Disclaimer: I don't own Fairy Tail

"Acnologia!" Laxus stepped back.

"This is the dragon Natsu-san and the others couldn't defeat?" Sting asked.

"You puny humans. You think I came to kill you?" Acnologia boomed.

They were silent and frozen. Acnologia's gaze shifted to Natsu. "You. You're the one with the fire dragon slaying magic on the island I destroyed. What are you doing still alive? And the rest of you?" Acnologia's stared at them.

"You can actually talk," Natsu said very surprised.

"Of course I can speak! Now answer my question!" Acnologia roared.

"Acnologia, they were saved by Mavis. Leave them," Their gazes looked to see Zeref walking towards them.

"Zeref?" Natsu stepped back, away from the black mage.

"There's no need to fear me. I am only here to help take back the magic world that ended long ago," Zeref told them.

"Why should believe that?" Natsu challenged.

"We've been in hiding for long enough. We were just waiting for others to make a move," Zeref explained.

Wendy stood back up on her feet and confidently made her way to Acnologia. "I have a question. If you could speak, why didn't you at Tenroujima?" Wendy asked.

Acnologia looked at the girl. "I remember you. You're the girl who asked me to speak. You used sky dragon slaying magic. I'll give you an answer: it's because all humans are insects!" Acnologia simply stated with a roar.

Wendy didn't flinch, but she stood confidently in front of the dragon. Acnologia stepped back in surprise of her reaction to the roar. "I don't trust you two a bit," Natsu bared his teeth at the two. Acnologia opened his jaw to say something back, but Zeref held a hand up to him to stop the comment and said," I understand that you don't believe us, but it will be the best to bring back magic. What would be the point of taking over a magicless world with no one decent to fight. I'm sure if you hadn't met any of your friends, you would become bored of not being able to use magic."

Lucy stepped up next to Natsu, hoping to help Zeref and Acnologia get on their side. "Natsu, if you don't trust them, I understand, but if you don't trust them now, they'll become an enemy also. Remember what happened at Tenrou?" Lucy whispered to Natsu.

"But Lucy, they're enemies. We can't just allow them to join our side," Natsu quietly argued back.

"Wendy's right by Acnologia right now. In a matter of seconds in attacking Zeref and Acnologia, Acnologia will surely kill Wendy first," Lucy whispered back.

Natsu was silent for moments and then then he took a deep breath. "Fine, I'll believe you just this once. Though, as soon as this battle's over, you two are to immediatly leave the city," Natsu told them.

"You can count on it," Zeref nodded.

Zeref turned and walked back towards Acnologia and added, "I leave the castle to you. We'll take care of any others outside it. Be careful."

Natsu and the others watched as Zeref and Acnologia left them. "Natsu-san, we should start heading to the castle," Wendy came and stood by Natsu and lucy.

Natsu stayed silent, a small frown was on his face. Lucy waited for Natsu to say something for them to leave. "We better get going. We can't have Zeref and Acnologia saving us over and over," Natsu finally said, turning to look at the castle.

"Wendy, I want to to cast Vernier on everyone. Laxus, Jellal, you get a head start and defeat any enemies standing guard outside the castle. Erza, if you want, you can go also," Natsu walked towards them all the members of the guild, giving orders; Lucy and Wendy followed him closely from behind.

"Salamander, did you grow a brain?" Gajeel joked.

"I don't know what you're talking about, I always had one," Natsu countered.

Laxus, Jellal, and Erza left, using their high speed to reach the castle first while Wendy had casted Vernier on them all and they all made their way to the castle.

"Natsu-san, was that the dragon you couldn't defeat?" Sting asked, catching up and running next to Natsu.

"Yeah, he can't be taken down by dragon slayers. Me, and the other dragon slayers found that out the hard way," Natsu explained.

"I know, I just thought it was a normal dragon, not something like him," Sting explained.

"Are you trying to say sorry for saying that I couldn't defeat a dragon?" Natsu questioned.

"I guess, but what is Acnologia?" Sting asked.

"Acnologia is no normal dragon. There's two differnt theories: he used a bunch of dragon slaying magic and he was turned into a dragon or Zeref turned him into a dragon," Lucy explained.

The thought of becoming a dragon just because of so much use of dragon slaying magic dawned on the dragon slayers. "Please don't say that Lucy-san. I'd rather not think my dragon slaying magic can turn me into a dragon," Wendy whined.

"Maybe I shouldn't use so much of my magic," Erik thought aloud, knowing that he could read minds.

"Maybe I shouldn't have beaten up so many people with my magic," Sting gave his thoughts.

"I regret eating that iron last night," Gajeel thought also.

"You guys, don't think so negatively," Levy pleaded.