AN: This story is going AU from S11E18 onwards. The boys find a way to kill Amara, but of course it doesn't come easy. Title means "I'm the light in the darkness" in Latin. All lore related stuff is half researched, half made up. Don't sue me. It's fan fiction! :)

Disclaimer: I own nothing supernatural.

Thank you to everybody supporting me in my writing in one way or another. NerdAngel, LilyBolt, ChicoThorn, Biensche, mjf2468... just to name a few. Have fun making this journey with me.

Another big THANK YOU to my beta, Lee!

Enjoy.

***sn***

Dean was stretched out on his bed, arms crossed behind his head, staring at the ceiling. His thoughts were revolving on how to clean up the mess they were in. Every time him and Sam cleaned up one mess, they somehow stumbled onto or created an even bigger one. Latest one went by the name of Amara, older sister of God.

The older Winchester brother chuckled humorlessly. Such a pretty mess. And what made it worse was the attraction he felt towards Amara. He didn't ask for it, he couldn't shake it and he sure as hell couldn't end her. He had tried - and failed.

Dean sighed and sat up. It was no use, he couldn't sleep anyways. Getting up, he shuffled across his room, not bothering to put shoes on his sock clad feet. The bunker had a nice temperature and t-shirt, jeans and socks were enough to keep him warm. And he wouldn't wake Sam.

To make sure his little brother would get all the sleep he needed, Dean decided to head towards the other side of a bunker. He couldn't believe there were still corners in the building that they hadn't really explored yet. This bunker was just too big, but it was their bat cave. The library was almost it's biggest asset, containing much more lore and information than his geek brother could dig up online.

Passing the entry to the garage, Dean resisted the urge to go work on his beloved Impala, his Baby. He couldn't, however, resist taking a peek. Flipping the switch to provide light, Dean smiled when the sleek contures of his Baby melted from the darkness, softly reflecting the light. This car was the most important constant in his life next to Sam.

Lovingly, Dean ran his fingertips softly along the strong frame as he strode by, feeling the smoothness of the polished vehicle. The hunter then leaned against the wall, facing the interior of the garage so he could make out all twenty-odd cars they had come across when they first had explored the bunker.

After a while just staring at the 67 Impala, Dean decided to head back to the library to do what they had already done countless times - search for any kind of lore on Amara, the Darkness. As Dean's hand flipped the switch again he heard an electrical crackling and all lights faded.

"Crap," Dean muttered. Somehow he had tripped the fuse. Luckily his phone was in his pocket and he pulled it out to make use of the flashlight app. He made his way to the control room to activate the main controls again.

A frown formed on his face when he realized there was nothing out of sorts, though. The main control was activated. Where was the back-up box again? A tiny beep informed Dean that his phone's battery wouldn't last much longer.

"Double crap," he muttered again, sounding a tad more annoyed even than the first time. "Don't die on me, yet."

But the battery had other ideas. Granted, it certainly wasn't the best anymore and that flashlight app was zapping energy like crazy. Just when Dean had made out the elusive back-up box, the beep sounded again and the light went out.

"Son of a bitch," Dean cussed. At least he knew where the box was and, stretching out one hand, he navigated the inky blackness to feel out the cabinet. His fingers found the lever and he pulled open the door. Next he carefully felt his way across numerous tiny switches, all pointing up, trying to find the one - or more - pointing down.

His fingertips brushed across some piece of paper, causing Dean to frown, but he didn't let it distract him from his task. Finally, the last two levers happened to be out of line and he fixed the problem. Instantly the lights switched on again, and the control room buzzed to life.

A satisfied smile ghosted over Dean's features but was replaced with a curious frown when Dean's green eyes fell onto the rolled up piece of paper his fingers had brushed. Carefully, he retrieved the scroll which was wedged between the fuses. It looked old and like it belonged in the library.

The page was rolled up, sealed with rope and had five symbols on the front of it. Dean squinted but found that, despite the familiar appearance of the signs he had no idea what type of writing it was. He did however realize that the first, third and fifth symbol were identical, resembling the letter A. The second looked like a backwards P and the fourth like a messed up W.

Something about it looked familiar and Dean frowned as he carried the scroll back to the library for further inspection. In the back of his mind was a niggling voice telling him he'd seen this type of writing before.

***sn***

Sam woke up with a start, unable to tell what really woke him. It was quiet. As much as he strained his ears, he couldn't make out any kind of noise. Noise? Sam sat up straight. This was the bunker, and as much as it had gadgets that Sam wouldn't have thought the people who built it years and years ago had access to, it was old and there was always the almost undiscernable humming of electricity in the air. At least when the lights in the passage where on, which they always were when the boys were home. Only now there was nothing.

Swinging his long legs out of bed, Sam grabbed his gun and flashlight and quietly made his way to his room's door. The passage was dark. It wasn't supposed to be dark. Readying himself for anything, Sam pushed the door open and inched his way towards his brother's room.

Dean's door stood open and one glance inside provided Sam with the knowledge that Dean wasn't there. Sam swallowed and snuck onwards, gun at the ready. He was half way to the kitchen when the lights came back on again. The younger Winchester flattened himself against the wall, gun held up, ears strained to pick up even the slightest noise.

Soft footsteps resounded in the distance, headed towards the library. Equally quiet, Sam made his way in the same direction. When he reached the library, Sam froze in the door frame. Dean was crouched over something on the table in front of him. A cursory check of the room told Sam that Dean was alone and he relaxed.

"What's that you got there?" Sam asked as he approached his brother, tucking his gun in the back of his pants. Dean looked up, and if he was surprised to find his brother there, he didn't show it.

"Hey," he greeted. "Found this in the back-up fuse box. Sam, I think I might have stumbled across something here."

Sam frowned slightly, hearing the subliminal excitement in Dean's voice. "How so?"

"Amara," Dean simply said.

"Amara?" Sam repeated. Dean nodded and pointed at the still rolled up scroll. Sam picked it up and scrutinized the word scribbled on the surface.

"Dean, at best this word here would say 'apawa', and I couldn't even begin to provide the possible meanings. This looks like someone scribbled it down rather hastily. The w is all messed up, the p is backwards... so maybe it's even an untidy d. Apawa, adawa... Amara?"

Dean's eyebrows shot up at Sam's words and a smile spread across his face, growing wider with each word Sam uttered.

"What?" Sam couldn't keep an irritable vibe out of his voice. Dean was looking at him in a way that Sam didn't like at all, almost like a teacher would look at an ignorant child.

"This is precious," Dean grinned, his voice dripping with satisfaction. "I know something my geek brother doesn't. Is that how you feel all the time, Sammy?"

"What?" Sam repeated, feeling exasperation creeping up his spine.

"Let me savour this," Dean declared, taking a deep breath and putting on a smug smile. "This, little brother, is Etruscan. The Etruscan letters are similar but not identical to ours. While the A is practically the same, the M resembles a W and the R looks like a mirrored P..."

"Which would still make this word Arama, not Amara," Sam interjected.

"Ah, but Sammy, don't you know the Etruscans were writing right to left?"

"They were?" Dean nodded. "Alright, Dean, how do you know about Etruscan?" Sam was curious. He'd always thought Dean wasn't really interested in stuff like that.

"Hey, just because you went to Stanford doesn't mean I never learned anything, Samantha. I read. I research. And I remember things. This, I remember because Caleb had a book on Etruscan and he had me search out things in it for him which he needed for a case."

"Wow, Dean, I have to say, I'm impressed." Sam saw Dean snort and shook his head. "No, really, Dean. I know you're not dumb, but this isn't every day hunter stuff or thereabouts. Sure, I heared about Etruscans once or twice, but I never knew anything about their writing. Is the rest of the scroll in Etruscan, too?"

"Let's find out," Dean said and carefully removed the ancient rope that held the paper together. Meanwhile Sam had fired up his laptop and pulled up a few pages on Etruscan translation. The brothers studied the neatly written page for well over an hour, Dean putting down the words on a note block, Sam looking up the translation. Finally they stuck their heads together, deciphering the context. When they reached the end of the manuscript they looked at each other.

"Dude, there is a way to kill Amara," Sam stated, incredulous.

"Yeah," Dean agreed, slightly less enthusiastic, "but it sucks out loud."