AN: Hello there dear readers, I have come to you with a new story. I've been wanting to do a story while using the Chaldea cast for a while and I have found the perfect setting for them! I'm glad.

Knowledge of both Fate/Grand Order and Worm is suggested if you want to have an easier time understanding the references.

Without further ado, let's let the story do the talking for itself.

Enjoy!

ARC 1: Brave

Grey dull metal rumbled at me. I could see the smooth surface tremble, a loose screw shook and twirled as the trembling continued. I followed the line where the screw had been drilled into, seeing certain indentations from the design of the ventilation system that connected with the outlet. I took a deep breath, feeling the thin mattress beneath dent, my lungs filled in with cold artificial air. I let it out, my eyes focusing on my lips as I let the air out.

Then I repeat the process again.

The continuous sound of 'WOOOM' made me fidget, my heart race and eyes watered. I let out another breath escape me and flinched.

It's not working…I can't stay in this damn room anymore!

I tore myself from my bed, I stopped and stumbled a little as the room I was in spun a little. I shook my head, then I stomped towards where my uniforms were. I stopped looking at the disorganized and thrown clothing on the small desk and chair, my hands went for my worn and patched up Combat Mystic Code but I stopped, if I wear this I'm just inviting my bad luck to rear its ugly head again, my hands went for one my most recent outfits. I took the black Mystic Code and began putting it on.

The straps of my Arctic Mystic Code were buckled, I made sure the belt around my waist was holding my skirt in place and nodded in satisfaction. I noticed a tear on the right black sleeve of my outfit and I traced a finger over the ripped fabric, wondering when was it that I let myself get tagged by the enemy.

Not like it matters now. Whoever did this is probably long dead…Along with everything they cared and grew up with, I shook my head and focused on the present.

I turned towards the metallic door of the bare and sterile bunk and got out of the small hole that I had claimed as my room. I walked down the hall, feeling the floor rumble underneath me with each step I took. Walking for a few meters I reached the door that led to the command center of the Shadow Border, I hear prickling a little as muffled chatter pass through the metallic walls. I got inside—

"Preposterous!"

I jumped, well, more like tiptoed before settling back down and look toward my left at overweight and sweating director of the formerly known Chaldea, now current Captain of the Shadow Border, Goldolf Musik. Dress immaculately in his white and gold coat, gloves, pants and shoes, blue button-down dress shirt. The man reached for a handkerchief from his pocket, drying up the sweat rolling down his pale chubby cheeks. His blonde hair and mustache sticky to his pallid skin.

"Are you alright?" I asked, tilting my head slightly to the right and feigning ignorance.

"Of course not! And I won't be alright either! No! I refuse to be alright! I just met the Old Man of the Jewels and you expect me to be alright!?"

My lips quirked up, seeing a movement to my right, I saw Meuniere turned from his sit overseeing the computer system of the Shadow Border. His lips were pulled down, eyes narrowed into slit as he regarded Goldorf, a typical expression on the darker blonde and green uniform Chaldea Staff member whenever dealing with Goldolf's antics.

"Yeah…we all did."

Goldorf snaps towards him, eyes wide. "What!? Is that all you have to say!? After meeting such a legend in the flesh!? I had thought that I would've been destroyed for sure!"

"Why?" Meuniere drawled as he turned back to the computer screens before and continued working.

"Why!? Because that is the man who ruins the life of any magus who he comes across! A t-trickster with the power to send you to other worlds out of his infinite boredom! I was terrified!"

"My, my Captain, you shouldn't be believing in such false rumors! You could invite the wrong reaction from the right people."

I turned towards the smiling little girl, her blue eyes bright and sparkling, round face framed by her dark brown hair. She looked back at them from one of the driver's seat, her colorful renaissances outfit contrasting against the monochrome colors of the CC room. Da Vinci's blue eyes shifted towards me and I felt my lips pulled down slightly—

The face of an older da Vinci flashed before my eyes, covered in blood and eyes glazing over.

"Hahaha! Miss da Vinci do leave Mister Goldorf alone. Seeing a man be incorrect about their prior deductions and realize this error is truly the most amusing thing to see!" The voice of a good culture man beside da Vinci sounded off.

The chair spun slightly, showing a pale man with black-slick-back hair, wearing a long black trenchcoated with a Victorian-like suit underneath the coat. Sherlock Holmes looked at Goldorf with an arching eyebrow so high and pointy that it almost formed an upside-down 'V'. His smirk seemed to be just as pronounced as his eyebrow, making the overweight man turned red.

"Gah!"

I let out a small sigh escape my nostrils and moved further into the CC room. I stopped, my eyes squinting shut slightly as a bright yellow light filtered through the Shadow Border's armored glass windows. I turned towards and peeked at the world outside.

There was a myriad of colors, red, green, yellow, purple, blue, orange and so many more. They twisted and turned, elongating like the branches of a tree and showing a near limitless amount of possibilities. Shining stars glowed brightly and proudly before disappearing through the countless colors, their light swallowed by now stagnant colors.

I recognized it quite easily, pulling some locks of my auburn hair out of my eyes. I myself had a hand in snuffing out those shining stars, those worlds filled with possibilities, hopes, dreams, and ways of life by now.

"Sempai?"

I turned around to see Mash, the girl was armored up. Her Ortenaus suit clung to the pallid hair girl, the visor pulled up over her head. 'Clank-Clank-Clank' sounded off as her armored feet took steps to approach me.

"Armored up already? You know we won't reach our destination until a couple of hours right?"

"I know, but, you suited up yourself as well sempai. It's because you got anxious too?"

"I…" I looked away, stepping on the balls of my foot. I felt a tear through my fingers and I stopped, tightening my hold over the ripped fabric of my shirt.

"Alright! Everyone roundup, let us have a last minute meeting." Da Vinci spoke, intervening before I had to find a reason as to why I didn't just sleep in. I moved around Mash, stepping away from her. I stopped and turned towards Mash, who looked at me with quirked eyebrows and an intense gaze. I felt like recoiling at that.

"Nah, I just wanted to be ready for anything." I forced a confident grin, before turning away from her and focusing on the now mini-circle of people. I stepped into the group.

"Okay everyone—!" Da Vinci stopped, blinking slightly as she looked down. We followed her gaze and saw a small squirrel-like, white fur and fluffy Fou running right into the center.

"Fou fou!"

"Well it would seem everyone is here," Holmes said, leaning back slightly. Mash knelt down beside me, spreading her arms for Fou and the small creature yipped, running up to her arms. She stood up with him cuddled up in her chest.

"Hrm, well now to continue before I was interrupted. As Ritsuka-chan said, we are mere hours away from arriving into the World that originated the catastrophe. But what you may not know is that we actually have a few minutes left before hitting the wall connecting to that World."

"Wall?" I asked as I looked down at the child version of da Vinci.

"Indeed, it is the wall that the well accomplished Wizard Marshall saw that separates the World that will reach calamity, to our World which has already passed the point of calamity."

"This is all so confusing…we must investigate something on such a massive scale? Why us? We already have much to deal with the Lostbelts in our World!" Goldorf bit into his right index finger, sweat rolling down his whited face.

"Come now Mister Goldorf, you mustn't look at this situation in such a bleak manner! Instead, look at it as called for discovering a mystery! The Wizard Marshall has given us an opportunity to discover the truth. Is the enemy that holds these Worlds hostage the one responsible for whitening ours in an endless nothing? These question must serve as fuel for our next quest!"

"Whoa, Mister Sherlock, even despite how bad things looked you are still this confident?" Mash smile, eyes brightening. "Well of course you are, Sherlock Holmes isn't afraid of solving cases and helping the innocent."

"Um…" Holmes blinked a couple of times, his arching eyebrow finally sagging down as he looked away.

I had to shake my head at Holmes reaction. The Servant was so caught up and giddy at the prospect of being put on this case and solving a great mystery that he was being purposely ignorant to common sense. I looked at everyone.

"Anyways, our approach to this case…how do we handle it? We go the Singularity route or…or the Lostbelt route…?"

"Do we even have a date? I mean I don't even know how far back we've been thrown when that guy used his Magic and the CHALDEAS replica." Meuniere's word seemed to make Goldorf shudder.

"Are we absolutely certain that that Old Man of the Jewels is not playing a prank on us? You folk haven't been inside the Mage Association and haven't heard the terrifying stories of him!"

Da Vinci rolled her eyes, turning around and heading for the computer screen on the driver seats.

"Like I already told you, great Director, listening to such defaming rumors may get you in trouble in the future. Now, let us see the date. We're supposed to be landing in the nineteen-eighties, the moment when the Worlds were segregated…oh, okay, we're about to pass the wall. So hold on ju—AAAAAAAAAAAAAAAAH!"

Everyone jumped, the shriek that came from the Servant was bloodcurdling, raw and strained.

"Da Vinci-chan!" I was already moving, the hairs in the back of my neck standing straight at the uncharacteristic shriek from the homunculi-slash-Servant. I stopped when she fell down the floor, convulsing and particles of mana suddenly being released from her.

"GUGHRK!"

"Mister Holmes!" Meuniere's cry made me stop and whirl around, seeing the male Servant in the exact same position as da Vinci. I froze, what could I do? What was even happening!? I—

Everything went black. I felt something scratching into my brain and I grabbed my head, shaking it harshly to alleviate the sensation. I opened my eyes and—

A forest of writhing, convulsing and moving flesh—

I stumbled back, my eyes frantic and pulsed hammering against my chest.

Tentacles reach towards falling stars, seeing their trajectory and confirming that the other was dead—

I slammed my hands against my head. "What is thi—!?"

A human form stood in the void of stars, looking at the world. Reaching a hand towards it and—

A loud 'THUNK' made my eyes snapped towards the armored girl who fell to her knees. Fou was beside the girl yipping at her and licking her face. The image became a blur as I focused on Mash, the excruciating pain becoming but an irritating throb.

"Mash! What's wrong!?"

"I…I don't know…but it…hurts…Sempai…it hurts!" I slid on the floor, reaching the girl and wrapping my arms around her. I immediately flinched away, hissing in pain as my hands were red hot. I look at her, feeling my chest heave and contract as I watched Mash tremble and her body starts to let out steam.

"W-What is this!? A trap!? Mister Meuniere! To the driver's seat now!" Goldorf voice was shaky but had gained some strength when he issued his command. There were heavy, hurried footsteps that were followed by 'CREEK!' from the driver seat.

"What the hell do you mean by that!? We need to help them!" Meuniere exploded, his words laced with anger. Mash fell down on the floor face first, her arms holding her chest and moaning incoherently. From the corner of my eyes as I saw his feet fidget, left to right. As if he was unsure to run towards the shrieking da Vinci or stay with gurgling Holmes.

"We must turn this vehicle around! Whatever is happening we can prevent it if we pull back!" I turned away from the pained Demi-Servant and looked at Goldorf. The man was fast at work, his hands going for the wheel of the vehicle, tapping buttons quickly and pulling sticks to make something happen. The Shadow Border rumble and the blonde magus let out a surprised squeak.

I turned away from him and towards the other still standing crewmember.

"Meuniere go help him!" I order the Chaldea Staff member, who looked at me, then nodded and ran for the driver's seat. I turned back to Mash and—the human shape reach out for— I bit the inside of my cheeks, wincing at the sharp pain and metallic taste. I ignored them and went to pat Mash's head and wincing at the increased heat. "It's going to be alright, Mash. Just breathe and focus on my voice. Okay? Can you focus on me, Mash?"

"I…I…I'm…t-t-trying…!" Her broken voice made my chest tightened as my eyes darting to every inch of her shaking body. Fou started rubbing his face with her body, yipping at her.

"Mister Meuniere have you found how to turn us around!?"

"No! We're completely railroad to our destination!" I turned towards the two, seeing them tapping and checking computers monitors. Goldorf attempting to brute strength the helm of the border into turning the vehicle away.

"We—" 'PING-PING-PING' "What the!? What in the blazes is that pinging!?"

The monitor in front of Meuniere was flashing red. "It's our scanners! They picked up something! It's coming from three worlds ahead!"

"Lock on and get us in that world then!" I order, giving the two drivers my full focus. Meuniere turned towards me with wide eyes.

"Are you crazy!? What if it's a trap!?"

"Then we'll deal with it! Right now the only people who can defend us are screaming and disappearing! So if an ambush is waiting for us we'll connect to a Leyline and deal with them! Meuniere lock us on onto the signal!"

"I-I—! Fine whatever you say, boss! Hey, Goldorf can you handle the driving!?"

"Of course! I am the captain of this ship! So I'll make sure we all get out of this in one piece!"

"Alright then! We're approaching the signal in ten seconds! Locking onto unknown frequency and activating Zero Sail system in five, four, three, two, one!"

"Hold on everyone!" Goldorf grunted as he snapped the wheel towards the right.

The image of myriads of colors from the windows stretched and thinned until only a bright star was consuming the windows. It grew in size and brightness until I couldn't look at it anymore, my eyes closed and the Border rumbled and tumbled. I felt to my knees, instincts making me brace myself for the fall and protecting my head from smashing against the floor. I opened my eyes and saw the Command Center was completely white, sparks flew from the ceiling, glass burst from the monitors.

Then, the white disappear—

I looked up as I felt the brightness leave. My eyes swiveled towards Goldorf and Meuniere, both covering their faces with their hands and screaming. I focused on the windows and saw blue—

CRASH!

I flew back, a strangle cry flew through the rocketing Command Center and I wonder for a brief second if it was from me or from Goldorf or Meuniere. My back hit against one of the monitors and the thought was forgotten as I felt my vision go black.