This story is almost a follow up of the fic I began several years ago 'FOR HE IS MY SHEPHARD'. Detailing an OC angel-Elba. Her decision to stay on Earth with Castiel and her relationship with him. I never finished this fic but I'm using it as a sort of basis for this.

To summarise, in my story, Elba was a new angel and whilst in heaven Castiel was her mentor. She came to find Castiel a while after he came to earth. She decided to stay on Earth with Castiel as feelings between them developed and she revealed to him that she was losing her grace and would soon become human. The last thing I wrote in that fic was that Elba and Castiel kissed, revealing that they both would never leave one another.

What would have preceded this fanfic- When Castiel absorbed the souls at the end of season 6 he believed he was protecting Elba, but the power became too much for him and he pronounced himself, the new god. As Castiel goes around the globe to try and finish his 'work', it turns out Elba is only one able to stop him. She helps Dean and Sam summon Death and together they convince Castiel to return the souls back to Purgatory. Elba later watches in horror as Castiel's vessel is lead to the lake where it disperses into black liquid. She later picks up his trench coat from the riverbank and carries it back with her in tears. Having nowhere else to go she turns to the Winchester's for help but they realise she will be too much of a burden for them on the road now that her grace is almost gone. They leave her at Bobby's but after a week, distraught and alone she disappears.

The following takes place during Season 7.

"What the hell do you mean she's gone?" asked Dean in a gruff tone causing Sam to look up in alarm.

The two Winchester's had just pulled over at a small, run-down gas station when Bobby had called.

"Well did she say anything?" said the eldest Winchester knitting his brows together.

Sam moved around the Impala coming to stand in front of his brother, a concerned look upon his face.

"Have you been into town? Tried looking for her?"

Dean pulled the phone away from his ear slightly. It was obvious Bobby didn't like being accused in such a way.

"Alright, alright," muttered Dean, glancing up at his brother. "We'll be back as soon as we can. She can't have gone far by herself. Call me if you find her."

Dean hung up the phone and lifted his head up with a sigh.

"Elba's gone AWOL," he said, rubbing his tired face with his hand.

Sam frowned. "And she didn't tell Bobby where she was going?"

Dean shook his head.

"You think someone took her?" asked Sam concernedly.

"I don't know, man. I know she must be going through some shit with Cas gone," said Dean with a soft sort of pity in his voice.

"Cas leaving her you mean," said Sam folding his arms across his broad chest.

Dean bit his lip but didn't reply. He knew how the female angel must be feeling having Cas gone. They had been so close. Romantically close from what he'd seen over the past few months. Barely leaving each other's sides. She had only agreed to stay here on earth for Castiel and now with him gone, what was there for her here? She was trapped here alone, with no way to get back home.

Dean opened the door to Impala and slunk into the driver's seat.

Sam stared into a space for a long moment before joining his brother.

"I've been drivin' all day and half the night," said Bobby taking a slurp of coffee as he and the Winchesters sat at the scrubbed wood table in Bobby's kitchen. "She aint walkin' the streets that's for sure . Hell, I don't know where she is."

"And she left no clues?" asked Sam, tilting his head slightly. "Nothing to suggest where she might have gone?"

"Like I said to this Idjit on the phone, she didn' say nothin', she didn' leave nothin'. She was just gone," snapped Bobby.

He glared at the two brothers. He wasn't stupid and despite his gruff demeanour he had had a soft spot for Elba. She had been vulnerable and frightened, Bobby had seen that. She had been just like the two boys had been as kids. So he had agreed to take care of her whilst the Winchesters were on the road. And now he was angry at himself for letting her out his sight, long enough for her to run off.

"I guess we can go out, ask around, see if anyone's seen her?" said Sam, glancing at his brother.

For days the boys searched, asked around the nearby towns, even flashed people a blurry photo of her and Cas that Dean had taken on his phone. But the angel was nowhere to be found.

They didn't want to give up but it felt like they had no choice and when a case fell into their laps they said goodbye to Bobby and made him promise to call them if he heard anything about her whereabouts.

And so the two Winchesters got into their car and drove.

Three months later

"I don't like the idea of Cas relying on Meg so much, do you think she's using him?" asked Sam as the Impala sped down a darkening forest road.

"Of course she is," snorted Dean. "That Demon bitch has got her claws so far into him and that stupid son of a bitch can't even see it."

Sam pursed his lips. "It's like she's the only one he trusts."

Dean shook his head. "But that's not Cas is it? I don't know what happened to him but he doesn't know what he's doing."

The Impala skidded as its wheels left the soft dusty track and met with an asphalt road. They had been driving for hours the sun falling lower and lower in the sky.

"I need to stop for gas," said Dean, his eyes flicking towards his dashboard. "and something to eat."

Sam murmured in agreement. His thoughts still on Castiel and Meg.

Ten minutes later they pulled up at a small diner on the outskirts of town. 'Casey's Diner' the sign read, in large white letters.

The two Winchester stepped out of the Impala, stretching and groaning as they did so.

"Man, I am starving," said Dean rubbing the back of his neck as they heading towards the door.

Inside, they were met with a lovely smell of cooking. They took a booth beside the door and Dean glanced at the menu.

"Well I know what I'm getting," said Dean slapping the menu down in triumph. "A Casey's double deluxe bacon cheeseburger with EVERYTHING."

Sam almost rolled his eyes as a blonde waitress appeared at their side.

"Hello, welcome to Casey's. What can I get you both?"

That voice.

Sam and Dean looked up just as the waitress pushed the hair out of her eyes and glanced up at them too.

Her blue eyes widened.

The two Winchester's gaped.

"Elba?"

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