Little Lion Man
"It was not your fault but mine, and it was your heart on the line, I really f**ked it up this time."
Sam looked up, shocked as Castiel stalked towards him, murderous intent in his blue eyes, he curled up into a smaller ball, hugging his knees, trying to ignore the hallucination.
Dean looked through the small window, wincing as Sam curled smaller, shaking his head slightly. He jumped as Castiel appeared behind him, patting his shoulder awkwardly, still not used to human gestures. "It was not your fault, Dean. I'm sorry I put you through this, now I have to make it right." Castiel disappeared again, Dean shook his head and turned to look at Sam once more before leaving but his eyes caught a flash of brown and he rushed to stop the angel but found he could not open the door. He could only look on shocked.
"Sam, I'm sorry." The gentle voice did not match the hallucination, the looming figure of Castiel pulling out his blade. "This might hurt, a lot." There. Those were words he knew. A sly grin spread over Castiel's face. "I'm sorry." Again, gentle. He tensed, ready for the blow and was shocked when a hand pressed to his forehead. The hallucination slowly faded, leaving him able to see the room, just as Castiel collapsed, blood pouring form his nose.
"Cas?" he jumped up from the bed, hallucination or not, this was his friend in pain.
"S-Sam." His voice broke slightly. "I'm sorry."
Dean burst through the door and ran to Sam. "Sammy! Are you alright?"
"Yes, Dean, but I'm more worried about Cas."
The angel had started twitching, almost nervously, his eyes flashing quickly from side to side. He shook his head and stood up, swaying slightly.
"Come, we must leave before they realise Sam is up." He grabbed their hands and transported them to the motel where Dean had been staying.
Lucifer smirked in the corner of Castiel's vision, but he ignored him, focusing on the job instead. He had to help Dean and Sam, they would have never been able to beat the army of demons without him helping. His eyes caught Dean's, they both smiled before Dean's look turned to one of horror.
"CAS!" Castiel started to turn but was distracted by the appearance of Gabriel next to him. He froze. Just long enough for the blade to slide into his chest.
"Close your eyes!" The words were screamed, the words melting into pure noise as his dying light burst the vessel, wings flying outwards, scarring the floor.
When the light cleared Dean ran over to the fallen body of Jimmy Novak, eyes full of tears as he saw the shadows of glorious wings etched into the floor.
"I'm sorry Cas."