'The Vampire Diaries' Season 8 Spoilers Show Who Damon's First Victim Is; Can Sybil Stop Seline From Her Evil Plans?

"The Vampire Diaries" season 8 has got Damon still under the control of Sybil, and he has nothing in mind but to kill his only brother, Stefan. The series' trailer shows that Damon also intends to kill other characters at Mystic Falls.

The wedding of Caroline in "The Vampire Diaries" season 8 almost did not push through due to Damon's attempt to abduct her. Good thing, Caroline and Bonnie know how to take down a vampire and so Damon's plan failed.

Meanwhile, Caroline and Bonnie spoke about the latter's relationship with Enzo, who is in the same boat with Damon. The other happenings will be aired in the next episode of "The Vampire Diaries" season 8 as it highlights the situation of Sybil and Stefan, especially since Sybil has already mentioned about her search for his sister.

Sybil told Stefan that her sister is the evil one and admitted that her powers are used for the good. She then said that Seline's power is being utilized for wicked intentions, though her identity has yet to be revealed.

According to TV Guide, "The Vampire Diaries" season 8 will soon expose who Seline is, specifically about her nanny roles with Caroline and Alaric's children. She is apparently Satan's servant, and her plan involves the twins but is portraying a caring nanny.

"The Vampire Diaries" season 8 sources say Seline is an expert in keeping secrets and is making all efforts to involve the twins in her cannibalistic plans. The twins are said to be a powerful pair, who reminded her of Sybil and the memories they had. However, the twin differs in the way they were brought up since the children are being cared for by loving parents. Sybil and Seline, on the other hand, are considered outcasts.

The promo for the next episode of "The Vampire Diaries" season 8 also shows that Damon is also planning to get the life of Caroline, Bonnie, Alaric and others.

Can Seline be stopped from her satanic plans in "The Vampire Diaries" season 8?