Sam was waiting for Castiel to arrive, since he needs help, as he flicks through some books he then heard the door open and then a familiar voice saying.

"..Got your message."

Sam's lets out a sigh of relief as he turns to look at Castiel...Did he just stumble inside and grab a piece of furniture to hold himself up?

"...Long your message..And I find the sound of your voice grating."

Castiel grumbles out as he puts his head to look up as if he's trying to feel better and Sam clearly notices this so he raises an eyebrow.

"What's wrong with you...Are you..Drunk?"

He asks the Angel, clearly confused.

"..No."

Cas replies, sounding annoyed at Sam suggesting that, before he takes a step forward and tries to grab onto the wall but he completely misses.

"..Yes."

He admits while he rests his head on the wall. Sam just looks at him, definitely confused now.

"What the hell happened to you?"

Sam asks, wanting to know what the hell is going on with Castiel.