I feel like we’re changing formula a little this year. Rather than the big bad (A.K.A The Black Fairy) being defeated in Episode 20, she’ll be defeated in this episode (19). And then since Episode 20 is the musical, it’ll basically have it’s own little plot that won’t matter to the overall plot of the season. Then Episodes 21 & 22 (A.K.A the 2-hour finale – TBC but likely) will be their own usual mini storyline which sets up the possible S7 too.