Once Upon a Time took viewers on a near trip to Tallahassee this week, delving deeply into Emma Swan's past.

On next Sunday's "Child of the Moon," meanwhile, Ruby will come into focus.

The episode will center on Meghan Ory's character, as a full moon settles over Storybrooke and she must face her fear of turning into a wolf. Does she really deserve to die, as she utters below?

Elsewhere, Alan Dale's King George will threaten to expose Charming as the shepherd he truly is. Watch the official promo now:

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