let them in. The door won't hold.

They're coming.

Coming for all of us.

Servant and human, immortal and god alike.

I'm sorry. I'm so sorry. Gods forgive me for what I've done.

Please. You have to stop it. Forgive me. Forgive...me. Forgive...me...

A/N: Well, that got dark right quick, didn't it?

Gunner!Naruto might well be dead now because of this.

I DID tell you all I had a plan for this series, and now its revealed...or is it?

Should this stay a oneshot?

Do let me know.

As ever, it'll be gone in two days if folks don't like it.

Yes, this Naruto wants to kill the other Naruto's. He's the one that "Watcher" glimpsed and decided to stay the hell away from. What's that? He won't kill the others? He wouldn't dare? He's not that far gone? Oh, my sweet summer child, how wrong you are...

...one is about to die you see, quite soon in fact.

So in the Immortal Words of Atlas...

...Review...Would You Kindly?

Hope you enjoyed!

R&R~!