As Natsu got distracted by those annoying little creatures that sill got in the way in his path. He was getting ready to conflict at them.
''There's so many of them!''
Happy yelled.
''Blast it! If we don't attack these creatures in time, we'll never save Lucy!''
''Don't give up on me, Natshu!''
Happy started encouraging him not to relinquish this fight.
''Don't worry Happy. I'm not going to resign this whole battle because this battle has just begun!''
Natsu began to launch his attack move which happens to be; Fire Dragon Crushing Fang. With his hand ignited with a large flame, Natsu gouges his hand into his enemy and quickly swipes his enemies away from his sight. While on Gray Fullbuster's side, it seems like Gray wants to put something inside Lucy's mouth. Lucy was sleeping and she was not able to move since she was wounded by Gray. Gray takes out the same potion that he obtained recently by a dark wizard named Abbadon. He opens the lid of the potion and poured all the dark potion inside Lucy's mouth.
''This would make Lucy love me for sure, she will.''
Gray started to make an evil cackle. When Lucy opened her eyes, she commenced from being ''good'' to being ''evil.'' It was too late for Natsu to save her now. By now, she had a dark side within her. In the inside of her evil side was her true self;
''What is going on? Who was the one pouring down the potion inside my mouth? I don't want any of this! Never!''
Lucy began to cry but it was too late for her to change back to her original self again. Lucy was now under control by the dark wizard, Abbadon. The very same wizard that controlled Gray. Abbadon went inside the cavern to have a talk with Gray Fullbuster.
''The plan worked, didn't it?''
Abbadon smiled with wickedness.
''Oh yes it did. It really worked. Thanks for the cooperation, Master Abbadon.''
Gray replied with a dark face and smiled at him.
''You're welcome, Gray Fullbuster.''
Abbadon made an evil smile back at Gray Fullbuster and started patting his shoulders.
''Now, since Lucy is now under control by me, why don't you start off confessing her saying you love her.''
''That will be a wonderful idea to start off with, Abbadon!''
Gray goes towards Lucy and started to confess her.
''Hello Lucy. I want you to know that I love you.''
''Yes, but I don't know how to put it that way, Gray.''
In Lucy's thoughts:
((No! I don't want this to happen! I want Natsu to save me right now!))
''Why? Because I really want to be with you, Lucy.''
Gray hugs Lucy from her behind in a split second. Then after Gray did that, Lucy felt passionate about what Gray did to her. This made her fall in love with him. I am not sure why this is taking place. This is assumed to be happening when Gray was under control by Abbadon. Gray continues to take advantage of her by taking her clothes off but Lucy did not want him to something so perverted. That was really disgusting. The under-controlled Lucy discarded his request since it was too nude. If this crisis won't stop right now, this is the end for Lucy Heartfilia.
Back on Natsu's side,
''Natshu, it's time we go now.. I have a bad feeling about Lucy..''
Happy started to get worried about her. Natsu stares at Happy and was shocked.
''Just what really happened Happy? Did you sense anything strange?''
''I have the feeling that.. Lucy... is under-control by this dark wizard.. It's too late for you to save her now..''
Natsu was stunned by the look at Happy's face and what he was saying right now.
''You must defeat this dark wizard and defeat Gray Fullbuster in order for Gray and Lucy to turn back to normal again..''
Happy started snivelling out his tears just like a kid releasing his own tears.
''Now it's not the time for you to start crying, Happy. Now's the time to defeat this dark wizard and pay Gray Fullbuster on what he did to Lucy!''
''You got some serious guts, Natsu!''
Happy smirked at him. Natsu felt in high spirits and the both of them ran inside this cavern. They did not have to use their own flash light because the cavern has its own flash light inside. When they went inside, Happy showed him the way to the dark wizard. Few minutes later, when they reached there. They saw a dark wizard with an evil smile and he was willing to have a battle with Natsu Dragneel.
''I was waiting for you to have a battle with me, Natsu Dragneel.''
Abbadon starts making an evil smile.
''What did you do to hurt my friends?!''
''I tricked Gray Fullbuster by using the dark potion which resembles the symbol of darkness. A potion of Love does not exist in dark magic. This potion will only turn them from being ''good'' to being ''evil.''
''Yeah and just what happened to Lucy before she became evil?''
Natsu was bursting with anger and curiosity about this situation happening right now.
''Now Now! I will tell you what happened. While Lucy was feeling unconscious, Gray took out a potion from his pocket and pour some of the dark potion inside Lucy's mouth making her turn evil just like Gray does.
Gray did some naughty things to her like taking her clothes off but she rejected that kind of request since it was too nude for her to do something like that. This is what exactly happened between Gray Fullbuster and Lucy Heartfilia. The plan sure worked!''
Abbadon started evil cackling after his own talk. Natsu did not like the sound of that. He was not expecting something very evil.
''I can't believe you're actually doing this. You know what? You shouldn't be taking advantage of her! She is my friend ever since we met in Hargeon Town. She was the one who wanted to join Fairy Tail in the first place! Since she ran away from her past, she decided she wanted to join Fairy Tail so that she would be able to have another family there!''
''What you're saying doesn't make sense! You should be thankful that I put those two with the dark potion. So who are you going to defeat first? Me or Gray?''
''I would like to defeat you first before Gray! You were the one who started this disaster!''
''If that's the case, then come on. Come and battle with whatever you like!''
''I'm going to defeat you and get you out of my sight once I'm done with you, Abbadon.''
''Say whatever you want, Salamander! The rumours have been spreading around and there are some people who talk a lot about you.''
''I know but that is not the time for you to start talking to me! Let's fight!''
Natsu began striking his attack but Abbadon dodged. Abbadon started releasing his own attack.
''Sinister of darkness!''
''This means I'm a dark wizard who does not have the same level as Master Hades but my level seems to be advanced than I expected it to be.''
''I don't care whether you're advanced or not. As long as I have the strength to fight, I will defeat you Abbadon!''