Floating through space, a massive form unrivaled by the many meteorites that were attracted by it's gravitational force. It floated through a dimensional flux, this form, a space station of incredible size. And yet, those transcendental beings that observed knew it was not, by the definition of the typical fool, a ship at all. For it breathed, a living organism the size of a small planet, every cell within it biological in nature. It's mind, while not sentient in the same sense as a human being, was far more intelligent than any organism found in this universe, capable of complex calculations in the blink of an eye, a biological computer. It's 'skin' was a black carapace, filled with opening and closing 'pores' into which the meteors entered. Stellar dust spiraled into them, devoured in this creatures interstellar journey.
Deep within the heart of the being, past an infinite twisting labyrinth of veins and organs and passageways, at the brain that controlled it all, was a room. And in it sat a girl, smiling, as her hands moved through the translucent pool that contained the thought processes of the being. Hundreds of enzymes reacted, signals moving throughout the massive body at the speed of light. Senses far more developed than the eye moved into full alert, a loud groaning filling the body. Muscles twitched, reminding themselves of their original purpose, as heat filled it's dormant form. Ther very cells that made up the creature increased in activity, a reaction akin in power and efficiency to nuclear fusion powering the monster's core, an organism more complex than any other in the universe. It's race had no name, for it was not of a species. Unique, it had drifted for many years, growing, expanding. And now it was ready.
Below the creature was a world covered in life, easily excited and small. Their life spans measured in years, incomprehensibly small compared to how long this creature could potentially exist. Such tiny creatures, ants squabbling over a clump of mud and stone, in some ways they could be considered pathetic. However, it was not the creature that was calling the shots, as it's organs moved into action, billions of symbiotic beings moving about within it's body, taking care of it's biological functions. Pheromones and gasses were pumped through a variety of specially prepared chambers, as it prepared to comply with the orders of it's mistress, given to it within it's very brain. Obedience was engraved into every cell of it's massive body, disobedience was not an option.
The girl was master of the creature, and it was by her thoughts that it moved. It was her hand that guided it through the darkness of space, which had allowed it to grow. She had named it, the Genesis Devourer. And now it would act once more.
Like a meteorite, it flew through the atmosphere, it's carapace heavily resistant the friction that would otherwise have wiped it out.Black in form, wreathed in flames, it was quite a sight for those who occupied the planet. Hundreds of it's kinds, pods, descended from the beast that moved through space far above, too far for it's gravitational pull to have any significant effect. Already gasses leaked from it's inner compartments, as it crashed down into it's chosen area. With a minimum of thought, it released a massive cloud of yellow gas, filling the forest as the wildlife attempted to flee from the unknown predator. large claws extended and latched onto the surface, as tiny microscopic beings were launched into the Earth, exploring the soil of this world. It had no senses to detect it's environment, for it had no need of them. It needed not to see, or hear, or even to think, for that was not it's purpose. It's purpose was only to feed it's 'father', the Genesis Devourer.
The 'gas', a flood of uncountable microscopic creatures, spread out through the air. Originating from pods spread across this globe, they rapidly infected and filled every living and dead organism on the surface of the planet. Wherever the air reached, they reached, as they spread signals. Chemicals moved between them, echoed across the globe, a hive mind the size of which could only be fathomed by lesser lifeforms. Creatures were analyzed and judged, All information was sent to a single room, in the heart of the Genesis Devourer, the microbes replacing the fine senses of smaller creatures, able to completely and utterly analyze every being at once, from it's biological functions to it's thought patterns.
"Nothing but food."
As the order was made, the creatures were already broken down. Screaming, humanoids clawed at the ground, as their organs and limbs seemed to melt to nothing. Cells were broken apart into their base elements, reduced to nothing but that which would be the most healthy for the Genesis Devourer's growth. Experimental tissue to be used and thrown away, a test, and nothing more. An entire civilisation writhed in agony, as within the span of a few hours, it was wiped out. Minerals were extracted from the earth, water was funneled from the oceans, and all life was exterminated.
In the end, all that was left was glass towers, reaching up to the sky. An empty planet, remnants of a civilisation that could never have lived. For on this planet, where water did not exist, and only wasteful or harmful chemicals were present, no life could ever have existed. There was no trace, after all, that any creature had ever walked this planet's surface, that they had developed advanced technology and morals, that they had explored the very stars. All those things, after all, were reduced to nothing but food to feed a being that devoured not planets. It devoured the origin of life itself.
The dimensional gates shook, as the were breached. Space became meaningless, a gate opened by a being hosting a black hole within it's body. Impossible, and yet applied through the Genesis Devourer. Massive tentacles extended through these gates, pods launching themselves from the opening pores in the black carapace skin. Hundreds of planets were covered in the gas, as all life was judged within it. Judgement came from that girl, who dwelled at the heart of the beast, who had nurtured it to fruition. And with every world that was devoured, the beast grew, developed, and evolved, guided by the hands of that girl. Life ended, both divine and mortal, magical essenses absorbed into the mass, personal 'heavenly dimensions' breached, only to be absorbed. The anti-genesis, as all life was absorbed into one being. Even those worlds that held the souls of the dead were invaded, as the Genesis Devourer spread it's reach.