In which Acnologia had a dragon father who was best friends with Natsu back in the day, Natsu likes to experiment with bringing people back from the dead and the guild is caught in the middle of it all.

Almost all of the dialogue was inspired by conversations with ef07, seriously, couldn't of made this without em'!

Spoilers for chapter 436.

If you would've told Team Natsu they would be fighting against one of the demons from Zerefs books, Lullaby, they probably wouldn't have accepted Erza's offer to go and make sure the dark guild Eisenwald didn't cause any trouble. At this point they just wished someone would get a giant dragon to defeat this guy for them.

"Yo! E.N.D!"

Huh. Who would've thought…

"Nooo! E.N.D-sama! Don't sick Bob on me! Please!"

Woah, they hadn't expected Lullaby to be able to talk. But, then again, they also didn't expect a giant dragon to come down and defeat lullaby for them.

This day was full of surprises.

The next time they saw this "Bob" character had been on Garuna Island, when they were fighting Deliora, a demon Ur had sealed, only to be un-sealed by one of her apprentices, Leon.

They got ready to fight, activating their magic, they were gonna' destroy this demo-

"Sup' E.N.D!"

This "Bob" crashed into Deliora, crushing it into pieces.

Now, they did research on this "E.N.D" that Bob always referred to, and learned that he was another demon of Zeref's book, but he was obviously referring to one of them, so it couldn't possibly have been the one Bob was talking about.

Right?

They hadn't seen Bob for quite a while after that. They hadn't given it much thought actually, they wondered about it before, but they reasoned that he probably just realized that this "E.N.D" wasn't in Fairy Tail.

Well, they thought that anyway.

They were at Tenrou for the S-class exams, only, they weren't the only ones planning to be there that day it seemed.

They were attacking Acnologia, and nothing seemed to work! They weren't going to give up though!

And- Wait? What was that? Behind him, it almost looked like-

Another dragon?

Was that Bob?

"Hey son!"

Yup, that was Bob alright, they'd recognize that voice anywhere. Wait, son? Well… there was an uncanny resemblance between the two…

"DAD I'M TRYING TO DESTROY THESE PEOPLE!"

Where did the second voice come from? Was it? No, it couldn't be from Acnologia, could it?

"I wouldn't do that if I were you. See that one with pink hair?" Bob said, pointing at a general direction towards the ground, still looking at his 'son'.

Whoa, hold up a sec. Pink hair? Does he mean-

"IT AIN'T PINK, IT'S SALMON!"

Yep. He meant Natsu.

"Yeah, him, he's E.N.D, remember? The demon I always talk about?" Bob continued, "I'll be very disappointed if you attack him, son."

"GODDAMMIT!"

"Thanks Bob!" Natsu yelled, somehow getting them to hear him even though he was about 100 feet below them.

They had no idea what just happened, or why, but at the moment they were just relived that they had not been killed by the dragon of apocalypse.

As they watched both Bob and Acnologia fly away, they all simultaneously thought,

'I'll ask him later.'