Disclaimer: I don't own Supernatural and I don't own Glee. I also don't own a conversation that takes place in this fic between two characters. (belongs to my friend Erin - explained in notes in part 1)

Part 2:

"I still think you should kill him."

"Bas leave it alone."

Hannah looked uncertainly from Cas to Sebastian, then back to Cas. "You're doing the right thing - letting him live." the three looked into Metatron's cell briefly. "It's what a leader would do."

"I'm not a leader, Hannah." Cas replied sadly. "I never was."

She was quiet for a moment.

"You know...even a father shows mercy." she said softly. "Ours did numerous times with you. And maybe...maybe letting him live with his guilt is better in the long run."

Cas was quiet for a moment.

"Agreed."

Blaine was so fucking grounded.

Okay no the kid was nineteen now, and grounding no longer applied, but that didn't stop Dean from being pissed. He and Sam were only trying to help for God's sake!

Speaking of Sam...Where the hell was his brother?

Dean pulled the Impala up to the front of the homeless encampment and put the car in park before getting out to investigate. He'd barely gone ten steps before he saw Sam emerge, holding something in his arms.

No...not something. Someone.

His heart nearly stopped.

"No. Nononononononononono. No!" it was all he could get out as he bolted toward them.

Sam was crying.

"I'm sorry," he sobbed as Dean took Blaine from his arms. "Oh God, I'm so sorry...I got there and - Metatron -"

"That son of a bitch," Dean growled, his voice cracking. "Blaine...Oh my God..."

Sam cast a nervous eye around them at the crowd of homeless people starting to move toward them.

"Dean," he said thickly. "Dean we gotta...we gotta take him to - we gotta take him home." he wiped his eyes and put a hand on his brother's shoulder. "Let's take him home."

"You should have been there!"

"I got there as fast as I could, honest!"

"Not fast enough!" Cas tightened his hold on Sebastian as he lunged at Sam and Dean. He was angry, hurt - grief stricken. "And where the fuck were you?!" Sebastian screamed at Dean. "Why couldn't you have put a blade through the bastard's back?!"

"He knocked me out!" Dean yelled back. "I mean - shit, Bas, do you think I would've let him face Metatron by himself?!"

"Everyone shut up!" Cas yelled, and he shoved Sebastian away from him before sitting on Blaine's mattress and reaching for his hand.

Dean swallowed the lump in his throat and moved to his husband's side.

"I'm so sorry, Cas." he whispered brokenly. "I should have been there - I should have protected him -"

"I know." Cas said hoarsely. "I know, Dean." he looked around and noticed that Sam had left Blaine's bedroom. "Where's Sam?"

Sebastian ran a hand through his hair and headed out of the room. "I'll find him."

"What the fuck is wrong with you?"

Sam finished his glass of liquor and reached for the bottle again, only for Sebastian to smack his hand and grab the bottle himself.

"Blaine's dead."

"Yeah I know," Sebastian snarled. "Newsflash: he's my boyfriend. This is hurting me as much as it is you." Sam didn't move from his chair.

"It's my fault," Sam whispered. "If I'd gotten there sooner - if I'd done something - If I'd hurt him before he stabbed Blaine -"

Sebastian sighed. "Look...I shouldn't have said - you did your best, Sam. You tried to help him...and he knew that."

Sam stared down at his empty glass. "He said he was proud of me."

Sebastian smiled sadly. "Sounds like Blaine."

Sam nodded.

Sebastian was silent for a moment.

"I think Cas wants to talk to you. Let's go back to Blaine's room, okay?" Sam nodded again. "And Sam?"

Sebastian smiled and Sam could see the tears falling down his cheeks.

"We'll get him back."

Sam nodded and tried to smile, but was unsuccessful.

"Yeah. Let's go."

When they got back near Blaine's room, they could hear yelling. Yelling and - oh God, was that - was that Blaine's voice?!

What the hell was going on?

Sam and Sebastian ran in in time to see something that shocked the hell out of them. Cas had Dean pinned against the wall, Ruby's old knife lying on the carpet a few feet away.

"You're not Blaine!" Dean was screaming. "What'd you do to him?! What'd you do to him?!"

Blaine was curled up in a ball on his bed, staring at his father in shock.

"It's me, Daddy - Honest to God it's me!" he was yelling.

"Oh my God." Sebastian breathed, horror struck.

Blaine's eyes - they weren't his. They were that deep, demonic black.

"Bas?" Blaine looked around and tried to smile. "Bas, I'm okay. I'm okay, honest!"

Sebastian couldn't speak - all he could do was stare in horror.

"What the hell is wrong with all of you?!" Blaine looked desperately at his uncle. "I'm fine, Uncle Sammy - I'm okay - you didn't make a deal, did you?" Sam shook his head wordlessly.

What the hell was going on?

He felt Sebastian pushing something into his hand. When he looked down, he saw it was a small mirror.

His hand shook as he slowly approached the bed and handed the mirror to Blaine. Blaine frowned, but looked at his reflection. His expression quickly morphed from confusion to horror.

"No!" he screamed, and threw the mirror across the room, right into the opposite wall where it shattered to pieces.

"Son of a bitch," Sam muttered, watching in horror as Blaine began to claw frantically at his body, up and down both arms, across his face, down his chest.

Blaine wasn't possessed, he was the demon.

"Get it out of me!" Blaine screamed. "Dad - Papa - Someone get it out of me!"

Cas let go of Dean at that and at the same time that Sam moved forward, he did too. Sam was on the bed in seconds, quickly grabbing Blaine around the chest and pinning his arms to his sides.

Cas threw himself over Blaine's knees, pinning them down to the mattress.

Blaine stopped screaming. He looked desperately at his father, who was slowly approaching the bed.

"What happened to me?" he choked out.

Dean lifted a hand and reached toward Blaine, his hand trembling as it came to rest in Blaine's curls and stroked the dark, blood matted hair softly.

"I don't know baby," he said helplessly. "I don't know."

"What happened, is that you became a demon, Blaine."

Dean turned around quickly at the sound of the new arrival.

Crowley.

Fuck.

"W-What do you mean, became a demon?" Blaine sounded like he was on the verge of a panic attack. "I died!"

The King of Hell nodded and promptly sat himself in a chair in the corner of the room. "Yes you did. Rather, the you that was human did." his eyes settled on Blaine's. "But before I say anything else I think it's best if you relax."

"What?!"

"Blaine," Crowley said calmly. "Your eyes will go back to normal but you need to relax."

Blaine exhaled and closed his eyes. A few moments later he opened them again. and Sam, Cas, Dean and Sebastian all sighed in relief.

Blaine twisted his head around to look at Sam. "Better?"

Sam smiled and the protective restraint he'd held changed into a comforting hug. "Yeah. Much better." he glanced at Cas. "You can probably get off his legs now, man."

Cas flinched and then nodded before moving back to stand with Dean. Blaine looked over at Crowley.

"Spill." he said abruptly.

Crowley arched an eyebrow. "Bossy, aren't we?" he rolled his eyes. "I never lied to you about the Mark, Blaine. Never. I just didn't tell you the whole truth."

Blaine glared at him.

"And that was?"

"A story. About Cain." Crowley replied. "It was supposed to be a rumor...I didn't believe it - at least until you left your damn cronut behind uneaten." he paused. "Apparently, he too was willing to accept death, rather than becoming the killer the Mark wanted him to be. So he took his own life with the Blade. He died." Blaine's eyes widened at that. "Except, as rumor has it, the Mark never quite let go. The Mark is what brought you back...but not human. Your soul is gone, corrupted by it."

"I -"

"If you're asking if there's a way to reverse it, I'm afraid not." Crowley stared at Blaine impassively. "If that was the case Cain would have found it long ago."

"But..."

"I can help you control it...help you master it," he said swiftly, and Blaine felt Sam's hold on him tighten and Sebastian was suddenly scrambling up onto the bed next to him.

"Fat chance," growled Dean, moving to stand in front of Blaine. "I don't want you teaching him a damn thing, you understand?"

"Dad -"

"Fair enough." said Crowley coolly, his eyes moving from Dean to Blaine. "Though it is Blaine's decision, so I'll let you marinate on it a bit, hmm, pup?"

Blaine made a face. "Don't call me that."

Crowley just smirked and vanished. Silence reigned before Blaine spoke again.

"So...what now?"

"We figure out how to work around this," said Sam.

Dean folded his arms over his chest. "And you don't tap into your powers unless we're hunting. Capisce?"

Blaine sighed, but nodded. He looked at Dean hesitantly. "You don't hate me?"

He stared at Blaine incredulously. "What? Why the fuck would I hate you?"

Blaine willed himself not to cry. He had to stay strong for his family.

"Because I let myself become this." he said miserably, scratching at the Mark on his left forearm absently. Sam grabbed his hand to stop him. "Because I'm something we - I'm not human. I'm...I'm a piece of garbage."

"Hey!" Sam gave him a little shake. "I don't want to hear you say that alright? None of us do." he glanced at the others, who nodded. "You're back, alright? And I think we should focus on that - just for today. We'll figure out the Mark - your demonic stuff - that can wait til tomorrow." he smiled a little. "Besides...how long has it been since you kicked my ass at Mario Kart?"

Blaine actually smiled.

"Too long."

"Alright then." Sam grinned. "Go set it up, alright?"

Cas hesitated and then sat up before calling Blaine back after he'd made it through the doorway. "We'll find a way to fix this, Blaine. I promise."

Blaine nodded and gave his papa a small smile. "I know."

And that's that! Hope y'all liked it. Reviews welcome. No flames please!