Author's Note: I cannot thank you wonderful readers enough for following these crossovers from beginning to end. It all started with a fun idea for a Batman and Ladybug crossover with "Miraculous Knight", and then it expanded into its own universe with many more DC heroes added to the mix and you've followed them all devotedly and given them many favourites. Hell, one of you guys even gave Miraculous Knight its own tropes page and recommended all the fanfics on TVTropes! That's an honour in and of itself! :D

Alas though, all good things come to an end and sadly, this crossover is going to be the last one. Nevertheless, me and my co-writer, Reece Wooldridge (who you can find on DeviantArt under the username PrimalPrince so please swing by and give him your thanks as without him, these crossovers wouldn't have been possible) will make sure to end this fanfic universe with a major bang. So please sit back and enjoy as we give you Ladybug and Cat Noir's final DC adventure as they go far beyond anywhere they've been before as they meet the intergalactic space police themselves...the Green Lanterns!

Prologue: Fearful Ruins

High in the world, cold in the air, one would think it would be easy to notice a new arrival in such a quiet place, but on this night, it was hard to notice anything, especially when a silent jet flew over the smaller populated areas of the country of Tibet, higher beyond where any communities lived. It was one of the most quiet places in the world, where anyone could disappear to.

Climbing up over the large wall of rock, the jet's back doors opened up as it slowed over a stretch of land. The land was surrounded by a towering rise of mountains, in slight blankets of snow, only the smallest of paths darted around the place.

The occupant exiting the jet was clad in a dark red leotard and a black under suit with silver armoured boots, gauntlets and a samurai styled helmet. It was none other than Kagami, who was gripping her sword tight in her hand, her eyes sharp as they usually were. Her chest heaved in and out slightly, as if readying herself in venturing out to the unknown. Like she was about to leave her comfort zone before diving into the dark stretch of loneliness. But it was something she needed to do. Something someone trusted her in doing. Someone who she could not let down.

Sucking in the air, she let go of the tension in her legs and sheathed her sword. Standing on her tip toes, she stretched her arms before leaning forward, losing the feel of the floor of the jet, feeling the rush of air run right through her before she found a new footing, the soft soil of the ground below, her feet holding her high, not staggering from the landing. She wasn't wearing such heavy armour compared to last time and she was keeping herself more straighter this time.

Her eyes closed from the intense blow of the jet as it took off. Kagami felt the relative ease she had slowly die off as she watched the jet fly off into the dark, leaving her all alone in the wild by herself. All the ease and sternness left her, her eyes lowering to the ground as she now knew the mission was on, just by herself. It was time to prove herself, for this was her first solo mission with no one. No spying, this time it was a full mission where she had to rely on memory and skill. She had to show her master she could do this...and show herself.

Sighing, the Japanese girl pulled open the pouch sitting on her waist and freed a map from its hold. She handled it carefully so as not to tear it. It was very old afterall, something she had to be really careful of. Opening it up, she found the detailed art that captured the look of the surrounding area she was in. She followed the red trails which led towards the upper right, leading right out in front of her towards a small path. Looking up, she saw a small dip in the land. She frowned before stepping forward.

"Centuries years old and it's still here. Pretty impressive." she said to herself, already keeping herself together with a hard talk.

Going on forward, she found the pathway that led to the lower part of the mountain she was on, seeing she was on the right way as she followed the map. She stopped and took a look around herself, seeing a long valley around her, towering all around her. Kagami couldn't help but gaze at the way it all glowed somehow, like she was around magic in some way. Magic of the world. The magic of quiet. The magic of the dark. If only she could live out here alone in such a place. Free from Vandal, free from Shiva. From the Light.

Sighing, she lowered herself, letting her body ease. Kagami felt she learnt so much but gotten nothing at the same time lately. She got to mix in with people, she got to see how people behaved in such a society. She saw love, energy and life. But even then she couldn't get it from where she was. Shiva was never impressed. Vandal saw her as an extension. Everyone just belittled her. Part of her wished she stayed in Paris to learn more, to see if the girl in blue hair also was someone to her. Someone she wanted to know...

Kagami then shook her head, pushing the thought of the sweet blue haired girl aside.

"Mustn't think of it. Just need to focus on the mission. He needs to get what he wants. Wherever it is in this place." she muttered as she continued her descent down the path, seeing the trail led to the bottom and towards a bridge of sorts. Lifting her head, she saw the blankets of snow weighed bigger around her, giving off a feel of awe at the sight of such a thing of nature.

She looked up to see there was indeed a bridge, leading off towards the dark wall opposite her. Looking down at the map, she saw the bridge led to a small building of some kind, a little farm of sorts from what the map showed. Kagami continued her walk, pulling out her sword as tension came over body, feeling she needed it just in case. Seeing it was getting dark, she gave the gem in her sword a little rub, before a soft glow of the colour shot over her path, giving her guidance over the bridge. Her red light only added the discomfort growing in her stomach for how it casted it's colour over the land around her, turning its quiet and beautiful look to something more creepy.

Kagami's trip on the bridge came to its end when she found herself on the other end, standing on a slightly smaller piece of land that rose to a hill like side. She beamed her light all out in front of her, and much to her frustration, she found nothing. No sign of a farm of sorts or anything that was detailed on the map. Only the empty stretch of land as far as her eyes could tell from where she was.

She sighed and turned her beam off, looking down at her feet.

"Might as well just call them back. Found nothing here." she said in frustration as she went to get her comm out of her belt sack. As she did so, however, something came over her. Literally.

While she turned to get her comm, it was then a golden light brightly shone from the dark, making her freeze. Frowning as she noticed her shadow being cast by the appearance of the light, Kagami turned around and nearly lost herself in her stare as she saw the light was beaming from a building. A building she hadn't noticed before.

Eyeing it, she could see the light was coming from the top window, it's glow extending far over the land. The building itself was like a fortress of sorts with its rectangular front that clearly connected back when it reached its ends, with a oval like door in the middle of the place. Kagami paused as she took this in before looking back down at the very item that led her here. She could only frown as she figured what this meant.

"If only he came here himself to see the changes. Gonna have to be polite if I'm gonna find this Magicium material he speaks of." she said, clearly not pleased Vandal didn't even think of coming to see this himself. Still, she had to be sure the material was still there, so she could please the guy.

She just failed to realise as she neared the building that the land around her was covered in giant webs, which wrapped its thick hold over the ground in a blanket of red, sealing it into a death like slumber of sorts.

The teen agent of the Light entered the building, keeping an eye out for anything that even so much as moved. Her training with Shiva had taught her to treat anything that moves as a threat and most be seen to at once, even if it was something as small as a mouse moving in the corner of her eye. So far, nothing happened. It was just her walking through the monastery with no one around. Kagami couldn't help but feel uneasy. Sometimes being alone was just as unnerving as having people watching you. You never knew when something was going to happen when you were alone and if anything did happen, you had no one to rely on for backup. Kagami could only hope that she wouldn't need anyone should danger arise.

The blue-haired girl swept her eyes over the monastery as she walked through. The place looked abandoned with slime on the walls, decayed brickwork and broken bits of ceiling that had crumbled away due to age and fatigue. Whatever this place was, it certainly needed a good, long clean up! Why is it that abandoned places like this always looked really creepy?

"I wonder if this place ever looked good when it was built, abandoned or not." Kagami muttered.

As she was about to press on, she heard, or at least thought she heard, a brief noise of some sort. It was a quiet, whooshing sound as if someone had quickly moved to avoid being seen. Kagami drew her sword out and pointed ahead in the direction of where the noise had supposedly come from. There was nothing there. It wasn't exactly easy to see in the dark so she couldn't be certain if anyone was here or not. Kagami kept herself rigid, poised to attack in case anyone tried to ambush her. A few minutes passed and nothing else moved or made a sound. The only noise in the monastery was Kagami's breathing. The teen girl sighed and sheathed her weapon.

"Great, I'm already imagining things." she sighed, "I thought Lady Shiva would've beaten that crap outta me with her training..."

But Kagami very quickly realized that it was not her imagination. Somebody moved up behind her and seized her from behind, clasping her a hand over her mouth and wrapping the other hand around her torso. The Japanese girl cried out behind her captor's hand, squirming in its grasp. She had no idea what had grabbed her but all she did know was that this person was deathly cold. The hand over her mouth was freezing as if this person had never experienced the warmth in its life. The other hand made her cringe in disgust as it slowly slid down her stomach, purposefully fondling her and getting a good feel.

"A girl...and so young and beautiful too..." a voice whispered behind her, "We haven't had one of these in a while...Mistress will enjoy you my dear..."

The voice was hoarse as if the captor was on the verge of losing it altogether. Kagami also noticed it was clearly a man's voice, or whatever could come off as a man. She was sure it wasn't human, whoever it was. She quickly drew her sword out and stabbed at the person behind her. Her sword sank into soft flesh and the man howled in agony. Kagami drew the sword out again and wrestled out of his grip. Then she spun around and swiftly decapitated the man with one swing of her sword. His head bounced away along the floor and the body, still oozing with blood from the wound she'd given it, collapsed shortly after. Kagami could see that the man looked like a monk of some kind, complete with tradition robes and haircut, but there was something different about this monk. The robes had strange markings she'd never seen before and the head even had markings on the face. The markings were all red in colour. Were they the symbols of whatever deranged cult this monk worked for? And who was this "Mistress" he'd mentioned?

"Savage could've warned me this place had crazy monks in it..." Kagami muttered, glaring at the headless body, "And if I've been sticking to my training as well as I think I have, I'd probably say that wasn't the only one. As Shiva said, there's never JUST one in places like this..."

She knew very well this was the case, for her ears picked up the soft thuds of footsteps coming at from behind. Except it wasn't coming right behind her so to say. It was from above, for the cold, foul breath reached down to her like a lump of slime reaching down her neck. The girl gripped her sword tightly as she heard its feet shift. The rush of the foulness above her alerted her of its incoming jump, so she leapt aside and avoided getting piled down by the figure, who she turned to see was hooded in familiar robes. But this figure was different from the monk she just killed. His eyes were glowing...several glowing eyes actually, red in all its hideousness, and he looked like he was rising from under the robes, like he had more legs than the usual number.

Kagami broke out of her frozen moment and bit her teeth down, running at the creature right on and shoved her sword right into his stomach, a splirt of blood shooting out from his back, which crunched and twisted like rock bring crushed under a machine, leaving Kagami cringing as she heard its inhuman like cry, it's screaming like a buzz saw that had gone old. She pulled her sword back and slashed it right onto the head of the creature, watching it split into two pieces and roll right onto the opposite sides of its body, which slumped lifelessly to its back.

Kagami leapt back as its legs spread out, seeing there was indeed more than just the usual number of legs...plus they weren't even human. Her blood froze as she saw they were insect like, with how thin and sticky they were. Now her adrenaline was really rushing, even more so when she saw a piece of the head she sliced off didn't even look human at all. Instead it was half of the the round head of a spider, it's lifeless eyes gazing at her as if it still wanted to eat her whole.

Kagami bit her teeth down as she heard more circling legs of the creatures circling around her in the dark, glaring at them all as their eyes glowed in the dark.

"Great! Shapeshifting spiders! Spiders that can talk and want to feed me into the mouth of their Queen, as usual with cannibals!" she said to herself as her sword's gem activated, a whirling of mechanical gears inside as she lowered her sword. She gave them a sharp look as she saw several beginning to circle her, all of them removing their robes to reveal they wore samurai styled armour, two sets of arms coming out of their sides while another set of legs stretched from their bottom half.

"She can feast on your bodies instead of mine!" Kagami snarled as she shot her sword out, its dagger trail like mode activated.

She threw it around in a circular motion easily slicing down the first wave of the creatures as they came at her, their blood slashing everywhere as their bodies collapsed into chunks of blood and crunched lumps. Kagami pulled her sword back and slid underneath an incoming spider monster, stopping right behind it in time to slice it up in half from its groin to its head, hearing it scream in agony as it collapsed in half. Another came at her, this one brandishing pair of swords in each hand. She blocked the first two that came down on her with her sword, before grabbing the wrists of his other pair of arms and pulled them down before driving her knee into its crotch. She watched as one of its eyes nearly fell out, his howls filled with more agony as it collapsed. Kagami raised her sword to its neck as it screamed in its pain.

"Shouldn't even hurt you. You lack the vitals that provide any feeling down there." she said bluntly as she sliced its head off, glad to hear its screaming stop.

It was then she noticed the rest began to back off, all of them climbing up the walls to avoid getting killed by the young girl, who stood where she was, glaring at them all as she readied for them to jump on her. Yet they all just sat there, hissing as they looked down at her, all of them hungry as they watched her. Kagami tensed up, realising they were up to something else...

She found out when a web wrapped itself around her ankle, making her cry out in alarm as it began to lift her up. The web was red and thick, but it wasn't enough to hold her for Kagami slashed it down and began to drop to the floor, only for another to catch hold of her from behind and began to drag her towards it. Kagami spun herself around and planted her sword into the spider creature's chest, killing it right away and letting the web around her go. She hissed as she felt the cold hand of another grab her arm, so she swiftly sliced its hand off and drove her sword into its forehead, before jumping back to the floor below, bringing their bodies down with her.

Snarling, Kagami glared at them all as they held off from going after her. She heard her sword's whirling mechanics go again, so she was ready to slice them all down. She was going to kill every last one of these creatures, she was not going to be their meal, so she would crush them to pieces like the little bugs they were.

But when she tried to swing her sword out, she found her arm had come to a stop, for it felt a tight web wrap itself around her. Kagami gasped and went to use her left hand to get the sword, but that as well found itself held back by a web, which was red and thick like the others. Trying not to scream, she raised her legs to try and kick them hard to loosen their hold, but just like her arms, her legs were held by the webs, which pulled her legs down to straighten them up. Kagami growled and tried to pull at the webs to loosen them, but they were strong, strong enough to keep her in place.

Her breathing increased as she noticed how the creatures just sat there, watching her. She could only wonder if the group were about to drain of her blood, each one deciding who to go first. But not one of them chose to move. They just watched her, leaving her even more nervous as she wondered what they found so fascinating...

Until she saw the slight red glow coming out of the staircase doorway nearby, rising with its user, who remained quiet as it came into view, leaving Kagami frozen in fear as she saw the creature.

The creature was feminine, its curvy body well developed despite having three sets of legs below her. Her breasts were well pronounced, covered slightly by the leotard styled clothing she wore, and her bare pink like arms were well toned, but the look of a spider was still there as her fingers stretched into claws. Her face was thin, little fangs poking out of her lips as she smiled, charm and beauty held in it, while her four glowing red eyes let their light go down, revealing her tied back red hair. The red eyes of hers looked right into Kagami's as she neared her, the girl staring right into them as pure fear came over her, the cold breath of the woman in front of her grazed over her face. The smile never left her as she trailed her finger under Kagami's chin, watching as she gulped hard while her lips trembled, the coldness of her finger running right over her whole body.

"Yes. Very young. Very strong. Clearly has intelligence in her. Hardness in her actions. All a good mix to watch crumble, like everyone else. Funny how so many people come across like this, presenting themselves as strong, cocky and smart, but really are just scared, terrified little weaklings who need to be controlled, just as you all were since you were built. Still, you have no need to worry, little fighter." she said softly, her voice just above a whisper as she smoothed her finger over Kagami's lips, watching as her eyes widened.

"You are in the house of Abyss. My house. My Ziszhui shall make you very comfy. All you need to do is go to sleep, my dear." she said as she pulled her hand back, red liquid swirling in her palm that began to build up like a structure of sorts. It was the last thing Kagami saw before Abyss shot the structure into her chest, before darkness came over her eyes as did a chill run through her whole body, which went stiff as she slumped back, feeling nothing but the cold as she went into her sleep...

The universe was home to many, many things that some would consider to be...fantastical in nature. None could be considered quite so fantastical as the largest member of the galaxy's Green Lantern Corps.

A lone figure clad in entirely in white was taking a moment to just chill and take in the beautiful scenery around him, a rare moment of peace that he intended to make the most out of. If there was any place in the galaxy to relax, it had to be here on this planet. But this planet was no ordinary planet. This planet...was a sentient being. Known as "Mogo", the living planet was a member of the Green Lantern Corps and as a sentient being, he was able to alter the weather, make plants grow, manipulate gravity and of course, display the usual powers of the Green Lanterns. Mogo had been found once by fellow Green Lantern Hal Jordan and had been saved from an incoming asteroid when Hal had given him a Green Lantern ring. Mogo had been a valuable member of the corps ever since, though his gargantuan size made it hard for him to socialize with others as his gravitational field would cause havoc if he tried to visit any worlds. Instead, most Green Lanterns would visit Mogo to give him company or use him as a temporary base if necessary.

The Green Lanterns were an intergalactic police force that visited planet after planet to maintain law and order in the universe and their incredible powers were all down to the power rings they would wield and the imagination they needed to use them. There were many variants of power rings, not just green, with each colour that represented a different emotion. The Green Lanterns were powers by willpower. Only the bravest, most endurable and hardy of people could be blessed with the power of the Green Lantern rings and the corps had many members. One of them was on Mogo right now, although calling him a "Green Lantern" was hardly accurate as he was no longer a Green Lantern. He had long since become a White Lantern, a Lantern corps that represented life itself as a sharp contrast to the Black Lanterns who represented death. As a White Lantern, this man was easily the most powerful Lantern roaming the universe. And yet outside of that white costume and his power ring, he was just another ordinary human being who had been gifted with such power. His name was Kyle Rayner and he had come a long way since his first time becoming a Green Lantern.

As he enjoyed his rare moment of peace and quiet, Kyle though back to his life and how it had led to this moment. He had just been an ordinary man with an ordinary life along with a huge desire to become an artist. He loved to sculpt and draw and it had been his dream to make a living off of his work. What a sight it would be to see his masterpieces on display somewhere! But instead his artistic mind had been put towards saving lives and fighting villains after a Green Lantern ring had come to him one day, monologued about him displaying great willpower and welcomed him to the Corps. It had been a surreal experience at first but Kyle had grown to love his life as a Green Lantern. He got to use his art skills to create fantastic constructs that had helped the Corps in subduing many threats and had seen many incredible, wonderful things throughout the universe. Of course, it hadn't all been great and he'd gone through a lot of hell in his time but these things came with the job after all and despite everything, Kyle had still lived to fight another day.

And yet his life had grown even more amazing when he'd become a White Lantern to help face off the Blackest Night event that had threatened the universe! He still remembered vividly to this day when his green costume had turned white and his power had grown beyond anything he'd ever wielded before. Facing off the Black Lanterns, defeating their leader Black Hand and bringing light back to the universe had been his proudest moment ever. So many lives saved, the universe still teeming with life and wonder and all because of him! Kyle had to imagine that he was probably the biggest hero that had ever lived, though he didn't think of himself as such as he was a rather humble man and didn't like to think of himself as above anyone else. To him, all heroes were equal and their achievements were not a contest.

It seemed the universe would need the power of the White Lanterns again for Kyle suddenly flinched as if something had touched him. He was lost in his thoughts for a moment as something came over him. It was a sort of sixth sense, the kind that told him danger was afoot. But it wasn't anything on Mogo, he was completely fine. It felt...distant, like it was a billion light years away. It was coming from somewhere in the galaxy and he had a nasty feeling he knew where. It seemed Mogo could sense it as well for a powerful voice echoed through the sky.

"Kyle Rayner. You sense it as well, don't you?" the sentient planet boomed.

"You know it big guy..." Kyle muttered, "It's a surge of some kind. It feels like...fear. But it doesn't feel like the Sinestro Corps somehow. This is different."

"I agree. The Sinestro Corps are not responsible for this surge." Mogo boomed, "I am not sure what this surge is, but I can locate where it is coming from. It seems to be emitting from Sector 2814...your home planet."

"I thought that the moment I felt it." Kyle concurred, "It's ALWAYS Earth where the crazy stuff happens. What could be causing this surge of fear on Earth if it ain't Sinestro and his goons again?"

"I have no answer to give. But I do know what has to be done Kyle Rayner." Mogo murmured, his voice echoing everywhere as his voice was literally everywhere with him being the planet itself, "You must investigate what is happening on Earth. You must eliminate this threat before it becomes of grievous concern. I fear this rising threat could threaten more than just Earth...it could threaten the galaxy as a whole."

"You know something's bad when even a sentient planet is nervous." the White Lantern commented, his voice lacking his usual humour despite the wisecrack he'd made, "I'll go straight away Mogo. Besides, it's been a while since I've been home anyway. It'll be good to be back...provided this threat doesn't destroy everything."

"Indeed so, Kyle Rayner. But do not let fear consume you for when you encounter this menace. For you are the White Lantern, the Lantern of life itself, and you are the Master of these many emotions, young man. But if it needs be, do not feel bitter at requesting the help of others." Mogo responded, his voice booming despite the great wisdom it held.

Kyle folded his arms and smirked down at the planet.

"As if there's anything silly about asking help. Even a kid can be helpful in the darkest of days. You hang tight, big guy, if you want anyone to have a conversation with, give Hal a call." he told him as he turned to levitate higher into the atmosphere, giving him a grin as he began to gain speed.

"Go then, Kyle Rayner. Protect the Life Entity, and protect the universe with the Light of Life." Mogo gave a final farewell as he watched on to see Kyle disappearing into the dark of space.

For Kyle, Mogo's voice became faint as he saw the dark turn to light as his speed increased, his mind thoughtful of Earth as he processed it in his head over what this could mean. He didn't get it, but something told him this trip to home would be worth it. He could feel it in his soul and he was getting excited about it. But he knew that there was a fight that needed to end, it called to him, so he'd go in to end it. If he needed help, he'd get it.

So his journey began, from Mogo to Earth, lost in the endless stretch of light, his light, the guide to where he needed to go. Yet as he continued on, he couldn't help but wonder if this whole sense he could pick up was something the Life Entity was calling out to him over. It was the source of his power and the creature Earth had sealed up inside. He didn't think of going into the core to see it, he knew he'd find out when he'd get there. But he knew this was something that needed to get done.

Talk about starting off big! Kagami's been captured and the White Lantern himself is answering a call to action. What will happen to Kagami now she's in Abyss's claws? Who even IS Abyss? Is she connected to the rising threat Kyle senses? How will Kyle stop this threat and how will Ladybug and Cat Noir get involved in this?

Tune in next time for more superhero action in this crossover epic!