Who was John Blackwell?!?

That's the question Cassie is after on The Secret Circle, and she'll confront a man who ought to possess at least a few nuggets of truth for her this week: Ethan Conant.

Adam's father knew Cassie's dad well, right? He should be able to provide Cassie with the intel she needs, no? Starting with this question: did John Blackwell ignite the fire 16 years ago that killed so many of her friends' parents? Watch this exchange from "Fire/Ice" now:

Elsewhere on the episode, look for Lee to continue to work with Faye, as the bond between these two heats up, based on what Grey Damon told us in this exclusive interview.

Matt Richenthal is the Editor in Chief of TV Fanatic. Follow him on Twitter and on Google+.