After following the black goop trail for quite a while, the group then entered a large area that leads to the entrance to the Door Vault. They have also notice that the trail has stopped.

Erza: The trail stops here...

Sulley: Well since we're here, everybody look for Boo's door.

Before anyone could do anything, Randall appeared with the cage from before, but this time it has expanded.

Sulley: (mad) Randall...

Natsu: Isn't that the junky thing from before?

Kat: For once could this guy give us a break?!

Mike: (mocking smile) Didn't you learn your lesson with that pile-of-junk fiasco?

Randall: (smirks) Oh, I learned a lot.

Randall then steps aside and gestures the junk pile again.

Lucy: Is it me or did that thing just got bigger?

Still not believing his crap, Mike smiles and walks over. Boo then notices the Unversed symbol was showing, and hides behind Sulley. He sees this, and knew it's dangerous this time.

Sulley: Wait Mike, something's different! (gets Boo to safety while the others join Mike)

Wendy: He's right. I can smell something strange on that thing.

Mike: Oh, please. It's just more junk.

While standing on a higher stand, Randall laughed Mike. Mike was about to make a comment about him when suddenly, black goop came from the cage and spread all over the floor. 

Everybody turned and saw the goop turn into a large monster, shocking Drake, Happy, Carla, Lucy, Wendy, Juvia, and Mike with fear. 

Seeing this, a terrified Mike back away from the monster while others ran up towards it.

Sora: An Unversed!

Gray: And a very gross one!

Lady: Well, at least if we beat this guy he needs to pay for property damage. 

Drake: Hey Randall! Your 'ACE' here is kinda combining itself with the company's machine's that YOU want! Hope you have insurance after this!

Everyone chuckled while Randall grumbles in anger. 

Sulley: (lifts Mike up) Mike, time to reach down and let the scary out.

Understanding what Sulley said, Mike slapped his face a couple of times and gave a scary expression.

Mike: Oh, I'm ready, Sulley. I'm ready!

Randall: Finally... this is exactly what I need to take over the company. But first... I'm getting rid of you. ATTACK!!!

Listen to its master, the Unversed known as the Lump of Horror lifted its arms up and slammed it onto the ground. Everyone dodged when the arms hit.

Sora: Gray, try freezing it!

Gray nodded and freezed the floor with his hands. It started to spread on the monster's body until the monster produced flames from his hands and threw it at the ice, making it melt.

Gray: It can use fire?!

Natsu then charged at the monster.

Natsu: Fire Dragon Roar!

Natsu blasted a huge amount of fire at the monster, but it countered Natsu's attack by firing ice at the fire.

Ur: It can use ice too?!

One of the monster's hands sprung into the air and grabbed Natsu.

Natsu: Crap!

He then yelled as the monster dragged Natsu towards it and stuffed him in his mouth.

Sulley: Oh no!

Happy: Natsu!

Seeing Natsu in trouble, Wendy ran towards the monster in a hurry.

Carla: Wendy!

Multiple hands then came out of the monster and surrounded the area, most of them were in front of the monster.

Wendy: Sky Dragon Roar!

A huge blast of wind came out of Wendy's mouth. The wind blew all of the black goop away from the group, it was also strong enough to blow some black goop off of the monster, releasing Natsu and showing the metal part on its head.

Natsu: Thanks, Wendy.

Wendy: Sora, strike the metal piece! The goop came from it, so it must be destroyed!

The Lump of Horror summon more hands and blasted ice and fire, but Natsu and Gray counter the attacks with their magic. 

The monster attempted to grab Sora but Wendy blew the hands away with a swipe of her hands. Sora jumped into the air and stabbed the metal part with his Keyblade, making it grown in pain.

The Lump of Horror then transforms into a bird-like form summon several tar hands all around the walls of the battle arena.

The Unversed its wings to launch gusts of wind at the group, trying to blow them away. 

Lady: Damn it, this is getting annoying!

Drake's mind: What am I going to do? I can't fight like this... but I can't sit by and do nothing!

With courage and determination in his eyes, Drake unsheathed Rebellion and starts charging at the Lump of Horror, despite being heavy at his current appearance.

Lucy: Drake!

Sora: Wait, don't!

With a yell out of his lungs, Drake throws Rebellion like a javelin as it stabbed the Lump of Horror on its head.  

The Unversed then dissolved into the black goop, making a large mess on the floor along with metal parts and scream tanks. 

Donald: Wow...

Goofy: That was epic... 

Drake: I did... (smile) I did it! 

Sulley: Nice throw there kid. 

Mike: Yeah, maybe size doesn't matter to you after all. 

Kat: (pats Drake's head) He's still the reckless member of the guild we know.

A frustrated Randall quickly came to the monster and examine it.

Randall: (angered) WHYYY?!?! (starts kicking it) 

Mike then notice a brown wooden door with purple cracks coming out of it and there was a red light on top that is currently on. 

He then grabbed Sulley's attention and started making gestures about his plan. At first he was confused, but then Sulley realizes what he meant and began to run towards Randall.

Donald: Where are you going- (Goofy covered his mouth)

When Randall turned and saw Sulley, he gasped while Sulley gave a huge monster roar at him. Back at the Door Vault, the group was about to send Randall back were he came from.

Mike: (opens the door) All right, and in ya go.

Natsu: And don't you ever come back!

Boo: Rawr!

Ur: See? Even Boo is telling to go in!

Sulley: There's no place for you here anymore, Randall. Now we're in the business of making children laugh.

Boo: (laughs) 

Randall: You think it's funny?!

Gray: Totally.

Mike: (puts his hand on Randall's back) Hilarious! The more that you whine, the funnier it gets.

Drake: Yep, he's right! Now in you go, and try your best to avoid being a wallet, although it would suit you better at this rate.

Randall growls in anger, but then sighs in defeat and walks back to the door.

Sulley: Enjoy your extended vacation.

Natsu: You'll need it.

Randall: You clowns are gonna be sorry when I find my way back and finally take over this place! (enters the door)

???: Mama, that gator's in the house again!

???: Are you kidding?! Oh, this time, he's in for it!

The woman then started to hit something at Randall, causing him to yell in pain while the group laughed at him from outside the door.

Natsu: Hey, hit him with a bat!

Happy: No, a hammer!

???: Thanks, whoever you are!

Randall then screamed in pain while Mike shuts the door with satisfaction. 

Mike: (chuckles) So long! Smell ya later.

Sulley: And now we just need to do one last thing.

He's about to punch the door, when Sora gets an idea.

Sora: Hang on! I have a way to lock him out.

They move away and Sora gets the Keyblade out. He points it at the door, and a keyhole appears. A beam of light fires at the keyhole, and a locking sound is heard before the hole fades, and the door vanished.

Donald: And that takes care of that.

Goofy: Uh-huh.

Wendy: That was some ride, huh?

Sulley: Yeah. But, let's end this.

Everyone, except Natsu, Wendy, Gajeel, and their Exceed partners, got onto a door.

Sulley: Okay, Boo. Time to go home. You must be tuckered out, but we'll play together real soon.

Suddenly, there was a large noise and the doors that everyone was on started to move, surprising everyone.

Wendy: Who is moving the doors?

Mike: I don't know.

The doors then move towards one direction: The Laugh Floor.

Mike: What now?!

When they entered the Laugh Floor, the doors were brought down and everybody got off.

Erza: Why are we back here?

Suddenly, someone wearing a black coat appeared and walked towards the group.

Lucy: An Organization member!

Sora: Who are you? 

Natsu: (sniffed) I can smell Xehanort... But I can smell Sora on him. (shock) Did you and Xehanort made love?!

Sora: That's a stupid ass question!

The Organization removed his hood to revealing to be Vanitas wearing his mask.

Vanitas: Gotta say, that strange facade had me fooled at first, brother.

Everyone in Fairy Tail: Brother?!

Sora: Wait a sec... Oh yeah! (remembers the dream worlds) You were at the cathedral! 

Wendy: Kardia Cathedral?

Sora: No, a different one. (looks at Vanitas) And hey! Who are you to call anyone strange?

Goofy: (to Donald) Say, do we know this guy?

Donald: Uhhh...

Vanitas: We haven't ever met in the flesh. I am Vanitas.

Donald and Goofy gasped.

Sora: This is the part where you spout some mumbo jumbo and disappear, right?

Juvia: Cause you guys do that a lot

Vanitas: (walks over to a desk) This whole world was powered by scream. They converted the screams of human children into energy. (picks up a container and walks back) And this very company was what made it all happen. It's as rich a source of negative emotion as we'll ever find.

Modeus: And with your little henchmen, it's your own farm for power.

Mike: (walks over) For the last time, we already stopped doing that!

Vanitas: Did you? Then how do you explain all these containers of surplus scream? 

Natsu: So you're the one who did all of this!

Vanitas: This facility was everything I could hope for. And I was lucky enough to find a pawn whose heart was darkened by thoughts of revenge.

Mike: You used Randall.

Sulley: All Randall ever cared about was winning. And this guy took advantage of that weakness.

Kat: That makes you even more of a coward than he was, you Unversed idiot!

Vanitas: I do not care what you think girl. My heart is made of just one thing, and the Unversed collected enough screams and sadness from those children to reconstruct it.

Mike: (tires to walk over but Sulley grabs him) Yeah, and the whole time they were trashing our company in the process!

Vanitas: But, even with all this negative emotion, my heart is still incomplete. I need something else.

Vanitas dropped the tank onto the ground, causing it leak scream energy out of it and sending it flying. Everyone dodged before they could get hit. 

Everyone then watched as the tank flew into the air until it landed in front of Sora's feet. He then turns around to see Vanitas pointing his Keyblade, Void Gear, at him.

Vanitas: The half of me that sleeps on...inside of your heart.

Sora and ???: Vanitas!

Sora look in shock while he put a hand over his heart.

Drake: Huh? 

Lucy: Did Sora's voice sound a little different?

Laxus: It did.

Vanitas: Ventus... (walks to Sora) What a strange place to slither off to... (reaches out to Sora's heart) You insignificant speck. 

Sora: (pushes his hand away and steps back) What are you talking about?

Meanwhile, Mike, Sulley, and Boo were sneaking behind desk to get closer to Vanitas.

Vanitas: Oh, you wouldn't remember. When you were little... you formed a special bond, with a boy named Ventus who joined with your heart.

Juvia: Did he just said Ventus?

Panther Lily: What does he mean 'joined with your hearts'?

Trish: (realized) Wait... Don't tell me...

Modeus: Is he saying that Ventus, one of the three missing Keyblade wielders, is inside Sora's heart the whole time?

Sora: How is that possible?

Lady: You took the words right out of my mouth.

Vanitas: (grows a dark aura) Now, you will return Ventus to me.

Carla: You stay away from him!

Darkness spread around Vanitas.

Erza: Everyone, get ready! We got a fight on our hands!

Suddenly, Sora clenched his fists against his heart, as he is feeling incredible pain. He yelled and kneeled onto the floor.

Fairy Tail wizards: Sora!

Sora looked up and saw Donald and Goofy in front of him, protecting him from Vanitas' dark energy while Lucy and Juvia came over to him.

Sora: Donald... Goofy...

Goofy: The King told us about this. Ventus wasn't able to defeat Vanitas. They struck each other down, and then the King said that Ventus's heart never returned to him!

Lucy and Juvia: No way...

Donald: You're not gonna do that to Sora! No way!

Vanitas: Stay out of this.

Vanitas swiped his hand into the air and summon a strong black wind that knocked everyone, except Sora, away.

Everyone: Sora!

Wendy: Stop this!

Wendy grabs onto Vanitas and tried to pull him away. Vanitas responded by hitting her, making her fall to the ground.

Everyone: Wendy!

Vanitas: I said stay out of this, kid.

Carla: How could strike a defenseless girl?!

Vanitas: I have business to take care of.

Natsu: Damn you!

Suddenly, Vanitas casted Gravity as everyone then felt intense pressure and pain.

Kat: My body...

Ur: I can't...move.

Sora slowly got onto his feet and pointed his Keyblade at Vanitas. But Vanitas easily hit it out of his hands and pointed his Keyblade at Sora's neck.

Vanitas: (sees Ventus briefly) Join your heart...with min!

Vanitas summon more dark energy and was prepared to attack Sora. But, a giant figure appeared behind Vanitas, it was Sulley. Vanitas gasped and turned.

Sulley: Made you look.

Sulley gave him a monster roar to jump scare him as Boo covered her eyes while Mike covered her ears. Vanitas dropped his Keyblade and everyone was able to stand. They then saw Sulley holding Vanitas with his two hands while Vanitas was struggling.

Vanitas: (struggles) Let me go!

Happy: That's it! Get him!

A few doors then appeared on the floor next to Mike.

Mike: Over here, Sulley!

Sulley immediately ran over to the door and threw Vanitas into the door.

Sulley: Close it! Quick!

Mike immediately close the door and Sulley pull the door off of the floor. Mike then ran over and open the next door, which Sulley threw the previous into that door. 

They did it a few times until the last door was shredded into a machine. Both of them high five each other and high five Boo.

Happy: I wonder where he went.

Gray: Who cares.

Gajeel: But won't people wonder where those doors came from?

Erza: Let's not worry about that now.

Sora: That was awesome!

Drake: And funny at the same time.

Donald: Thank you!

Goofy: We owe ya.

Sulley: No, we should be thanking you. We never woulda managed to get Boo this far if you hadn't come along to help.

Mike: And finally, we found her door.

Carla: Wendy, are you okay?

Wendy: I'm fine.

Sora: (crouches down to Boo) Boo, I know how excited you were to come play with Mike and Sulley. Sorry we dragged you into this.

Wendy: I don't think she minds it, Sora.

Donald: watch it! You're gonna scare her with those faces!

Sora: (a little mad) Hey, you are way scarier.

Goofy: Gawrsh, I think you're both scary.

Happy: (points at Natsu, Erza, Gajeel, and Laxus) I think those guys are scary.

Everyone couldn't help but laugh and smile at this.

Sulley: Okay, Boo. Time to go.

Boo: (a little sad) Kitty...

Mike: We'll catch up soon, kid.

Boo: (looks at Donald) Mike Wazowski.

Mike: No, that's Donald, Boo.

Boo: (hugs Mike) Mike Wazowski.

He was surprised, but he smiled and hugged her too.

Mike: Better. I'll see ya, kid.

Boo: Dragon! (hugs Wendy) 

Wendy: (hugs back) Thank you, Boo.

Boo then headed towards her door with Sulley.

Everyone: Boo!

She turn and saw that some of them gave a funny face.

Everyone: So looong!

She laughed and then waved goodbye before entering her room. Everyone then entered the lobby.

Drake: Sorry for all the headaches was caused for you two.

Sulley: Don't mention it. And actually, it was kinda nice havin' a little adventure for old times' sake.

Mike: (nodded) Yeah, the flying and the falling-and hey, let's not do that paint thing again-but nothin' like running for our lives to get the heart pumping!

Natsu: Hell yeah!

Donald: I had a great time.

Sora: Donald! All you did was complain!

Donald: I did not.

Gray and Ur: Sure you did.

Goofy: (to Mike and Sulley) Any chance that we can drop by again?

Mike: The door's always open.

Sulley: And maybe Boo can join us!

Wendy: That sounds like fun!

Natsu: I wanna fight you the next time we meet!

Sulley: Alright.

Everyone then shook hands with Mike and Sulley.

Everyone: Good-byeee!

They headed towards the exit.

Mike: For the record, I still get the most laughs!

Sulley: Happy exterminating!

Everyone: Thank you!

Chapter 64 ended.