I'm sad to say this is the final chapter. But more stories set in this universe will undoubtedly be coming your way some time soon ;D

"Are you sure you're ready, Sam?" Trubel asked worriedly as Sam kept his eyes fixed ahead of him. The two of them and Nick were walking down the seemingly endless corridors of the bunker towards where Dean was trapped. The effects of what Rosalee had given him should have worn off by now and Sam wanted to start the ritual as quickly as possible. But as much as she trusted Sam, Trubel wasn't sure he would be able to do what was necessary. He had told her and Nick how the ritual worked so Trubel was preparing herself to have to end what Sam was about to start. The trio entered the storeroom and Sam walked directly over to the shelving units before forcefully shoving them out of the way.

"Home sweet home" Dean smirked up at his brother as soon as he stepped into the room. Trubel couldn't stop the sudden shiver that shot down her spine at the cruel tone of Dean's voice.

"A little cold?" Dean laughed mockingly, his eyes locking onto Trubel. Nick was about to say something to defend her but instead, he had to quickly grab her arm as she tried to lunge towards Dean. The two Grimm's shared a brief glance before Nick let go and Trubel stepped back. But the glare on her face refused to soften. Silently, Sam pulled the first injection of human blood from one of the bags on the table in front of him. He set his lips in a determined line and tried to not look into Dean's eyes as he walked over and pressed the needle into his brother's arm. But just before he had a chance to push the blood into him, a voice sounded from the door.

"Hello boys"

Sam's eyes widened as he immediately recognised who was stood behind them.

"How did you find us, Crowley?" Sam asked, slowly turning around to face the demon.

"A little fox friend of yours told an associate of mine. She did take a bit a persuading though" Crowley smirked, stepping further into the room

"Rosalee! If you've hurt her, I swear to God-" Trubel almost growled, throwing caution to the wind and gripping onto her machete.

"Oh don't worry, no lasting harm was done," Crowley said as he waved his hand nonchalantly towards Trubel, completely ignoring the weapon in her hands.

"What do you want?" Sam questioned.

"I believe you have something of mine," Crowley said as he nodded towards Dean, who was still tied to the chair in the middle of the room.

"He belongs here" Sam stepped between Crowley and his brother, blocking the demon's path.

"He isn't your brother anymore, Moose. He's a demon, and that means he belongs with me"

"If you want him, you'll have to go through us," Nick said as he and Trubel stepped either side of Sam.

"No, I really don't" Crowley smirked to himself before flicking his hand to the side, sending both Grimm's crashing into the shelves of books behind them. Instinctively, Sam ran over to them to check if they were alright.

"Trubel! Nick! Are you okay?" Sam asked frantically as he knelt down beside them.

"Yeah, I think so" Trubel groaned as Nick sat up, rubbing his head.

"Um, Sam..." Nick pointed over the hunter's shoulder to where Dean had been tied up. But when Sam turned around there was only an empty chair; neither his brother nor Crowley in sight.

"Damnit! Crowley must have freed him before he ran" Sam sighed, running his hands across his face.

"Who was that guy anyway?" Nick asked, leaning down to help Trubel stand up.

"That was the King of Hell"

"Wait, as in the devil?" Trubel spluttered but Sam shook his head.

"No, Lucifer and Crowley are two very different things. Crowley is just a demon who happens to run hell. And it seems he wants my brother to help him"

"We'll find him again, don't worry" Trubel reassured her friend as Nick's phone began to ring. A few moments later, Nick turned back around to face the other two.

"That was Hank. A body has been found back home, he thinks it might be Wesen related"

"But-" Trubel started but Sam put his hand on her shoulder.

"It's okay, I'll be able to find Dean on my own. You guys are needed elsewhere" he smiled softly down at her. She nodded slowly in reply then pulled him into a hug.

"You be careful, Sam. Promise?"

"I promise" Sam chuckled softly and ruffled Trubel's hair in an attempt to cheer her up. He walked the two Grimm's to the door and waved goodbye until Nick's car was completely out of sight. Then he turned around and went back inside. Sighing, he sat down on one of the chairs by the entrance and stared at the blank wall in front of him. He had been so close to getting his brother back and Crowley of all people was the one to stand in his way. And now he was back to square one... again.

"What were you thinking drawing attention to yourself like that?!" Crowley yelled, pacing back and forth. Dean leant back in his chair, smirking at Crowley but not saying a word.

"Who even were those two with your brother? New hunters he's recruited?"

"You wouldn't believe me if I told you," Dean said quietly, placing his hands behind his head and closing his eyes.

"You know who they are?" Crowley asked, the surprise evident in his voice.

"I know what they are, yes" Dean corrected him, enjoying the chance to taunt the King of Hell.

"What do you mean by that?" Crowley glared down at him, determined to get an answer.

"Grimms" Dean said shortly, allowing himself to open his eyes to glance up at the shocked expression on Crowley's face.

"They don't exist, they're myths" Crowley shook his head.

"Believe what you will" Dean sighed before standing and walking out the room, undoubtedly towards the closest bar. Crowley frowned to himself as he stared down at the chair where Dean had just been sitting. He knew Grimm's weren't real; they couldn't possibly exist. But maybe once things had settled down and he had Dean more under his control, he should investigate further into the matter...