Note: To avoid confusion and misunderstanding of character and events, the story has elements of both from the show and from the Comics. here is some elements derived from the comics:
Ewlbo - A computer Virus that corrupted Beemo. he was created accidentally by the Human named Randall Byron when he merges himself with the Omega Algorithm military supercomputer. Marceline hacked the supercomputer in order to reach Randall Byron and stop Ewlbo. (See Issue 11 - 14).
Dr. Broccoli - PB's unknown enemy, he went to her lab to destroy her Silly String device in order to ruin her in the science conference. Jake fooled him by recruiting Blergal an alien who lived within the device. the alien disguises himself as Broccoli's mother and orders him to go to his room. the device was turned into 4 fireflies when Finn and Jake shouted "WHAT THE-?" (See Issue 17)
though the Comics are semi - canon from the show, it provides unique realism to the story...
"We are almost done, give me a speculation again of the suit." Marceline asked, as she pulled herself out of the Nightingale, she was holding a wrench and her red tank top is soaked in sweat and grease. If she could take off her clothes, she would do so.
Beemo show the newly scanned suit diagram of the Nightingale, Marceline eyed the hologram with outmost inspection. Her eyes narrowed, looking at every angle. Then she point a part of diagram. "You miss a spot Beemo."
"Oh, right sorry." Beemo updated the holographic diagram.
"There that's much better." She looked at the new part of the diagram then went back to her suit, now carrying a blowtorch and a wielding mask. She was in the middle of her work when Bonnibel and Finn burst in, the door slammed open with a loud thud. Beemo let out a little yelp.
"YOU!" Bonnibel roared as she stomped towards where Marceline was, the vampire didn't not notice her until she was grabbed at the shoulder and being pinned to the wall beside her with a loud thud.
"Hey!" she exclaimed, until she saw Bonnibel staring at her with anger. Her face went embarrassed, "Hey Bonnie..."
The princess snarled at her, "Don't you hey Bonnie me! You, you sicko! Why! Why! Why did you do it!? Can't you see I'm a little pressured right now!?" she said, death grips on Marceline's tank top went a little tighter, surprisingly lifting her off the ground.
"I... I..." the vampire stammered as she blushed.
Finn manage to grabbed Bonnibel to make her back off, "Peebles, enough, what did I tell you!" he exclaimed as he pulled Bonnibel away with the outmost difficulty. He succeeded and she leaned back on one of the benches. Breathing deeply to cool herself down. Finn stand between her and Marceline who looked at them a little shocked, Finn crossed his arms and raised a brow. "Well..."
The vampire scratched her head awkwardly, her gazed wandered the lab. "Well, you know me, love to make fun of people, messing things up." She said, earning a loud snout from Bonnibel who is still trying her best not to flip out again.
Finn just remained passive until she finished her explanation, then he said. "Marcy, there is a time and place for jokes and stuff. Right now are tough times, do you realized that she faced a lot of stress when her stuff you stole went missing? The world didn't know that she's the Iron Princess, and we decided that we should tell them in time. Look, it was not cool to mess with her like that, it almost sends her to the edge."
Marceline looked down in shame, right now she couldn't help but to act like a child who is being scolded for being naughty. She shifts her foot back and forth.
"Now your being like a kid" Bonnibel immediately said sarcastically.
Marceline looked up and hissed at insult. Finn keeps a stern look and boring it on her face. Marceline back down immediately. "You know Marcy, we can have a lot of fun in other ways, not like this. Since you know our other secret, maybe would mind keeping it for a while until we reveal it to the world on our terms."
"Sure. At least I can do for the damage I cause to you guys. I am sorry." She said, then she approached Bonnibel who still leaned on the bench still not looking at the vampire. She held the princess hand, "Bonnie, I am really, really sorry for what I've done, I shouldn't have prank you perfectly."
"Perfectly? Indeed very, very perfect. I almost killed you! Yes so probably perfect indeed." She sighed, then continued "We cannot take the past back, let's leave it that way." She said, still not looking at the vampire.
"Bonnie... I really sorry." Now she was swallowing up her pride.
"Okay, okay, I forgive you. But promise me to keep our secret okay...?"
Marceline smiled, "sure you got it princess..." she removed her hand and proceeded to continue her work on the Nightingale.
Bonnibel and Finn eyed her armor with amazement. "So how did you manage to build this Marcy?" Finn asked, Bonnibel went close to inspect the armor, she then added "Since when did you manage get interested in this techie stuff?" she asked.
Marceline look up towards them, "Hey, I'm a radical, sexy dame, but that doesn't mean that I don't know anything. Finn you tend to forget that I save Beemo from the computer virus Ewlbo remember? I hack the system to save Beemo remember?"
"Oh right..." he said, remembering the time where him, Jake and Marceline save Beemo from the supercomputer virus Ewlbo. She hacked the main military supercomputer in order to reached Randall Byron, the human who accidentally maid the virus by merging himself and the 'Omega Algorithm' supercomputer.
"Wait, hold on..." Bonnibel interjected, "...did you hack a supercomputer? A Military supercomputer?" she still cannot believe that Marceline can do techie stuff let alone hacking computers.
The vampire shrugged "You underestimate me too much..."
"Wow, this is new." She just complimented, crossing her arms and looking at the suit. "So, how do you manage to made these? The designs are remarkable, sleeker forms for faster manoeuvrability but lacks armor."
"My dad has a lot spare metals and parts back in the Nightosphere."
"You went in good terms with you dad?" Finn asked.
"Yeah, he gave me a new set of fries, and he said he was sorry. Don't even think that I was bribed by the fries." She chuckled.
"I was about to think about that" Bonnibel interjected again.
Marceline grunt annoyingly, "Well since I'm done with the stuff I borrowed from you, here" she handed the prototype Arc reactor, and the blueprints; also she gave her own personal holo blue prints of the Nightingale.
"Why are you giving me this?"
"Well, since you call yourself a 'technical wonder child' I think you should have it. it will help you with the designs in the future. Also a peace offering for what I did to you." Marceline replied.
"Thanks this will help a lot"
Just as she finish her statement, Peppermint Butler came in. "Princess, the press is asking about the incident last night, may witnesses saw the battle between you and Marceline."
"Great" Bonnibel grunted, earning a laugh from Marceline.
"Gee good luck Bonnie." She entered her suit and prepares to leave. Bonnibel stopped her
"Wait, now you're leaving me?"
"Yeah that is your business, not mine"
"Our Buisness, Marcy... you made this entire thing, so you're coming with us." Finn took hold of her arm, to his and her surprise, Marceline didn't squirm.
The four left the room, to face the music, but Bonnibel went back to get her crown on the table. She asked Beemo, "Download the schematics of the Nightingale on you data. That will be the basis of the Mk VII and sort out all of the weakness of her suit, just in case."
The computer made a mischievous expression "Okay Princess..." with that Bonnibel left the room.
During the entire time, they all failed to notice a small robot brussel sprout minion hovers just outside the window. Surprisingly enough that Beemo failed to detect once again. When the four left the room and Beemo working on the schematics Bonnibel asked. The robot flew away, towards eastward to the far ends of Ooo.
The drone flew for hours end, flying over vast, different landscapes on Ooo. By sunset it reaches a Forrest were an abandoned military bunker stood. It went down the shaft that directly leads on the vast room. Then it landed on the nearest table.
"What is it?" a voice suddenly booms throughout the room.
The drone's reply is to play its holo recording, showing Bonnibel, Finn, Marceline, Beemo, the lab and the Hall of Armors. The figure took an abosolute interest on the Armors and Bonnibel.
"So Princess Bubblegum is the famous Iron Princess, I am not really surprised. Not too long now I will have my revenge, for tricking me with silly string device of yours. For I, Dr. Broccoli will be your greatest downfall!"
He stood up from his chair and walk towards the wall were a vast different blueprints were laid out. "Your boy fools me once, about my mother. But now I will not fall thought that again. They say 'fool me once shame on you, fool me twice shame on me..." he stopped rather awkwardly, his evil aura suddenly vanished, "Is that right, or it's the other way around? Anyway, I will have my revenge, get ready!" he then snap his fingers, immediately two hooded robots appeared behind him.
Dr. Broccoli gives a picture to the robots, "Bring her to me, immediately. Her toys are going to be good assets in my revenge."
"Yes sir" they took the picture and set off.
"Anytime soon, you are destroyed, Ooo will be mine, and no one can stop me!" he then gave his evil laugh as best as he could. Then looked at the files and blueprints of the Slime tanks and his very own super tank. Once that he is done, he will be invincible, at least in theory.
The picture that he gave to his robots is the picture of Slime Princess' sister Blargetha.