A.N.: Hello everyone! Recently watched Murder Drones and had the idea for this crossover. The main vibe will be sorta crack taken seriously (because Murder Drones mostly). Essentially, Copper-9 is teleported to a random isolated imperial system through warp shenanigans, to the horror and confusion of everyone involved. Hijinks ensue. For the Murder Drones universe, this takes place soon after the memory dive of episode 5, and before the gang goes to the labs and meets J and Cyntessa. J and Cyntessa are in fact on the planet when it is shifted. As there are quite a few elements of lore that are left to interpretation in MD, I will have to make assumptions or roll with existing theories. For the Warhammer 40k world, this happens in the 41st Millenium, prior to Guilliman's resurrection. This will not be a stomp fic where the 40k universe effortlessly crushes the Murder Drones universe, nor will it be one where a single Disasembly Drone can effortlessly crush entire chapters of space marines, though they will have the advantage at first.

The Praxis system.

A neglected, isolated solar system in an equally neglected sector of Imperial space. One that, as Imperial Governor of the only inhabited world orbiting the strangely dim star that made little if any natural light reach this world, was Gospard the Sixty Sevenths to rule in its entirety and totality. The heavy set man looked out through the windows of the tallest spire of the hive his palace sat upon at the endless urban hellscape below, his face set in all too familiar frown.

The planet his rule was based from was the fourth of eight equally desolate planets, and one that stuck out only through the fact it had a breathable atmosphere… if barely. Even then, it was a world that held little value. No fertile land to cultivate. No industry to produce great weaponry for the Astra Militarum. No, the only thing that the world had to offer to the wider Imperium was the minerals of the planet, and its population for the tithe… one that had been paid faithfully, regularly, to ensure no further scrutiny was brought to a world that could not afford to give more of itself.

It was the star that was to blame for much of the difficulties of the Praxis system. A malformed star, one that behaved in irregular manners, that cast warmth but little light, plunging much of it into darkness. He did not understand the specifics of it, that was the domain of the Adeptus Mechanicus. All he knew was that the star did not behave normally, and it had never made his job easier.

His ancestor, Gospard the First, had colonized the planet out of sheer stubbornness and little else. A bet gone wrong, from what he understood. It mattered not. it was now his to rule, and had been for thirty years. Thirty tiresome, stressful years. The only relief was that he could act with relative impunity on it, the wider Imperium seldom ever interacting with them. The last time the world had received anything but the barest of communications had been decades ago, and even that had been a wider announcement of the change of imperial governor for a distant world that clearly had more resources than sense.

Life was not easy on Praxis Quartus, certainly, but it was a life he had built for himself, managing political intrigues, malcontent rabbles of commoners and resource scarcity. For he was Gospard the Sixty Seventh, chosen by the Emperor himself to rule over this world. He made the sign of the Aquila, praying for His Light to continue to protect him for the rest of his days.

He nearly leapt out of his skin at the sound of the doors to his private office slamming open, a frantic looking pale skinned man stumbling into it, panting heavily. Gospard felt his face go red at the sight.

"You da…"
"My Lord!" The man screamed. "There is… there…" He stumbled on his words as he tried to speak, his eyes wide, his entire body shaking. The sheer fright the man was showing was enough to break Gospard from his rage at the interruption from his musings, his frown growing deeper.

"Cease thy mumbling servant! If what you have to say was so urgent it merited interrupting my private time, you can damn well say it properly!" He snarled. The servant took some time to calm down, his face still showing the deep fear that had gripped them, doubled now at the sight of his irate master. "Well? Spit it out!"

"It's…" He gulped, stepping forward, holding out a parchment Gospard only now noticed. "The orbital observatory has returned this to us with utmost urgency my Lord, they say… something has appeared within the system."

Gospard felt his stomach sink. Pirates perhaps? Or even… he snatched the paper from the hands of the servant, reading it with all haste. The more he read however, the further his frown deepened, until he turned to the terrified man cowering before him.

"Is this a joke?" He coldly snarled. "If so, it will cost you dearly."

To his surprise, the servant held firm, not caving despite his clear reluctance to remain before the angered Gospard. "This is no jest my Lord. It has been checked again and again, for we knew that to disturb you with such falsehoods would be…" There, the servant's surge of courage faltered, and they gulped. "Inadvisable." He gulped. "This… this is real my Lord."

Gospard stared at the servant for a long, long time. As he did, realisation slowly settled in.

The man was not lying.

His gaze returned to the parchment, his red face turning a pasty white as fear gripped hi to his core.

Oh Emperor protect him, they were not lying.

There was…

There was a new…

"Gather my ministers. My generals." He said in a whisper. "We must address this crisis at once."

"Yes my Lord!" The servant did not have to be asked twice, running out of the room with all haste, clearly relieved at the excuse to depart.

Gospard walked back to his desk, collapsing in his chair and reaching for the drawer, pulling out a large, half empty bottle of the strongest spirits he could find.

Within a minute, it was drained in its entirety.

"Emperor protect us." He said in a fearful whisper. "Sorcery is upon us."

"A planet." The voice was waspish, angry and sharp. "An entire, Emperor forsaken planet."

"Yes Inquisitor. It appeared a standard hour ago." The woman did not falter in the face of her superior's disbelieving stare. She knew the power the man held. She knew he could unmake her as easily as he had made her career. But she did not fear him. "We wanted to be sure of our reports before we brought this to you."

The Inquisitor was a tall man, six foot and a half of thin, corded muscle dressed in an extremely spartan inquisitorial outfit. His dark skin was heavily scarred from decades of service rooting out heresy whether it lay. He had come with his retinue and ship to the Praxis system in secret, intent on investigating the world and its rulership; Such an isolated place would be a wonderful place to seed cults of the Great Enemy after all… And it did not help that he was hardly in the good graces of his equals at the moment. Having the rank of Inquisitor in name only was… grating.

But he hadn't expected this. To make an entire planet appear… Or more likely, bring it from somewhere else in the galaxy… it spoke of sorcery beyond what he had experience with. Either that, or a warp phenomenon the likes of which could only herald disastrous events.

"Any information on it?" He eventually asked, eyes turning to the screens before him, taking in the scrolling data.

"Not much, our scanners can do little at this range. It appeared at the very edge of the solar system, though weirdly enough it has already entered a normal orbit around the star… it…" She hesitated. "Sir, nothing about this makes sense. It just… popped into existence, already rotating, already in orbit… and what little our scanners have picked up so far indicates that there is something very wrong with this planet. It… it seems to have partially imploded."

The inquisitor did not let himself be visibly perturbed. "Very well, bring us closer. I want to get more information before deciding on a course of action."

"Of course sir. Steering right towards it." She paused. "Oh, we did manage to get a few long distance pictures… nothing very precise, but perhaps of some use to you sir. It… made little sense to us."

The inquisitor glanced at the screen, then froze.

"...Out." He whispered.
"Sir?" The woman asked, confused.

"Out! I said out! NOW!" He shouted, his voice gaining a hysterical edge by the end.

The woman quickly made her exit, unsettled by the usually imperturbable inquisitor losing it so thoroughly.

Once she was gone, the inquisitor leaned against the wall, a shaky breath leaving him as he stared at the image on the screen.

The image was granular. Poor quality. And yet, it showed a very, painfully clear sight.

Humanoid entities made entirely out of metal. Inactive, to be sure, but there. Lying on the surface.

He had read through the archives that many Inquisitors hesitated before.

He knew knowledge of enemies only some of his peers were aware of. The descriptions had been varied, but some… some fit with what he was seeing now, if only vaguely.

He dearly hoped he was wrong. He really, truly wished he was. But in the case that he wasn't…

He had some astropathic calls to make.

There were Men of Iron to deal with.

Uzi tilted her head to the side. "So… we all agree our next step is going to that lab place right?" She glanced between the two disassembly drones before her, the snow crunching under her feet as she came to a stop.

"If you think it will help!" N agreed easily, sitting cross legged on an ancient car wreck.

V snorted. "This is a terrible idea, but you already know that. You'll just do what you always do and bulldoze ahead no matter the consequences."

"Bite me! If you've got a better one, I'm all ears!" Uzi snarled at the taller girl, who gave her an amused mean grin.

"Whatever." V glared at the smaller girl. "You've already exposed things better left alone, what's a few more?."

"V…" N said gently, placing a hand on her shoulder. "Come on. You know Uzi is just trying to figure out what's going on…" He rubbed the back of his head. "And to be honest… I can't say I'm not curious as well."

V faltered a tad. "...Well, I suppose we've got nothing better to do…"

They all froze as the world was suddenly bathed in purple light. The very skies seemed to glow with strange swirling patterns, impossible colors and strange apparitions mixing in with disturbing sounds…

Before all of a sudden, it was over, and the night sky returned to normal.

With a few exceptions.

"Sooooooo…" N said with a slightly uneasy smile as he stared upwards. "That's new. But hey, at least this sun doesn't burn!" He added with a wobbly cheer to his voice.

Uzi glared silently at the new dark sun in the sky, her visor's left eye twitching slightly in subtly contained rage and disbelief.

"Purple thing. What did you do?" V snarked, hiding the worry she felt at the sudden change in what had been their usual night sky.

"Why do you automatically assume it was my fault?!" Uzi snarled, pointing angrily at V.

"You are purple. The sky turned purple. Then the sky became different." V cocked a yellow eyebrow at the small worker drone. "Given how much strange nonsense you have been involved in recently…"

"Well it wasn't me, so bite me!" Uzi said, turning away from her with a harumph.

"Alright everyone, no need to fight! Let's figure this out together, yes?" N said, looking between the two with a wide smile.

"She started it." Uzi grumbled. "Ugh. What the hell even happened? Where the hell did the sun go?!"

N tilted his head. "Well… my sensors are kind of going crazy right now… so I have no idea!" He said happily, before pausing. "Oh wait, it's stabilized. Still no idea though."

V rolled her eyes. "The stars in the sky are different." She pointed out. "...That's very much not normal."

"Why does weird shit keep happening to us?!" Uzi cried out. "As if everything else these past few days wasn't enough! Now the sky freaks out?!"

"I'm sure there's an explanation, Uzi." N said placatingly. "No idea what it is, but there has to be one!"

"Uhuh." Uzi sighed. "C'mon, I just want like… a day of nothing weird happening…"

"It'll be fine!" N said with a grin. "We'll figure it out like we've figured out everything else! Isn't that right V?"

"Leave me out of this."

Unable to contain herself anymore, Uzi climbed on top of N's car, giving the sky her most vicious glare.

And screamed.

"I HATE IT HEEEEEEEEEEEEEEEEEEEEEEEEEERE!"

A.N.: And there we have it! Just a quick one to introduce the concept and what is happening in the broadest of terms; Things will be better explained as we move forward. I will happily answer any questions that people may have, though will try to avoid spoiling the story too much in doing so.

I will say however, the Imperium won't be able to just exterminatus the world, no matter how much they may wish they could, nor will the full might of the Imperium be deployed here. Just because one disgraced inquisitor thinks he's stumbled onto some Men of Iron, doesn't mean others will be so eager to believe him or to divert ressources to what is essentially the middle of nowhere in imperial terms.

Anyways, I hope you enjoyed, and I will see you next chapter!