The CW's fantasy horror series "Supernatural" had just finished airing its Episode 6 for Season 12 and fans and loyal viewers of the series are excited on what's going to happen next.

The series is taking a break for a little while over the celebration of Thanksgiving, so viewers can't watch the upcoming episode until the first week of December. But despite this, several rumors and speculations about the series' upcoming events are circulating online.

As a recap by The Daily Voice News, the sixth episode told the story of Asa Fox, who was a boy that Mary Winchester (portrayed by Samantha Smith) had saved from a werewolf attack. Later on, it was revealed that Asa was hanged, to the shock of Mary.

Dean and Sam Winchester, portrayed by actors Jensen Ackles and Jared Padalecki, visited Kim Rhodes' character Jody, a sheriff and ally of the Winchesters, and found out that she also knew Asa Fox.

Forward to the next scenes, it was revealed that Bucky, Asa's close friend was the one who killed him. Jody, who was possessed by Billie the Reaper, portrayed by Lisa Berry, made the shocking revelation. Mary had then presented an offer by the reaper to go back to heaven but she hesitated. 

These events had led to the speculation that Mary Winchester may bid goodbye to her sons in the seventh episode, according to International Business Times. As she feels that she is not fit on Earth, Mary might accept Billie the Reaper's offer and go back to heaven.

Additionally, Cartermatt reported that the official synopsis for the seventh episode of the series suggested that Lucifer, portrayed by Rick Springfield, will be back and will disguise as Vince Vincente, the rock star, to be able to kill everyone. He will reportedly realize that through this, he can get the people to do everything he wants and will kill them later on.

But of course, the episode will still be as fun and dramatic as the hunters and the Winchester brothers will find a way to stop the possessed rock star's madness.

Supernatural Episode 7 of Season 12, will air on Thursday, Dec. 1, 2016 on The CW.