Horror overtook the entire atmosphere in Storybrooke. The Black Fairy is gone but she's been replaced with someone far more dangerous. Emma stepped away from Regina for every step she takes towards her she grew weaker. The darkness in her is too much even for the Savior. Hook helped her get up right away. "Regina, listen to me. You can fight this. You are strong enough to fight this", Snow said trying to bring her back but she only laughed at her. "Look at you. Always stepping up as a hero. What makes you think I want to fight this? You know what. Instead of you wasting your energy with your hope speech, why don't you use it on thanking me for solving all your problems", Regina said. Her voice has no trace of any kindness at all. "That you do and the job is done, Regina", Gold suddenly said. She looked at him like she wanted to say something else but she couldn't. "You're right. The job is done. I'm going to find something else to keep myself busy then", she said and then disappeared.
They all can finally breathe. The Charmings went to Emma. "Are you okay?" David asked and she nodded. "Yeah for now. What was that?" she answered then asked back. "You can feel it too, can't you? It's the darkness in Regina. It's too much that it's radiating off her", Zelena answered. Emma nodded. "Yeah…it's like she's a walking darkness already. I can't go near her. It felt like I was running out of oxygen", Emma said. That worried everyone. "That's because her darkness is too much for your light. Remember, she borrowed some of your magic so she can ignite the light in her. You feel suffocated whenever she's around because your light became weak after that", Gold explained. "Then how are we going to solve this?" Robin muttered.
They all went to the apartment to figure things out. Emma is feeling much better now compared to earlier. Henry is completely depressed by what just happened to his mother while Gold is keeping to himself. "First thing is first. What was that language she spoke earlier?" Snow asked. No one has explained things to them since it all started. "It is called verba ex malo or the words of evil. It is a forbidden language and is considered as dead. You cannot find any more of it in the books because it was banned to be printed. I only saw one recordings of it back in the Enchanted Forest", Belle answered. Emma listened carefully. "I thought that language is a myth like the Tree of Life. It was said that whoever speaks those words immediately hands their souls and hearts to darkness", Zelena added. "What did Regina say earlier? Do you guys know?" Robin asked. Belle and Zelena shook their heads. "I give what's left of my soul and my heart. Let the darkness and emptiness fill the space once occupied by light. Let this once pure and innocent heart become black as night. That's what she said earlier", Gold answered.
They all looked at him and it didn't surprise them to know that the Dark One knew that language. "Only darkness can snuff out darkness…she turned herself completely dark so she can defeat the Black Fairy", Emma muttered as she buried her head on her hands. "Cordelia, the first witch, intended to do the same back then but she's not as strong as Regina. She's never been dark before. Her heart was pure white. So instead, she used her powers to remove Fiona's spell on humans and used her remaining strength on passing down the Condemning Ritual to her descendant because she knew that my mother will return one day", Gold explained. Silence filled the room until Zelena broke it. "So Regina was able to fully embrace that spell thru giving up all her light, is that it?" she asked and Gold nodded. "Well then, all we need to do is give her back her light then problem solve, right?" she suggested. Emma and the others thought that was a good idea. "It's not as easy as it sounded. Her light has been distributed into the world. How are we going to get it back?" Gold asked. Emma got up. "We are going to work for it no matter how hard it's going to be. We're bringing her back", she said.
Regina appeared right in front of the Tree of Life. She looks at it the way she does before but something is now different. Her eyes are different, obviously the color is but that's not it. It's the emotion. It seems empty. "Why did you do it?" Tinkerbell asked her. She turned to see her. "You have worked hard to change and be good but you threw it all away", she said. Regina smirked a little. "You're making it sound like I have a choice", she answered in a cold voice. "Everyone's got a choice, Regina. I saw you back there. I saw the way you looked at the Dark One and to your son. I don't think you're the evil as you cracked up to be", Tink said. That interests Regina. "You're right. I'm not evil, fairy", she said with a smile and that made Tinkerbell smile too. "I am the great evil", she said.
"No", Tinkerbell muttered.
"Oh yes…quite a shock, isn't it? We all went am I or am I not? Then one said not and then yes and then not when it will all comes to I am. Fear not, old friend. I am not here to kill you or anyone else", Regina said.
"Really? Then what's your next move?" she asked her. Regina smiled.
"What a queen does…rule", she answered and then turned to the tree. She opened her palm and used her magic on it.
"What are you doing?" Tinkerbell asked in panic.
"You think I killed the Black Fairy because I want to prevent the darkness from taking over the world? I am not a martyr, dear. I killed her because she's the main reason why my fate got all screwed up and she's too cocky that it's annoying me. I am simply doing what I'm destined to do", she answered.
A blinding light came out of the tree and once it's over Tinkerbell opened her eyes and saw that the tree is no longer glowing and glittering in white light. The tree turned dark and dim and there's something about its presence that is haunting even the fairy couldn't bear to look at it for too long. "What did you do it?" she asked Regina in shock. Regina however is impressed by her work. She looked at it with a big smile on her face. "This tree is the center of all the magic in the world, not only this world but all the realms. It's the center of life. Why do you think infants are born pure and innocent?" she answered then asked Tink back. They looked in each other's eyes for a second before Tinkerbell realized what she has really done. She slowly shook her head. "No…Regina…you didn't. You altered everyone's fate", she muttered. "Not everyone…only those who got the purest of hearts", she corrected as she winked at her.