Is a necromancer and did not believe the Derek, Chloe, Simon, and Tori's story about the Edison Group, and thought they were exaggerating and imagining things. She killed Gwen and Andrew before selling out the the 4 kids to the Edison Group.
At one point to her disgust she is bought clothes by Margaret who buys her clothes from the child section and is forced to wear pink pajamas with rainbows and unicorns on them.
Margaret takes Chloe, accompanied by Tori, to practice her necromancy skills in a graveyard, where she raises the dead and causes an earthquake, splitting the ground open itself. During this session with Margaret, Chloe and Tori inform Margaret that Chloe can raise the dead and summon spirits without the use of concoctions and rituals. She doesn't believe Chloe or Tori when they say Chloe shouldn't go anywhere near the graveyard because Chloe can raise the dead in which Margaret rudely dismisses and forces Chloe to practice. When Chloe summons a single ghost, she tests the power of her necklace by removing it. However, when Chloe removes the necklace, her "glow" becomes brighter, therefore attracting more ghosts. When Margaret tells Chloe to dismiss all of the spirits, Chloe manages to raise several dead bodies and causes an earthquake. Margaret is shocked and horrified of Chloe and becomes very scared of all of them and their powers, which she expresses to Andrew Carson.
Margaret and Russell end up killing Andrew and Gwen, then kidnapping Tori, Simon, and Chloe; all except Derek, who was hiding up stairs. Betraying them all, they take them to The Edison Group.