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I Am Your Knight

Summary:

Finn fails to discover his prosthetic’s additional features when he’s locked in the ziggurat.
This leads him down a dark, painful path, on which he is changed forever.

Chapter 1: New Finn

Notes:

(See the end of the chapter for notes.)

Chapter Text

Today was going to be amazing. He could just tell.

The warm rays of the sunlight danced on his face as his eyes slowly flickered open, registering the familiar environment around him.

This was his room. His and Jake’s. Theirs alone.

 

He rose out from his sleeping bag, quickly “changing” into his usual clothes, the ones everyone knew. His. No one else’s. His alone.

Wondering what he’d do for breakfast, he scampered down to the kitchen, grabbing some food and quickly chugging it down. There. He could say he ate before Jake woke up. He was safe.

He then turned his attention to the window, sun in the sky over the grasslands before him, presenting itself over Ooo at large.
He stared out over the fields, smiling.

He kind of wondered what he was doing. Crying, maybe. Begging to be let out, likely. Or maybe he did carve his way out, and was after him.

No, there was no way. He was there, until he declared he could leave. Yes, he liked that. He was in control of him now. From a prisoner to a warden.

It was beautifully poetic.

 

“Finn?” A familiar voice called out, as his dearest brother climbed down the ladder. “You up?”

 

“Yep!” He said, grinning a little too wide. “Woke up before you. Ate, too!”

 

“Uh…” Jake replied, looking at Finn, back too straight and teeth looking a little sharper than usual. Did he lose a little weight too? It was hard to tell. “...Great!”

 

“Great!” He said, joyous over how everything was going so far. “I’m gonna go check in on NEPTR. I love you!”

 

Finn quickly scampered away.

Huh. It was… unlike him to be so enthusiastic about NEPTR. Weird.

His eyes also looked a little wrong for a moment, too. Pupils too long, and a hint of a sickly green in his sclera. Was he feeling well? Or was he... possessed, or something?

“...Love you too.” Jake said, watching his dear little bro happily run off without a care in the world. Seeing him just so... happy and full of energy made Jake realize he had no idea what he was even thinking for a moment. He’d just let his bro be a kid, for now. It wasn’t hurting anyone, after all.

 

The human quickly ran about, humming softly to himself as he located the little microwave robot. He deserved love. So much more love. After he and Jake and BMO kept neglecting him time and time and time again. How rude! Seriously, what was with them sometimes? With him ignoring his son, Jake not caring too much about his nephew, and BMO outright hating him, it made FernFinn a little angry sometimes.

Well, it was high time he got some good, proper loving!

 

He quickly located him, scooping him up and spinning around, holding him high in the air.

 

“Hello, creator!” NEPTR greeted, blissfully unaware of anything being even slightly off. “BMO says you are acting weird!”

 

“No I’m not, silly!” He said in response, smiling back at him. “I’m still good old Finn! Always have been, always will be!”

 

“Oh, okay!” NEPTR said, as Finn put him back down, giving him a hearty pat on the head as he prepared himself. It was a beautiful day outside, and there was no reason to waste it inside!

 

“Jake!” He called out in a sing-songy tone.

It took a bit of waiting until Jake came down the ladder.

 

“Man, you are just full of energy today, dude…” Jake sighed. “What’s up?”

 

“Wanna go on an adventure?” Finn asked, getting right to the point.

 

“...Already?” Jake asked. He didn’t know why he was asking. I mean, it’s just a good old classic Finn and Jake adventure! They loved those! And they always would! “Man, it’s so early… just… gimme some time to prepare, o-”

 

“No time to prepare!” He joyfully shouted, grabbing his hands. “Let’s gooooo!!!”

 

Jake froze up a little, staring at his off-color eyes, grin still too wide.

He gulped. Something was seriously off here, but he didn’t know what. But… this was his bro, and he’d support him, even through… whatever this was.

 

“...Alright, Finn.” He responded, relenting, as Finn’s face lit up with even more glee.

 

“I’ll lead the waaay!” He shouted, skipping off into the distance as Jake rushed after him.

 

Just like old times. Good old times he was barred from. So many times he had to sit and watch. So many times he was treated as just an object, and not a person with thoughts and feelings and dreams and hopes, trapped inside of a sword with no clear way out.

Not anymore. He was in control now. He was Finn.

And he and Jake would go on adventures like this.

Forever. And ever. And ever. And ever. And ever. And ever. And ever. And ever. And ever. And ever. And ever. And ever. And ever. And ever. And ever. And ever. And ever. And ever…

Notes:

Alright, finally getting started posting this.
This AU is HEAVILY inspired by its-just-fern on Tumblr’s Only Finn AU, and the fanmade Blue Knight AU of that by newtexcwl on Tumblr. Except, Both Finn and Fern are alive at the same time, no death and reincarnation needed, and uh. Finn goes through it!!!
The chapters in this fic are… a bit on the shorter side of things, usually only about 1000 or so words, sometimes a bit less, but I’m trying to make all of them at least enjoyable to read. So, stick around!