Author's Note: I made this fan-fic as an answer to those who asked for me to continue "I Want To Know"(Even if it was about to end)

So instead, I created a separate fan-fic, this contains more Simon and Marcy stuff.

Disclaimer: I do not own the series, Adventure Time, and any following quotes or lyrics that will follow in the fan fiction. Adventure Time and any other lyrics or quote is owned by its legal owner.

AN2: I have tweaked the story to make it look better, I wasn't that good before, heh heh. Nothing to worry about, the story remains the same.

Inside a dark macabre cave in Ooo, where the afternoon light can't penetrate, lies a strange looking house of only one resident.

The resident was a woman, a trickster vixen. Her name was Marceline Abadeer, The Vampire Queen of yet an unknown place or kingdom. Her looks were stunning, her long raven silk hair and her slender build were of a beautiful combination.

It was magnificent, yet it effectively disguised how ominous she could be just by looking at her.

She was busy composing a new song with her Axe-Bass, her big red double-bladed axe that was fused with a bass guitar.

Her song was mainly about her journal with 500-years worth of memory which she remembered to continue after she was rudely interrupted a long time ago.

The low beat and the quick descending tones made it clear that this 500-year worth of memory was as of sad tales. Marceline sang for a full four minutes and concluded the song with a dramatic finish with a long strum.

She closed the journal and saw the title which reads "Gunter". She remembered that this was a birthday gift near-insane Simon gave to him, before he turned into the Ice King and left. The thought made tears dare to roll down her cheeks but was quickly subsided.

Marceline placed her Axe-Bass on the couch and floated on top the couch to ease herself. The sad reminders of the past made her a bit sad and lonely, especially if she went too deep back to her childhood. She hid these feelings for a long time, it was not important to others therefore she didn't tell anyone, it seemed a bit embarrassing.

Marceline continued to think about her past and her thoughts of it. It was full of hurt, especially the years that are not too far. She delved deeper, thinking all the way back to the most happiest moments of her life. She sighed and quickly shrugged them off, it started to sound sad to her.

The past was gone now and deserves to be mere dust on an old book.

She sat there silently, thinking of a new song, sometimes she would slip back to the past but it she quickly got back to what she was thinking at the first place.

Everything was silent until she heard a plate shatter in her kitchen. Marceline floated straight up and gave a sense of alarm. "Huh? Who's there!?" Marceline shouted, she went closer to see a blue robed lump on the floor. It was the insane king, Ice King. He revealed his face and grinned a bit. It made Marceline sad to see his face, he was the utter reminder of her happiest past that was long gone.

"Oh sorry, Marceline, you were singing and-" Ice King was cut off by a bored sounding Marceline, he was awfully relieved that she wasn't mad.

"You didn't want to disturb me and you decided to sneak in and get some sugar?" Marceline continued, she had to let this slip, she didn't want to hurt one of the last reminders of her past. Ice King nodded and got up his feet and carefully picked the shards. Marceline got a dust pan and a broom and cleaned them instead, Ice King just put his shards on the dust pan and watched Marceline do the rest.

"Again, I'm sorry for breaking your plate and sneaking in your house for some sugar, Gunter ate my sugar again, you see" Ice King explained, hoping that she will understand the situation.

"Nah, don't worry, that's just a guest plate for kicks and parties, I get that all the time" Marceline said happily. She easily forgives her old Simon, even before he became an insane princess-snatching king and especially after she read one his last notes.

"So, can I get some sugar?" Ice King asked once more.

"Sure, it's on the top drawer" Marceline answered, as she returned to her couch.

Ice King took a small plastic of sugar from the drawer and looked at Marceline. He noticed that she seemed a bit down. Marceline was just reminded by her past more, especially with Ice King around, it made her last happy memories seem sad.

Ice King placed the plastic of sugar in his beard and walked to Marceline and sat on the stiff couch. "What's got you down, Marceline?" He asked seeming a bit concerned. She sighed and grabbed her journal and showed the cover to the Ice King.

"Do you remember this?" Marceline asked with doubt, of course he can't remember.

Ice King noticed the word "Gunter" on the cover. "No but I bet Gunter vandalized that book" Ice King said, he really did seem to not care nor remember. "You know, I bring him here sometimes and he just scribbles on stuff" Ice King muttered.

"It's my journal or my diary, in other words" Marceline said softly. Ice King raised an eyebrow, he had no knowledge of this book.

"Why're you showing it to me?" Ice King asked. Marceline sighed and opened the journal up.

"It's one the last things you gave me" Marceline said sadly as she flipped to the first few pages. She read the pages just to give an idea to Ice King.

"Dear diary, Simon gave me this book for my birthday and asked me to write on this book so that I wont forget him, it made me cry that Simon said that he will leave one day but he said he will be there for me and I just have to trust him in this" Marceline read sorrowfully, it made her sad on the inside.

"Who's Simon?" Ice King asked confusingly, scratching his beard.

"An old guy, he was the only person to be truly dear to me" Marceline answered with sorrow.

"Interesting, can you read more?" Ice King asked, he always liked to hear good writing.

"Of course not, old man, this is a diary and diaries are supposed to be secret" Marceline answered, she didn't want him to read it anyway, it will be a waste of time, besides, he couldn't remember.

"Aww, pretty please?" Ice King smiled, he sounded childish but this did not impress Marceline.

"No, just go now, please, Ice King" Marceline said sadly, she seem to sound cruel but it made her want to cry.

"Ok then, thanks for the sugar by the way" Ice King said happily, as if there were no sad situations. He stood up, walked to the door and flied away.

As soon as he left, Marceline's tears came out and a teardrop fell to the first page adding more splat marks to the paper. It was because of the last words on the first entry which reads:

"Don't leave me now, please, Simon"

Meanwhile, while Ice King was flying back home.

"Hmm… Marceline's journal would seem interesting to read" He thought insanely, he wanted to know her secrets, he would think that it would be funny.

He will try to find more about her.