The 4 run to Marceline's house, which Fionna recognizes as Marshall Lee's house.

"This is our friend Marceline's house." said Finn.

"Hey, this looks familiar! The person who lives here in me and Cake's dimension is named Marshall Lee." added Fionna.

When they got a bit closer to the cave, they noticed that Marceline was floating one foot above the ground, with a vampire boy who was about her age pinned to the cave wall, being kissed aggressively by Marceline. The four stared in disgust.

"Marshall?" Fionna shouted. Both vampires, accurately demonstrating "Tier 3"(or 4, idk) looked over at Fionna.

Marshall Lee blushed. "Uh... hey, Fi..." Marshall Lee said with an embarrased look on his face.

"Ok Fionna, Marshall Lee got a girl, but it's okay, you like Finn anyway. Let it go." Fionna thought to herself.

"Uh, sorry..to...um..."interupt" you guys, but we need your help. Marceline, Marshall Lee is a copy of you from a different dimension, just a guy instead of a girl. Fionna is my female copy, Cake is Jake's female copy, and so on. The portal Ice King created to a different dimension will engulf the entire earth if we don't cut off it's power supply!" Finn explained.

"Will both me and Marshall be able to help?" asked Marceline. Finn nodded and told them they would return to tell them when it was time to fight.

The 4 then went to Billy. They realized 9 people would totally be enough to destroy the power source. They wanted Billy to help because, well, he was the greatest hero in Ooo. When they got to Billy's cave house, Billy was happy to see Finn and Jake.

"Oh, hey Finn! Hey Jake! It's been a while. Have you killed the Lich who is totally bad and evil and gotten the awesome Enchiridion back?" Billy asked, almost a little cheesily.

"There's no time for talk, the Ice King has created a portal to a different dimension that may engulf all of Ooo and the rest of the earth if we don't cut off the power source! By the way, Fionna is me from a different dimension, just female. Jake has Cake, Princess Bubblegum has Prince Gumball, and so on. Can you help?" asked Finn. Billy just sat there with a large grin. All of a sudden, he stood up and snatched Fionna straight off her feet into his hand, and something bursted out of the Billy costume.

Finn should have remembered what had happened before, with the scissors and the dimensional portal because...

It was The Lich.

A/N: Yeah, I know, bad ending to this chapter, I couldn't really think of what else to say :/. Also, you probably have noticed (if you actually follow this story)I am updating very quickly. I have written most of the story already on my computer and had just waited to post it because I would be all like "NO ONE SHOULD KNOW ABOUT THISSSSSSSSS" so when I decided to actually put it up, I just uploaded one chapter at a time. Well, next chapter will be up soon. Baiiii :D