How To Defeat The Evil Queen? – Once Upon a Time Season 6 THEORY November 27, 2016 Featured, Once Upon a Time, TV Chat How can the Evil Queen be defeated on Once Upon a Time Season 6! Here is our theory. Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on Reddit (Opens in new window)Click to share on Google+ (Opens in new window)Click to share on Tumblr (Opens in new window)Click to share on Pocket (Opens in new window)