S1, E15: Cassie is stunned when a notoriously evil figure from her past (recurring guest star JOE LANDO Dr. Quinn Medicine Woman) shows up on her doorstep, but her surprise quickly turns to suspicion when she is asked to return the medallion she found in the wreckage of the fire that killed their parents. Cassie storms off but is captured by Eben (recurring guest star SAMMI ROTIBI Lord of War) and his band of witch hunters. Jake offers to trade himself for Cassies freedom and when Adam realizes theyre in trouble he calls the Circle. Meanwhile, Faye and Diana are concerned when Melissa starts spending more time with Callum (recurring guest star MICHAEL GRAZIADEI).