Here's the next chapter, sorry for the long wait.
I don't now own Percy Jackson or adventure time.
Percy looked at Finn in surprise at what he had just asked. True, he had trained some newcomers at Camp Half-Blood, but that was because he was assigned to help. Now someone was actually asking him for help in training, he never thought he'd see the day.
"OH GLOB!" said Finn embarrassed, "Forget I said, anything! You don't have to do it! Bye forever!"
Percy broke out of his shock and said, "Finn, it's okay calm down. I guess I could give you a few pointers, but from what I heard about you, you're already a good swordsman."
Finn got flustered and said, "Really?"
"Yeah," said Percy with a smile, "You should here what these candy people say about you."
"Told ya, dude," said Jake.
"Still could you still um..." Finn said nervously.
"Of course," said Percy, "I'll come by your treehouse tomorrow."
"Thanks," said Finn.
"Oh, and dude if we're not there when you arrive, it's because we are sledding in the snow kingdom," said Jake.
"Thanks for letting me know," said Percy.
"Well bye," said Finn and took off as fast as he could.
Jake just shook his head, picked up BMO and took after Finn, "Bye, Percy," shouted BMO.
Percy waved goodbye and then walked back to Marceline and Estelle's house.
(Percy's dream)
When Percy woke up, he was in a destroyed city and saw some fires burning in the distance then he heard the sound of crying, he turned and saw a little girl with short black hair, pale skin and pointy ears, she was also wearing a blue dress with a red shirt underneath it.
Percy also noticed another older girl hugging her, she had pepper hair, punk clothes and sea greens eyes. The girls were crying their eyes out as Percy watched on, but he knew who they were.
"Estelle? Marceline?" asked Percy.
He thought he heard Marceline say, 'Daddy' and just then someone approached the two girls. He had a backpack and wore an outfit similar to that of a professor. He had white hair it connected to a long white beard that covered the whole bottom of his face. He had glasses but one of the lenses was cracked and, on his hip, Percy saw a yellow crown with three red rubies on it.
"Who is that?" asked Percy to himself.
The man saw Marceline and Estelle, put his backpack down and ran over to them. He put a finger on Marceline's face to wipe the tears away and looked down sadly. The man then got up and walked over to a destroyed toy store and picked up a red teddy bear, with blue button eyes and long arms and legs. He came back and gave it to Marceline, who stopped crying and held it close with a smile.
Estelle hugged the man and said 'Thank you' as Percy just smiled at the site.
(Dream end)
Percy woke up and saw Marceline and Estelle were already up and in the kitchen. Mrs. O'leary and Schwabl were resting, Mrs. O'leary next to the couch and Schwabl was sleeping on Percy's chest. Percy gave a smile and lightly lifted Schwabl up and then placed him back on the couch.
Percy went over to the kitchen and saw Marceline and Estelle making pancakes. He sat down at the table as they brought food. Percy went right to eating, but Estelle and Marceline noticed Percy seemed distracted by something.
"Hey Percy," said Estelle, "Are you okay?"
"Did you have a sad Demigod dream?" asked Marceline.
"Yes, I did," said Percy being honest.
"Really, which one was-" said Estelle before Percy brought her and Marceline into a hug.
"Uh, Perc?" asked Marceline in confusion, "What are you doing?"
"I saw the one of you guys in the apocalyptic world as kids," said Percy causing Marceline and Estelle to go wide eyed.
"You mean you saw-" Estelle started asking before Percy said, "Where Marceline was crying for her Dad and that man came, yes."
"Man?" asked Estelle and Marceline at the same time.
"Yeah," said Percy, "The one with the white beard and professor outfit, I would have liked to thank him."
Estelle went awkwardly silent as Marceline slipped out of the grasp and awkwardly said, "Don't worry about it, Percy, Simon took good care of us."
"I'm glad to hear," said Percy giving a sad smile, "It's a shame I won't get to thank him for looking after you guys though."
Estelle and Marceline looked at each other with absolute nervous look, which Percy happened to see and asked, "What?"
"Nothing you need to know right now, Percy," said Estelle leaving Percy confused.
(Tree fort)
After finishing some breakfast and spending some time with Estelle and Marceline, Percy made his way to the treehouse to train Finn. He walked up and knocked on the door but there was no answer.
"Finn? Jake?" Percy asked as he knocked again, "BMO? Anyone home?"
The door opens and Percy sees no one standing in front of him but does hear, "BMO is home!"
Percy looks down and sees BMO again, he smiles and says, "Hi, so I'm guessing Finn and Jake aren't back from the ice kingdom yet, are they?"
"No," said BMO, "Want to come in a play some games?"
"Sure," said Percy and he heads inside.
(Hours later)
It had been a long time since Percy could play any form of electronic without a monster coming after him. He did take breaks and enjoyed some lunch BMO made. As the hours ticked by Finn and Jake still had not come back. It was soon afternoon and still no word from Finn and Jake.
"Where are they?" Percy asked.
"Maybe they ran into Ice King," BMO suggested.
"Who?" asked Percy.
"Ice King is the ruler of the Ice Kingdom," BMO stated, "He is a very crazy man who is also kidnapping princesses across Ooo, so they will marry him."
"What?!" asked Percy in shock.
"It's okay," said BMO, "Finn and Jake always beat him."
"Well, that's good to hear," said Percy, "Still I'll give them a few more hours and if they aren't back yet, I'm going to go a find them."
"Understandable." said BMO.
(Ice Kingdom)
It was almost sunset, and Finn and Jake still had not come back, so Percy left them a note with BMO and headed for the Ice Kingdom. It wasn't very hard to find, he just headed towards the snow, but he did regret one thing.
"Why didn't I bring a coat?" said Percy to himself as he shivered and trudged through the snow.
He could practically hear everyone calling him 'Seaweed Brain' after this stunt, but Percy continued on his way, trying to find Finn and Jake. He called out to them, but they didn't answer.
"Finn? Jake?" Percy shouted, but there was still no answer.
Percy was still cold, but he kept going, then he thought he heard something. It sounded like music. Percy headed towards the sound, but as quickly as it came it had stopped. Percy knew which direction the sound came from, so he continued in that direction.
Percy thought he heard the sound of giant footsteps but as he heard them get further and further away, he chose to ignore it. He eventually came to what Percy could only assume was the Ice King's place.
It was a hollow mountain capped by snow and ice, and its windows made it look like it had a face. Percy walked around the mountain but found no entrance. He groaned and thought about what to do.
"C'mon!" he groaned, "There has got to be a way up here!"
Percy then looked down at the snow beneath his feet and thought to himself, 'Well I can already bend the water in a persons bloodstream, so why can't I bend the water in the snow?'
Percy closed his eyes and concentrated, then he shot up into the air with a snow platform rising up with him. He stopped when he reached the window and stepped in. When he got inside, he saw underwear and pizza boxes scattered all over the floor. He also saw some drums and an open prison cell. What was in the cell was what shocked him though.
Lying on the ground was a blue-skinned, elderly man with pointy fingers and toes, sharp teeth, and a long, goblin-like nose. He also wore a dark blue tunic and had a lengthy white beard that covered most of his body. Percy could only assume this was the Ice King and he even recognized this guy as the one who crashed his welcome party a few days ago.
Just then the Ice King began to stir, he got up and groaned, "Crazy Finn and Jake."
Percy went wide eyed and ducked behind a chair so as not to be seen. The Ice King stumbled out of the cell and closed it. He walked over and sat down in his chair that Percy was hiding behind.
"Trespassing in my kingdom," The Ice King mumbled, "Making off with my brides. I will make those two will pay somehow! Gunter!"
Percy heard a 'Wenk' and looked at a door passaged and inside stumbled a penguin, who waddled over to Ice King and got up in his lap. Percy would have awed at the sight, but he felt something was off about that penguin, but he wasn't sure what.
"Gunter," The Ice King started, "Be a good boy and fetch my crown."
Gunter got off Ice King's lap and waddled over to another part of the room. Percy watched and to his surprise, he saw a very familiar crown lying on the ground where the penguin was waddling towards.
"Where did you get that crown?!" Percy shouted exposing himself and causing the Ice King to jump out of his seat, as well as Gunter to go 'Wenk!' in surprise.
"Who the heck are-" the Ice King started before realizing, "Wait a minute! You're that new hot guy whose party I crashed to find a wife."
"You mean when you tried to kidnap Princess Bubblegum?" asked Percy with a deadpan look.
"Hey, she wants me!" said Ice King sternly.
"Okay, I don't have time to argue with this," said Percy shaking his hand and pulling out riptide.
"No, not the sword again!" said Ice King.
"I'm going to ask again," said Percy, "Where did you get that crown?!"
"I've had it my whole life!" said Ice king nervously, "Why do you care?"
"Because that crown belonged to somehow who helped take care of my sister and her friend," said Percy, "Now, I'll ask again...where did you get it?!"
"I told you; I've always had this!" said Ice King, "I swear on my love for princess and a wizard!"
Percy walked closer the sword still pointed as Ice King, who cowered at Percy's anger and held Gunther close. Percy got really close and took a good look at Ice king and then said, "Simon?"
Ice king forgot his cowardness and looked at Percy in confusion and asked, "Whatmon?"
"That is your name, right?" asked Percy, "Simon?"
"No, my name is Ice King!" said Ice King, "I don't know this, Simon!"
"Did you find that crown lying next to someone?" asked Percy confused.
"No, I've had this crown all my life, like I said," Ice King spoke getting back and putting his hands on his hips, "That's what I keep trying to tell you?"
"So, you don't know my sister Estelle and her friend, Marceline?" asked Percy.
"Estelle and Marceline?" asked Ice king ecstatic, "I love their music! Of course, I know them. A bunch of people in Ooo do!"
"Do you...have any memory of yourself before the crown?" asked Percy concerned.
"Of course, I do!" said Ice King, "It's all in my memory cave, follow me."
Percy watched Ice King run off and thought to himself, 'Is this really the guy who helped Estelle and Marceline?'
"Yes, Percy Jackson it is," said a voice.
Percy turned around and saw an old woman who looked like a professor, but there was one thing about her that made Percy know who she was and that was her grey eyes, that looked with exhuastion and sorrow.
"Athena?" asked Percy.
"Yes, Percy Jackson it is I," said Athena as she straightened her glasses, "I really did not think I would be around to see you again. I really thank Rick for those books."
"Athena, I have to ask, what are you doing here?" asked Percy, "Marceline and Estelle told me you really only hang out at the library when you come here."
Athena looked like she was about to answer when they both heard, "Hey, are you coming or what?"
They looked and see Ice King come out of the passageway and said, "Cause I thought you wanted-"
Ice King halted when he noticed Athena and said, "Oh mom! Did you have to come over when I have guests? Promise you won't embarrass me like you do in front of the princess?!"
"I promise," said Athena with a sad look.
"Mom?!" asked Percy in shock.
"Yes," said Athena, "Percy Jackson, meet Simon Petrikov, the Ice King...and my last child."
Percy looked shocked as the Ice King asked, "Who is this Simon, you guys keep talking about?"
Finally done after a mix up of episodes and trying to figure out what to do with Percy. I finally found it! And with a few more minutes left of my Birthday I am glad I finally finished this :)
This is Birthday Gift to me :) Hope you guys liked it