Once Upon a Time fans will be seeing a family reunion of some sort in the upcoming episode of Once Upon a Time Season 4. Queen of Darkness Maleficent and long-lost daughter Lily will be taking center stage in Sunday's episode.

According to the latest Once Upon a Time Season 4 spoilers, Maleficent may be getting her happy ending in this week's episode. The episode, entitled "Lily" will focus on Emma Swan's childhood friend. It was earlier revealed that it was because of Prince Charming and Snow White that Lily was taken away from her mother when she was still a baby. Now that Lily is back, she may want to get back at Charming and Snow for separating her from Maleficent.

 While Maleficent might be happy over the fact that she has been reunited with her daughter, the recent turn of events might make the reunion a little complicated.  In the previous episode, Emma had already given in to the darkness by killing Cruella De Vil in order to protect Henry. Now that Emma has given in to her dark heart, what will become of the Savior? Can Killian save Emma from the darkness that continues to consume her heart?

Viewers were already shocked when the series took a darker turn during the previous episode. Spoilers have already revealed that the storyline will get even darker, as told in the true fairytale fashion. Rumbelle fans did get a glimpse of the Belle and Rumpelstiltskin reunion, albeit it was not the one they were hoping for. Fans already know the connection between Henry and Rumple. Does Henry kill Rumple in the upcoming episodes? Knowing how Once Upon a Time works, nothing is set in stone and things are never what they seem.

Be sure to catch an all-new episode of Once Upon a Time Season 4 on ABC this Sunday.