Heather. We heard that name multiple times on this week's episode of The Secret Circle.

Who is this woman? What was her role in the tragic event from 16 years ago? What condition is she in now? Those questions will be answered on next Thursday's installment, aptly titled... Heather.

Watch the official preview here, as Cassie turns to Diana for help, but may need to rely on Faye instead. As long as she can meet Faye's price.