Alpha and Omega
Annaleise Marie

Summary: On a fairly routine hunt, a strange girl stumbles out in front of the Impala. When Cas recognizes her and her sister for what they really are, the Winchesters and company are hurtled once more into a battle for their lives, and the lives of billions of unsuspecting humans. [not a/b/o. story-centric.]

Chapter One: The Sound

AN: I blame a lifetime of sitting through Catholic funeral services for this one.

Of course I do not own Supernatural. At all. I just like to create a cheap imitation of sorts.

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Ego sum Alpha et Omega principium et finis dicit Dominus Deus qui est et qui erat et qui venturus est Omnipotens.

I am Alpha and Omega, the beginning and the ending, saith the Lord, which is, and which was, and which is to come, the Almighty.

X

Shelby Adkins was at a complete loss. For the last eight years, she had been the mother of two perfectly healthy, beautiful, twin girls. Charlotte and Jennifer Adkins were astoundingly normal. Their infancy and early childhood had been astoundingly normal. They were just a normal little family in a normal little house in a normal little suburban town in Vermont.

Well, normal until that night, a few months ago, when the Sound hit. That was the only way Shelby had been able to describe it. There had been a piercing noise, so loud it brought her to her knees, her hands clapped tight over her ears, her eyes screwed shut as the glass of the shower door and the mirror in her bathroom shattered, spraying her with glass.

The Sound had ended as quickly as it began, leaving her with only a dull ringing deep in her ears that she knew to be just a phantom of the original noise. She picked herself up shakily and gingerly stepped across the glass-dusted tile, thankful that she had slipped on her slippers when she had sleepily left her bed for the bathroom.

She felt something wet trickle down her face to meet her top lip, and she brought her finger to it gently. She pulled her finger away to see blood. She had a nose bleed. Given the state of the mirror, she supposed she should just be glad her skull was still intact.

Shelby was in shock. She didn't know what to think. What were you supposed to think when a Sound hit your home, shattering everything, nearly killing you?

It hit her like a ton of bricks. Charlotte and Jennifer.

Abandoning her careful movements, Shelby tore through the upper floor of the house, noting with every glance around her that each and every window in the house appeared to be blown out. The pictures on the walls were distorted behind spiderwebbed glass. The saltwater fishtank in the hall had disentigrated entirely, flooding the hardwood floor. The fish, poor bastards, hadn't flopped about in a desperate bid to fill their gills, but it was little comfort given the states of their bodies. Or, what was left of them.

All of this was pulled into Shelby's mind and then pushed back out as she reached the twin's bedroom door. She grabbed the knob, twisting and pushing, stumbling into the room.

She came to a sudden stop, hardly believing her eyes.

Everything in the room was normal. The wide window between the two beds was still intact, open to let a gentle breeze in. Shelby's eyes roamed to Charlotte's collection of snowglobes, then to Jennifer's porcelain dolls. None showed any sign of the damage that the rest of the house had suffered.

How had the Sound not touched this room? How was everything so unnervingly normal?

Well…almost everything.

Charlotte and Jennifer were sitting up in their beds, backs rigid, expressions blank, eyes glassy.

Shelby hurried over to them, sitting on the edge of Charlotte's bed, one arm wrapped protectively around her as she held her other hand out, beckoning Jennifer to her. "Are you okay? Did that sound wake you up?"

Jennifer didn't look at her. She turned her head slowly to Charlotte and realized that she hadn't reacted to her mother's touch or voice, either.

Shelby swallowed hard. "Girls?"

Was this a dream? Was she dreaming?

She jumped when she felt Charlotte's hand on her cheek. She looked down at her daughter, whose eyes had lost that glassy quality, focusing sharply on her. Her expression was soft, almost pitying, and Shelby opened her mouth to speak—

The next moment she jerked awake in her own bed. Disoriented, her wild gaze raked the room. The windows were intact, and through the ajar bathroom door, she could see no glass on the tile. The pictures on the walls were likewise undamaged.

She got to her feet, hurrying to the hall, and stopped in her tracks at what she saw.

The fish tank stood, just where it always did, the filter bubbling diligently, the brightly-colored fish drifting lazily through the water, occasionally bobbing up to pull a piece of food from the surface.

Had she been dreaming?

She must have been. She had dreamed the Sound, and the destruction, and the twin's strange behavior. She was sure of it. It had to be.

But as much as she tried to reassure herself, one thing was for certain: over the following months, Charlotte and Jennifer refused to utter a single word.

X

The girl who used to be Charlotte Adkins opened her bedroom window quietly, raising the pane of glass completely. Or…her body used to be Charlotte Adkins.

It didn't matter. The body standing beside her was Jennifer Adkins. The being beside her was her sister, as well. She didn't know their names, what they were called these days. They had gone by many names, and it had been millennia since they had last walked this earth.

They had arrived on orders, with no plan in place that they had been informed of. But now they could sense one. And they knew they needed to find it. They could feel it, as surely as if they had been instructed to do it.

Castiel, she thought. Her sister nodded.

One after the other, they stepped through the window and dropped gracefully to the grass below. They joined hands as they walked into the night.

X

"Why's it always gotta be witches?" Dean groaned, his hands clutching the steering wheel of the Impala tightly. He hated witches. Sure, most of what they hunted was a monumental pain in the ass, and they all had to be taken care of, but the witches were the worst. And come on, Dean had gone up against gods. So that was saying something.

Castiel wrinkled his brow in confusion. "It is not always witches, Dean. Have you forgotten the demons and ghosts and vampires and—"

Sam shook his head, glancing pointedly at Castiel. The angel shook his head. He wasn't sure what he had done wrong, but he had learned to take the cues that he had missed something a little better over time.

"All I'm saying is I'd take a pissed off ghost over a witch any day of the—"

"Dean!" Sam cut off his complaining, his eyes nearly bulging out of his head.

Dean slammed on the brakes and jerked the wheel hard, causing the Impala to drift with the loud squeal of tires and the acrid smell of burning rubber, coming to a halt just inches from the girl who had run into the road.

It took the hunters a second to react, but Castiel was already out of the car, staring down at the girl, who smiled gently back up at him. She had dark hair, almost black, that reached down to her waist in loose curls, and bright blue eyes.

"Am I crazy, or does that kid look like…" Dean trailed off. It wasn't possible. Was it?

"Cas? Yeah, she kind of does." Sam looked just as freaked out as Dean felt as he fumbled with his seatbelt, hurrying to get out of the car.

The hunters approached Cas and the girl warily. She was still smiling up at the angel, but his face was set in its usual stoic mask, giving nothing away.

After a tense minute he spoke. "Alpha. I do not think it has changed." He waited a moment, his eyes crinkling at the corners like he was thinking hard. "Omega. Where is she?"

There was the sharp snap of a twig from the side of the road. The trio whirled around, and for a moment Sam and Dean thought that the girl had ghosted out on them and reappeared on the shoulder. But this girl's hair was cut slightly shorter, and her sweater was black while the other's was white. Call it a hunch, but they didn't think ghosts were big on altering appearances.

"Cas, who the hell are they?" Sam asked, trying to keep his voice steady. The way the second girl was looking at him was unnerving, her eyes blank and emotionless as she stepped closer to them.

The look of intense concentration was once more pulling at Cas' features. "They are Alpha and Omega. They are lesser known celestial beings."

"Angels?" Dean sounded irritated. Angels showing up rarely ended well for them, after all.

"No. They are not warriors. They are messengers. Collectively they are also known as the Voice of God. Alpha can carry any news. But Omega…" Cas' expression turned to one of regret, as though he didn't want to continue. "Omega is the harbinger of Armageddon."

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AN: First Supernatural fic, so please, please don't be too mean? Having said that, I do welcome concrit, suggestions, and such. Thank you so much for taking the time to read my story!