In the coven, she mainly remained quiet. Secretly she wished to leave the coven, having been forced into it by her father.
Sylvia grew up within the Braşov Coven . Her mother died shortly after her birth, leaving her to be raised by her father, and she was mainly used by him to "teach vampires a lesson" via her ability. One of example of this was when her father made her merge together the bodies of Lola and Lotan Calwin. However when she unmerged them, she did so incorrectly, and it resulted in Lola being a full vampire and Lotan being a full werewolf. Sylvia was killed by Athena during the battle against the Children of the Moon and the Firelock Coven.
Being a vampire, Sylvia possessed natural skills such as enhanced strength, speed, stamina, agility and senses. She was naturally beautiful, like all vampires, and inherited some of her father's strong vampiric skills.
Sylvia was a member of the Braşov Coven. Her father was the leader of the coven.
As a vampire she was beautiful, with brown chocolate eyes that matched her chocolate brown wild hair. She had light tender white skin and looked fragile.
The name Sylvia is latin and means "woods". Her surname Tepes means "one who impales" and could refer to the nature of her coven or even herself.