While the Winchesters were meeting up at the Men of Letters Bunker with Cas; something sinister was brewing in the air during the darkest night. Then suddenly, out of nowhere, in the woods there are silhouettes of people in the shadows.
They were talking to each other and all you could hear of their words were about the Winchesters, bringing someone back, and blood. What they were planning was up to what John Winchester did.
There are four shadows that were planning to do something evil and to bring the boys around to their side. With Crowley out of the way, dealing with Amara a.k.a. the Darkness that came from the Mark of Cain, so that they could rise up Lucifer again, would be a piece of cake.
Seeing the silhouettes moving further under the darkness the two plotting up some kind of evil while you can hear the voices of two females and two males. Who were they?
We can see Cas fly out of the bunker with Dean and Sam still at the bunker, waiting for their father to arrive. The boys were still curious about their father, but have other things on their minds. Such as how to figure out how to get rid of the Darkness.
They went to the library so that they could start searching the bookshelves for information; while books that are on the table were already laid out to search for answers about the Darkness.
When Cas went to Heavens gate, a playground park. He sat down on the swings to figure out what or who would rise up John Winchester. Not sure Cas walked to the gate to go see Bobby Singer and ask him some questions and to know if you heard or seen anything about what has happened.
Walking down the hallway of white doors on each side heading straight to the door that holds Bobby.
Bobby was minding his own his own business in his heaven when all of a sudden he hears a knock on the door. Paranoid he grabbed his angels sword and pointed it towards the door to open it up. On the other side it was Cas and he told Bobby that it was him and not to hurt him. Inviting him in they sat down and settled down to figure out what is happening to the Winchesters now.
After giving Bobby the story of what was going on on earth they began to write down who brought John back to live.
Back to the woods with the shadows you can see they moved back out into the opening and was about to vanish into smoke. Before they did go to you can see that they were demons and that they have a grudge against the boys.
Want to know who the silhouettes were? They were demons named Alistair the torturer, A*** AKA Yellow Eyes who killed Mary Winchester, Meg Master, and Ruby. You guessed it they wanted to make a plan and to rise up Lucifer again.