I've decided that his partner will be Canyon! If you don't remember her, she was Billy's ex in the show.

She is old enough for it to not be creepy and she is possibly immortal, so it's not weird to consider her immortal in this one.

Also, she never got together with Billy since he died in this fic. Plus...giant girlfriend. She's perfect.

If you have any objections, do say.

JustAFan123: to put it simply. He can bring his imagination into reality. It has restrictions, but they are all purely a result of trauma and poor mental health or just personal preference. (He dislikes making things that are alive, though he can make them accidentally in rare occasions.)

Hope that cleared it up.

Enjoy.

xxXxx

"WOOOO!" Exclaimed three heroes in unison as they rode a giant motorcycle, slaying hordes of monsters with swords and magic.

One of the heroes was a red head giant wielding a sword. The second was a blue haired giantess wielding water like a sword. The third was wizard clad in pitch black armour.

They were Billy, Canyon and Nightclad.

The three rode through straight ahead before noticing a ravine coming their way. They didn't even think about going a different direction. They drove towards the cliff without hesitation, still ending monsters in their wake before dashing up a rock as a ramp with enough speed to...fall straight into the ravine.

But somehow the three were teleported with their motorcycle to the other side of the ravine safely.

"Dang! Was so close too." Said Billy dejectedly before blowing a raspberry

"Just admit it, Billy. You've gotten fat." Said Nightclad jokingly as he created a cake with his magic as he stood on the middle of the handlebar of giant motorcycle. "You'll never be able to make that jump. With all the cake you've been eating."

Nightclad promptly threw the cake over the ravine behind them without a single thought, hitting one of the monsters on the other side.

"What? No. Canyon, I'm not fat, am I?" Asked Billy calmly after turning to the giantess while pinching his side, checking for fat.

"I mean... you HAVE been getting little heavy." Said Canyon with a cheeky smile, joining in on the joke before high fiving Nightclad.

Billy gasped. "Betrayal! After I've trusted you." He said in a comically grim tone. "Very well then. I shall prove I'm not fat once and for all."

Nightclad and Canyon giggled at Billy's tone before the latter asked. "And how's that?"

Billy narrowed his eyes and took a deep breath as he stared into the skies. "We shall go on a quest. A quest to get the tightest, most luscious PACK OF ABS OF ALL TIME, BEFORE AND AFTER!" He declared enthusiastically, revving up the motorcycle. "ARE YOU WITH ME?"

"I'm down." Said Nightclad cheerfully with a shrug before turning to Canyon. "You?"

"You think I'll miss this, Clad?" Exclaimed Canyon excitedly. "Of course I'm going!"

Hearing his friends' responses, Billy nodded with a serious expression on his face. "WHAT DO WE WANT!" He exclaimed as the motorcycle dashed forwards into the horizon.

For that moment, three felt as if they shared one goofy brain. And that brain had only one unified thought inside.

"ABS!" Exclaimed Nightclad and Canyon in unison

"AND HOW DO WE WANT THEM?" Asked Billy enthusiastically as he increased the speed of the giant motorcycle.

"Tight and luscious!" Exclaimed Nightclad and Canyon cheerfully.

"YEAH!"

And with that declaration, the three chanted "abs" as they rode into the sunset with happy smiles on their faces.

xxXxx

The present, in Marshall's home.

Oracle Crystal hummed cheerfully as she stirred a pot of soup in the kitchen as she wore a chef hat.

"Ah, delicious soup made with the tears of cartoon theorists whose theories were disproven one episode later. HAHA!" OC cackled before taking a sip of the soup. "Delightful!"

As OC was celebrating her evil soup, she noticed someone flying into the living room. It was Marshall wearing a white t shirt and dark blue shorts, yawning. It seemed that he had just woken up.

Seeing him lay down on the couch, she decided to approach him with a bowl of her soup.

"Hey, want some soup? I made it with Matthew's tears." Said OC happily.

"Maybe in a bit." Muttered Marshall groggily. "*Yawn* anything interesting happened?"

OC's smile grew. "Well, it's been a few weeks and Hunson is starting to realize you weren't kidding when you said you wouldn't talk to him again. I think it might become my new afternoon comedy." Said the sentient crystal orb with a sinister smile. "Other than that, nothing."

Marshall frowned as he thought about Hunson. Still mad at the man for ignoring or misinterpreting everything he said.

Almost as if hearing that though, OC asked cheerfully. "Wanna prank call him?"

"No." Replied Marshall with a tired expression as he layed on the couch.

OC knew her roomie very well. Even without her nigh omniscience, she knew the source of this sudden wave of depression and decided to try and help.

"That's okay too." She said cheerfully. "Did you have a dream about one of your old adventures?"

Marshall smiled happily . "Yeah." He said cheerfully. "It was that time we went on a quest get a magic pack of abs that turned out to be evil in the end. Billy cried for, like, four hours after we killed it."

"Sounds like fun." Remarked OC with a bright smile.

"It was." Said Marshall with a smile before he quickly deflated. "Now I'm a sad sack of reincarnated meat with nothing to do except watch stupid movies all day."

OC put a hand on her chin as Marshall returned to brushing his head against the couch. Her bestie is sad and she needed a way to make him happy and what better way than-

"A quest, it shall be then!" OC exclaimed excitedly. "You shall go on an adventure to find the greatest hobby ever seen!"

Marshall turned to OC and giggled at her enthusiasm.

Then he went dead silent. What if he actually DID go on such a quest? Billy did randomly start a quest for legendary abs and technically found them. Why can't he do the same for a hobby? Something he could enjoy.

"That doesn't seem like a bad idea." Said Marshall in a serious tone. "Alright, I accept this quest. I'll suit up-"

As Marshall was about to put on his Nightclad armour, OC yelled. "Stop right there! What do you think you're doing?" She asked crossing her arms.

"Uhh, suiting up...for adventure? Like I usually do?"

"Tsk tsk! This adventure is for Marshall Abadeer, a depressed teen with issues and a dark past! Not the great hero of old, Nightclad!" Said OC in exasperation. "This is supposed to bring about character development! A journey of self discovery! And you want to ruin it with an edgy hero from the last century?! Have you gone mad?!"

"Okay, okay. No armour." Marshall replied as he stopped himself from magically wearing the armour and just magically changed into a blue jacket and black pants.

"I'll be watching you." OC whispered menacingly.

Marshall nodded along to OC's antics as he made a portal to leave and leapt inside. It was time to go on a quest. It was...

Adventure Time.

xxXxx

In an open field of grass where Marshall teleported.

"Aaaand I don't know where to go." Deadpanned Marshall. "Billy made it look so easy."

Marshall crouched down and began to think of what to do or where to go. Usually, he just followed Billy around or ran around fighting loud bad guys who are easy to locate so he never had experience adventuring on his own.

"Hmm, I need the opinion of adventure experts." Said Marshall narrowing his eyes as he put a hand on his chin. "All roads lead to Finn and Jake I suppose."

Marshall opened another portal that lead to Finn and Jake's treehouse and peeked through to see if he could find the duo. And he did. They were eating breakfast peacefully.

Deciding this was somehow a good time, Marshall called out.

"Hey."

Finn and Jake quickly turned to the portal in their kitchen with a head sticking out before screaming in surprise. The screaming quickly got quieter and quieter as the two noticed it was just Marshall.

"Oh, hey Marshall. Watcha doin over there?" Asked Jake nonchalantly as he eyed the portal.

"I'm on a quest to obtain the greatest hobby of all time...Or a decent one." Said Marshall calmly as he jumped into the kitchen through the portal. "Y'know, like how Marceline has her songs and music."

"You don't have any hobbies?" Asked Finn causing Marshall flush in shame.

Marshall fiddled with his fingers nervously as he failed to come up with any healthy answer, prompting Jake to chirp in.

"Hey, no shame in that, man. We'll help you find the hobby of your dreams."

"Just after we finish eating." Said Finn cheerfully as he dug into his food.

"Oh, this reminds me. I didn't have breakfast." Said Marshall in realization.

Jake saw this and decided to offer Marshall to eat with them. "You can eat with-"

Jake couldn't finish half his sentence before he noticed Marshall standing with a floating table that seemingly appeared from nowhere. On the table was the fanciest three course meal with giant portions that Finn and Jake had ever seen in their lives and some fancy eating utensils.

"Dude, where'd you get all that from?" Asked Finn in surprise at the large table filled with food.

"Oh, I just make them with magic." Said Marshall before demonstrating his abilities by creating a large cake from nothing then making it disappear. "See?"

Finn and Jake sat stunned at the nonchalant display of magical prowess. Not because of it's strength, but because of the sheer convenience such power provided.

"Guess that rules out cooking, huh?"

xxXxx

After everyone finished their food, Finn, Jake and Marshall all headed outside to get Marshall the perfect hobby.

The first choice was...painting.

"Soooo, I'm supposed to take this brush and dip it paint and rub it on this white rectangle, right?" Asked Marshall as he held a paintbrush in front of an blank canvas.

"Yup." Replied Finn cheerfully.

"Just let your imagination flow into the canvas." Added Jake with a smile.

"Hmm, I do like cool drawings."

Marshall narrowed his eyes as he listened to Jake's words. He took a deep breath and started painting with pure determination on his face. He sliced and diced the canvas with an explosion of colors. He did quickly get bored of it however and rushed through some parts.

And at the end, Marshall presented his painting to Finn, Jake and BMO without seeing it himself.

"Uhh, it's...good?" said Finn as he and Jake cringed at the painting.

Noticing their odd behavior, Marshall finally saw his masterpiece. Two poorly colored stick figures blending into each other under a purple sky.

"I think it looks beautiful." Added BMO innocently.

Marshall frowned at how terrible it was and tapped it with the brush, using magic to turn into a beautiful painting of a giant with two heads.

"*Sigh* i hate this." Muttered Marshall tiredly. "Plus, I can just cheat."

Jake frowned upon hearing this and put a hand on his chin. What hobby was cheat proof for Marshall? A hobby that no matter, cannot just be magicked into reality.

Suddenly, an idea popped into his head. "I got it!" He said with a smile.

He extended his legs as jumped into the treehouse through the window before bouncing back with a notebook and a pen in hand.

"Bam! Writing! You can't magic imagination!" Said Jake as he gave Marshall a pen and a notebook.

"I do imagine stuff a lot." Said Marshall before nodding and starting to write.

Hours passed as Marshall wasted the day over discarded papers filled with failed ideas. By this time, Finn and Jake had went home and checked on him multiple times as he layed there in the grassy fields.

It was only until sunset that he actually stopped as Finn and Jake checked on him.

"So, how's it going?" Asked Finn cheerfully.

"Horrible! I can't tell which is better here, astonishment or awe." Said Marshall dejectedly as he clutched his head. "I even conjured a dictionary! Ugh, there's just too many expressions and characters I have to pay attention to at the same time. It's too stressful."

Marshall frowned angrily before he threw the notebook into the canvas from before and curled into a ball.

"Stupid canvas. Stupid notebook." Said Marshall, unknowingly sending his magic into the canvas and notebook. "Stupid me."

As Finn and Jake were about to comfort the half demon, they felt the ground rumble. They quickly turned to the source of the rumbling and found the drawing on the canvas climbing out. A two headed giant had appeared.

And not just that. Words flew out of the notebook and began orbiting the giant as if narrating its actions.

Finn pulled his sword as he and Jake got ready to fight. Seeing this, the two headed giant roared at the duo before the word "Roar" formed around it and flew towards the duo.

The duo dodged before they began fighting the two headed giant. But the monster proved itself a worthy foe as the power of graphic and written arts combined.

Marshall saw this battle and was enthralled his mind. Something had clicked into place and he found inspiration...he found his calling.

"Of course! Why didn't I think of this?" He said face palming as he conjured a notebook with blank pages to his hand. "One panel should do for now."

Using his magic, he drew a scene onto the notebook and furnished it with dialogue. It was...a comic!

Marshall took the comic and excitedly ran up to the two headed giant. "Hey, big guy!" He exclaimed loudly. "Tell me what you think about THIS!"

Marshall enchanted the comic with his magic to become like a black hole and suck the two headed giant inside its story.

The two headed giant struggled and writhed in the grasp of the magic comic, but alas, it and its words were no match.

It was quickly absorbed and became part of the comic, falling down a ravine as a vengeful character stared down at it with contempt saying "Goodbye, forever."

Before Finn and Jake could congratulate Marshall on his new hobby or even see the comic properly, Marshall was already half way through a portal he created.

"Sorry, guys. I need to go make 20 more pages, you can see it then. BYE!"

And just like that, the quest for a great hobby was complete.

xxXxx

I wanted to give him a quirky thing to do in his free time. Now he makes comics and comic books.

Tell me how I did. Leave a review.

Toodles.