When Castiel woke up he wasn't in the corridor any more, from what he could see (which wasn't very much, his vision was still blurry) there were two lines of beds, there was a large oak door and several windows. Dean was sat to his right and a stranger was pouring a pale liquid into a glass.
"Cas? Are you awake?" Dean sat up in his chair to get a better look at his friend.
"Uh... Dean? Where am I?" The ex-angel sat up.
"You're at the hospital wing." Suddenly everything came flooding back to the ex-angel.
"Oh... So I guess we need to talk..." Castiel looked at his hands, the hunter nodded.
"I guess we do."
Once the others had walked out of the wing the ex-angel turned to his hunter, after a moments silence he began to talk, "Do you remember when we met in the barn?"
The hunter smiled at the memory, "Shits gone to hell since then, huh?"
"Yeah... Well-" Castiel was cut off as Dean put his head in his hands and kissed him. When the two pulled away they were both blushing.
"Cas, I love you, but I guess that's kind of obvious" Dean rubbed his neck and looked at the floor.
"I love you too Dean, but what do we do about Lucifer?" Before Dean could provide an answer Dumbledore burst through the doors with McGonagall and few other teachers trailing behind him.
"Mr Winchester would you care to explain what is going on?" Dumbledore asked looking between the ex-angel and the hunter.
"Well, uh... The thing is... Me and Sammy are kinda like Michael and Lucifer's vessels..." Dean looked at the floor and braced himself for the questions that would inevitably be asked.
When no questions came Dean looked back up and saw confusion on the teacher's faces. "That is ridiculous! Why would two arch-angels choose two ordinary humans such as yourselves to be their vessels" Surprisingly is was Snape who spoke.
"Severus, we have already seen Sam himself be possessed by Lucifer. Why would he lie? But the most important thing at the moment is to ensure that all the students are safe." Dean abruptly stood up and everyone turned to look at him.
"How could you say that when it's my BROTHER who is being possessed by him!?"
"Dean, I'm sure Dumbledore didn't mean anything by it. We'll get Sam back somehow." Everyone turned to look at the former angel, most of them had forgotten he was there.
"Mr Castiel, I would also like to ask you what you mean when you say you are not an angel any more... Surely you cannot just become human..." Dumbledore turned to look at Castiel.
"Lucifer made me bleed and took my grace that way. My grace is like my essence and that is what gave me my powers. So if I was going to get it back, he would have to give it back, which I doubt Lucifer would ever do..." Castiel looked down at his hands for a moment until McGonagall spoke.
"So we have to get Sam back..." Everyone nodded.