His body is overtaken by Leviathan, who tells them that Castiel is not there anymore. He says the angel is dead.
==[[7.02 Hello, Cruel World]]==
Dean and Bobby are confronted with one of many Leviathans that is occupying Castiel's vessel; however, [[Jimmy Novak]]'s body cannot contain them all. It is rapidly deteriorating and so, rather than finish them off, the Leviathans retreat. Dean and Bobby follow and find Sam, who is caught up in a hallucination involving Lucifer. Dean snaps Sam out of the hallucination, and the three of them follow the Leviathans, still occupying Castiel's vessel, to a nearby reservoir.