Darkness

S1 E10: Cassie turns to Adam when she uncovers a secret about herself that she needs kept from the rest of the Circle, including Diana. Meanwhile, Diana is thrilled when her grandmother Kate (guest star STEFANIE KRAMER - Hunter) drops in for a visit, but Charles is suspicious of his mother's motives after Kate takes an unusual interest in Cassie. Meanwhile, Faye recruits a mysterious stranger named Lee (recurring guest star GREY DAMON - Friday Night Lights) to help her with a spell that could change the balance of the Circle forever.