AN: Hello all my name if Greed720 and this is my first story for this kind of crossover. I decided to do a crossover between RWBY and Percy Jackson. This is mainly because I think such a crossover would be interesting, and also because there is a lack of such crossovers at the moment.

This story will feature an AU Percy. His history will follow canon up until the book the House of Hades, and then things will be different. These changes will be shown as the story progresses. Other than that I hope you all give this a chance and enjoy it.

I would really appreciate any feedback people would be willing to give me, as I find reviews are very useful when it comes to improving upon both your writing and your story.

Last edited: 03/11/2020

Disclaimer: I do not own RWBY or Percy Jackson.

( - )

Chapter 1

( - )

(With Percy)

When Percy finally came to, the first thing he saw as he opened his eyes and pushed his aching body up into a sitting position, was a thick canopy of trees. Through which he could just about see the bright beams of silvery moonlight shining down upon him.

"What in Hades…" Percy groaned to himself as he tried to push himself to his feet. Only for him to fail halfway, as he instead collapsed back to the ground. His hands giving away beneath him as a sudden wave of tiredness and nausea hit him all of sudden.

Letting out a grunt of irritation, Percy gritted his teeth and used both of his aching, shaking arms to push himself up, successfully this time.

Everything ached, from his arms and legs to his back and head. It felt like he had just been standing at the epicentre of an erupting volcano, and then was propelled halfway around the world by the ensuing blast.

Some people may think that that is a bit of a weird analogy. But the sad thing is, Percy had been through such an experience before. As such he knew the bone weary ache well enough to make the comparison.

Slowly rising to his feet, Percy shook his head trying to get rid of the dull throbbing ache that had settled there.

Closing his eyes he began to draw on the moisture in the air. It was hard going, but after a minute or so of effort he had managed to draw enough to him to surround his body in a thin film of water.

For most people such an act would look impossible. But he was not most people, he was Perseus Jackson, a demigod, the son of Poseidon and the Hero of Olympus. For him this level of hydrokinesis was as easy as breathing.

Keeping his eyes closed, Percy began to take slow, and deep breaths. Focusing intently as he kept drawing on the moisture in the air, until eventually he started drawing more out of some of the nearby trees and out of the ground itself as he kept himself in a condensed cloak of constantly shifting water.

To the outside observer he must have looked bizarre, like he had a second layer of skin made out of shimmering water.

Not that he cared what he looked like, as instead he simply focussed on the feeling of his latent demigod abilities activating and going to work. The cloak of water rapidly healing him of all his aches and pains. With it also clearing his head, enhancing his senses and physical abilities, and giving him greater clarity as it did so.

This latent ability was one of the best things about being a son of Poseidon. All he needed was a bit of water and he could heal himself of all but the worst wounds, and immediately reinvigorate himself, and enhance his body.

Keeping his eyes closed, he directed the water to swirl over his entire body. Some of it sank into his skin hydrating him and revitalising his organs. It was a good feeling, a fresh feeling.

With a final deep breath, Percy opened his eyes and allowed his control over the water to drop. Which in turn caused the cloak of water to collapse to the loamy, leaf covered ground beneath him and soak into the forest floor.

He didn't want to keep drawing on his power if he didn't need to, after all he was not sure whether this was hostile territory or not.

From prior experience, he knew it would be best to conserve his energy as much as possible, until he had a better idea of just where in Hades he was, and what in Tartarus had happened to land him in this unfamiliar forest.

Blinking his sea green eyes, Percy frowned and began to look around and take stock of his surroundings. Now that he had regained some semblance of his strength, he needed to work out what was going on.

Looking around, the first thing he noted was that he was in a forest. A healthy verdant green forest that wouldn't look out of place in Maine.

This for one, made Percy suspicious, after all the last thing he remembered he was leading the charge against Gaia, the Primordial Goddess of the Earth, and that had been in Southern Greece. A distinctly hot and arid country, and not a place which, as far as he knew, would have a forest like this in it. Which by process of elimination, led Percy to thinking he was not in Greece anymore….

Frowning at this Percy then began to take stock of his current state too.

He was a little tired but had sustained no real injuries. Or at least little more than a few cuts and bruises, all of which had now been healed. As for his equipment and entire. He was wearing a pair of scuffed and dirty brown, leather boots, slightly worn out looking black jeans, with Celestial Bronze plate armour strapped around his thighs and calves. All of which, while looking battered, was still very much serviceable.

On his top half he wore a dirty, sweat soaked Camp Half blood T-shirt, over the top of which he had a finely wrought Celestial Bronze cuirass, forged by the Cyclops' of Atlantis and engraved with the many feats he had achieved during his demigod career. There were a number of scratches, and even a rent or to from where a blade had pierced, but it was for the most part still functional.

On both arms he had just as finely made Celestial Bronze gauntlets, both of which had engravings of a trident on the forearms, a nod of respect to Percy's father Poseidon. The left gauntlet also had a clockwork watch face embedded into it. This, he knew, was a useful addition which not only told the time, but when twisted it, it turned into a full sized, round Celestial Bronze shield. Which like the gauntlets had the trident of Poseidon decorating it. Apart from the usual signs of wear and tear his gauntlets were perfectly fine.

Both of his shoulders meanwhile, were also protected by heavy pauldrons which were partially attached to the cuirass. Both of which were shaped to look like the heads of snarling Hellhounds. It was an aesthetic decision that he had not quite agreed with. Unfortunately his brother, Tyson, had overruled him as he thought the 'angry doggies' looked 'cool'.

Smiling to himself slightly at the memory of his younger half brother and his enthusiasm when it had come to crafting him his battle armour, Percy, now feeling a bit better, continued to give his gear a once over.

At a first glance his equipment was all in good nick, apart from a few small battle scars and rents, it was pretty serviceable.

Which considering the length and ferocity of the battles he had taken part in during the fight against Gaia and her forces, was a testament to both his skill and the craftsmanship that had gone into forging his armour.

Especially since those forces consisted of not just hordes of monsters, but Gaia's children too, the Giants and the Titans, some of the most dangerous, powerful and deadly beings that came out of Tartarus, the Eternal Pit.

Smiling to himself at this stroke of good fortune, Percy then checked his weapons.

His hand was already in the pocket of his jeans, as he grabbed the pen shaped object inside. At a first glance this pen looked like just a fancy ballpoint pen. But if one were to take the lid off, then they would see the pen extend to become a leaf shaped, Celestial Bronze sword. Anaklumous, a blade that had almost become legendary since it had come into his hands.

Smiling to himself, Percy pulled out Anaklumous and extended it to its true form.

Just the feeling of the familiar blade in his hand was enough to fill Percy with confidence. The blade was perfect for him, it had the perfect length, weight and grip.

It felt like an extension of his arm, and with it, Percy had slain Titans, Giants and eldritch monsters than had long haunted the nightmares of mankind.

Glancing around his leafy surroundings once more, Percy began to take a few steps forward. His eyes narrowed as he kept his guard up and his blade held at the ready.

The last thing Percy remembered, before waking up here, was leading the armies of the Greek and Roman demigods in a final charge against the forces of Gaia.

They had charged the enemy forces in a wedge formation, with Percy acting as the tip, with both Frank and Jason at his side.

From there all he remembered was; the clash of blades, the screaming of monsters and men, the feeling of bringing death and destruction down upon the heads of his enemies. Then a final, loud ear splitting shriek, as the earth itself began to shake and then nothing but darkness, and a loud, almost familiar, laughing.

The next thing he remembered after that was waking up alone, here, wherever here was.

What happened after that… well he wouldn't know until he found some kind of civilization. After he did that, then maybe he could start to go about trying to get into contact with someone who might be able to help him, or at least answer some of the many questions he had brewing in his head.

Fortunately, Percy was soon knocked out of these depressing, downward spiraling thoughts, by a sudden nearby sound beastly growl, that seemed to be coming from some nearby bushes.

Narrowing his eyes at the sound, Percy quickly shifted his stance, his mind already racing.

He was not just going to run in head first and start killing, not until he knew what he was up against and how many there were. The last thing he needed was to find himself surrounded by a pack of strong monsters. It was a sure fire way to get himself gutted.

Instead, he knew he needed to adopt a more wary approach. One of the good things about the extended war against Gaia, was that it had taught him patience and tactic.

Drawing on his control over water, he began to extend his senses, using the moisture in the air to sense movement and vibrations of everything around him. He could feel his senses rapidly expanding through the air for tens of feet in all directions.

Gripping his blade tighter, Percy lowered himself down into a fighting stance.

Already he could sense close to a dozen large creatures within a fifty feet of him, the extent of his senses.

But that was just to begin with, because even as he processed the numbers currently arrayed against him, he could sense even more entering his field.

They were gathering almost like a back of wolves, or a swarm of monsters. Hanging back for now as they likely prepared some kind of ambush. That or they were waiting for some of their fellows to cut off his retreat so they could surround him.

The creatures he sensed were large, bigger than a full-grown man, and from what he could feel through the soft earth beneath him, heavier too.

Initially he had thought that they might be Hellhounds. Some of them were certainly the right size and shape for it. But at the same time they felt different.

Honestly, he wasn't sure what they were.

What he did know though, was that they were hostile.

In the end, Percy knew that there was no point in speculating what they were. After all soon enough his curiosity would be assuaged, as he could already feel the sources of the growling beginning to approach him. He could hear their snarls rising in volume as they prowled forwards and the twigs and branches snapping under their clawed feet and the surrounding bushes rustling, as they passed by.

Drawing on the damp loam beneath him, and the nearby plantlife, Percy once more covered his body in a cloak of water. Carefully he changed his grip on his sword as he knocked the clock face on his left gauntlet, and caused the shield to expand outward. The flat of his blade then coming to rest on the rim of the shield, as he looked out over it at the oncoming pack of monsters.

Narrowing his eyes as they approached, the dappled moonlight that came through the overhead canopy quickly revealed the monstrous forms of his would be attackers.

At a first glance they looked similar to Hellhounds. But that was only at a first glance.

A closer look quickly revealed that these creatures were far more humanoid and anthropomorphic than Hellhounds. With the monsters having pale, white bony spikes protruding from their backs and arms and odd twisting red markings across their black furred hides.

Most noticeably, they were all also wearing white bone-like masks on their bestial faces. Their red glowing eyes shining through the sockets of their masks holding nothing but malice, hatred, and hunger as they locked on him.

Yeah, Percy thought, this beastie was similar to a Hellhound, but it was not one. He had killed enough of those monsters to know that much.

This creature, it was something else.

Narrowing his eyes, Percy tensed as he heard the first beast howl, even as it pounced towards him. Its jaws open in a snarl and its claws extended and ready to rend and tear his flesh.

Percy didn't pause for a second as instead he took a single step forward, Anaklumous moving in a bronze blur as he brought it up and round in a single strike. The bronze blade bisecting the creature, causing the two halves of its now severed body to land on the forest floor behind Percy with a sickening crunch.

Glancing sideways, Percy couldn't help but blink in surprise as he saw the severed remains of the creature begin to disintegrate into wispy black vapour moments later. The creature's remains disappearing was not what surprised Percy though, monsters often disintegrated after they were slain, as it signified their immortal souls being cast down into Tartarus where they would begin to slowly reform. What did surprise him though, was that monsters usually broke apart to become golden dust when slain, they didn't turn into wispy black mist.

It was an inconsistency that made him uncomfortable.

Still, he thought, tearing his mind away from this oddity, for now he had bigger things to think about. As from within the woods he could hear twigs breaking and leaves rustling, followed by more howls and growls as the rest of this creature's pack charged in moments after their fellow had been slain.

They were acting more like mindless beasts than intelligent monsters as they swarmed the lone demigod.

Repositioning his blade, Percy didn't waste a second as, when the next creature burst out of the undergrowth, he swung his blade and beheaded it. The creature's remains tumbling past him, as he followed this up with a brutal shield bash to the head of another beast, and then a back handed swing which struck the skull of another of the beasts, sending it crashing to the floor at Percy's feet.

Stamping his foot down on the wounded creature, crushing it's skull, Percy retracted his shield at the same time as he swung his left hand round, creating a scythe like blade of water, as he then slashed a fourth creature in half, and then a fifth beast. Before he twisted and stabbed his blade through the beast he had previously knocked away with his shield.

Once again ignoring the disintegrating forms of the creatures, Percy once again took a ready stance as half a dozen more beasts exploded out of the foliage, a dozen more then quickly following after them as they all rushed at him at the same time.

Well…' Percy thought tiredly as he watched the beasts charge him, their eyes burning red with hate, and their maws open revealing sharp, dagger like teeth. 'It looks like it's going to be one of those days?'

Hefting his sword, Percy let out a single loan battle cry before he threw himself forward, his blade already singing through the air to cleave down one of his foes, even as a second sword, a blade made entirely out of highly condensed ice, appeared in his other hand as he struck down another creature that got in his way.

( - )

(At Beacon Academy)

In a large oval shaped office, an older looking man in his mid-forties took a sip from a cup of coffee as he looked over the list of students for the upcoming year at Beacon Academy.

The man had unkempt, tousled grey hair, oval glasses and was dressed in a dark green suit. Leaning casually at the man's side was a black cane, one which had an intricate, ornate silver handle.

This man was known as Professor Ozpin, the current Headmaster of Beacon Academy, a school that was known throughout the world, for producing some of the best hunters and huntresses in Remnant. With the man in question, currently musing over the applications he had received for Beacon Academy this year. Applications that had come in from the many training schools in the kingdom of Vale, like Signal, and from those who had passed Beacon's grueling independent combat tests.

Earlier in the day, he had been agonizing over how he had an uneven number of first years this year. Which considering how those who were accepted were expected to find a partner and be part of a four person team, made things understandably tricky. After all this meant one of the teams would only be three person strong, which was unacceptable.

The huntsman teams were supposed to be four, no more and no less. this was not because it was tradition, but it also because four had proven to be the perfect number for both learning and for small, rapid fire Grimm extermination operations.

Now, he had previously found an additional applicant that had the potential to become a hunter. The only issue however, was that the transcripts he had sent to Beacon were patently false.

The application belonged to a boy called Jaune Arc… The boy, Ozpin knew, came from a prestigious family known for producing skilled hunters and huntresses. He certainly had the pedigree.

Despite this though, the boy had not taken a combat test, nor had he been to any of the preparatory schools like Signal. Instead he had tried to cheat his way into Beacon through fake transcripts.

Honestly, he could have quite easily cut the young Arc out. Like many of the others that hadn't made it through to this stage, he didn't have the skills. In fact he would likely have already been cut, were it not for the transcripts fooling the computer algorithm that filtered the unworthy applicants out based on their scores, skills, and several other criteria.

But then, if he were to cut the young Arc, he would then have to cut a further two students as there wouldn't be enough for a team. Which he really didn't want to have to do as the rest of the students on his list had proven themselves to be both ready and qualified for Beacon.

Fortunately though, due to events that had happened earlier this evening, an attempted robbery of a Dust shop, a robbery that was stopped by a Signal student who put her life on the line to do what she thought was right, he was no longer in such a predicament.

With the young Miss Ruby Rose now invited to Beacon the numbers now made up to eight even teams of four. That being said though, he was still on the fence about allowing Mr Arc to continue on to Beacon, as he had lied and cheated. However at the same time with his pedigree the boy could have the potential to become a decent hunter.

It was a difficult decision for him to make, one that he had been stewing over for a few hours now.

Blinking out of his reverie as a knock rang on the door to his office, he quickly dropped the student list on his desk and looked up in surprise. It wasn't often that he got unexpected visitors, especially so late at night.

"Come in." Ozpin called out, taking a sip of coffee as he put his paperwork down for now and instead settled himself more comfortably in his chair, his gaze fixed on the door.

Upon hearing his call, a tall blonde woman, with piercing green eyes and a statuesque figure, stiffly entered the room.

This was Glynda, Glynda Goodwitch, the Deputy Headmistress of Beacon and a long time friend and confidant of Ozpin's. And it was because of their connection, that he was able to notice the urgency with which she walked, and the seriousness of the expression on her usually strict and uncompromising face.

"Ah, Glynda, what seems to be the problem?" Ozpin asked easily, getting right down to the point as he knew just from a glance that she was in no mood for small talk or dillydallying.

"There is an issue in the Emerald Forest. The Grimm seem to be more riled up and aggressive than normal. When I saw this, I checked the camera network set up in the forest and well…." Glynda began as she stalked across the room, her scroll, a portable tablet like computer, in hand as she tapped a few buttons on the touch screen. Her actions, causing a large screen on the side of the office's wall to light up as it began transmitting the camera feed Glynda currently had running on her scroll.

Ozpin blinked in surprise at this action, carefully adjusting his glasses as he looked to see what had Glynda so serious.

Upon looking, he once again blinked in surprise. The cameras currently showed a young man, who looked to be in his late teens. With the youth in question wearing some kind of bronze colour armour, and wielding a simple bronze coloured sword too.

Despite the simplicity of his weapon and the archaic nature of his armour though, he was still noticeably cutting a bloody swathe through a large pack of Beowolves.

In fact even as he watched, he saw the boy decapitate one Beowolf with a swing of his sword before he shoulder charged another. With this giving him enough time to sweep his sword around and bisect a third before lunging forward again, his sword a bronze blur as it impaled the second.

Three large Beowolves dead in less than five seconds, it was remarkable.

The boy's strikes were swift, accurate and economical. There was no wasted movement. Every strike he delivered was meant to kill, maim or disable.

Even as Ozpin watched, the boy scythed through another five Beowolves. With him not stopping for a second as he continued on, leaving behind a trail of close to twenty dead Beowloves to disintegrate.

Now Beowloves were not the strongest of Grimm, they were deadly to an untrained civilian, but to a hunter, even a first year, they were easy prey to kill.

That being said the boy was fighting an entire pack, something that could overwhelm even a fully trained hunter, and yet he did not seem at all perturbed as he bulldozed through them.

Ozpin raised an eyebrow.

The boy was clearly highly skilled, but judging by his age and the fact Ozpin didn't recognize him, it was a safe bet that he was not a qualified hunter. Which of course begged the question of what he was doing in the Emerald Forest alone, and how he had gotten there in the first place?

Looking closely, Ozpin could see the boy looked uninjured. But despite this, he could also see that the teen was beginning to show definite signs of fatigue.

His blows were still deadly and precise but they were beginning to slow, as with every Grimm he killed two more seemed to appear.

The fight looked to be turning into a battle of attrition, which against the hordes of Grimm, was not a fight any normal person could hope to win.

It was for this reason that huntersmen often fought in teams, as no matter how skilled a huntsman was, they were still mortal, they still tired and they could still get overwhelmed by sheer numbers.

Especially when the bigger and more powerful Grimm got involved, which seemed to be the case here. Looking at the feed he could already see Ursai, bearlike Grimm, beginning to appear from out of the forest as they joined the pack of Beowolves in surrounding, corralling and wearing down their foe.

Watching as the armoured teen sliced off an Ursai's leg, before lashing out with his blade and ramming the four foot blade through another Ursai's skull, even as he used a shield that suddenly emerged out of his other gauntlet to fend of a leaping Beowulf, Ozpin decided he had seen enough.

"Glynda go pick the boy up. Get him out of there before he gets overwhelmed, and bring him here. Take a Bullhead." Ozpin said quickly as he clasped his hands together in front of him, his eyes still focusing on the camera feed playing out in front of him as he did so.

Glynda nodded curtly at that, moving the moment she got Ozpin's permission and striding out of the office, her hands already in motion as she used her scroll to call for a Bullhead to be prepared for her use.

Watching the woman leave for a moment, Ozpin hummed to himself thoughtfully, before he looked back to the screen as the ongoing fight continued to play out.

Nodding his head, Ozpin then looked down at the roster for the upcoming first years at Beacon Academy, a new thought coming to mind.

( - )

(With Percy in the Emerald Forest)

Percy let out a grunt of irritation as he cut through yet another one of the creatures.

These things seemed to be never-ending. For every one he cut down, another two seemed to take their place.

More than that though it appeared as though tougher versions of these creatures were now appearing. No longer were there just the wolf-like creatures attacking him. Instead there were now hulking bearlike creatures beginning to engage him too.

With these new creatures being colossal masses of black fur and muscle. On top of which, like the smaller ones, the bearlike creatures also had large bone-like masks and white spines sticking out of their backs and shoulders. Also like the other ones when slain the creatures seemed to slowly break apart into black mist too.

Unlike the first creatures though, these ones were noticeably stronger, more durable and more ferocious, which when added to their foot long, razor sharp claws, make them quite a pain to deal with.

Gripping the hilt of his blade tightly, Percy took a step back. His intense green eyes narrowed as he saw the creatures beginning to swarm him once again.

They were coming from in front of him, behind him and from the sides, and if that were not bad enough he was still within the dense forest meaning that with night drawing in, he was fighting in almost pitch darkness.

The only light he could see by now, came from the faint glow of his Celestial Bronze armour and weapons, and the few shafts of moonlight that managed to penetrate through the forest's thick canopy.

Hearing the creatures growling around him, Percy once again drew on his demigod abilities, pushing away the mounting feelings of fatigue he could feel building within him as he instead focused on surviving the night.

Raising his foot, Percy then proceeded to stamp on the ground, drawing on his geokinetic abilities, courtesy of his father being the God of Earthquakes, as he did so.

With the ground around him exploding in response, even as a surge of energy flowed through him and into the earth. Moments later great spires of rock exploded from the earth all around him, pointing out in every direction as they impaled the surrounding, swarming monsters. The ground itself noticeably shaking and cracking, as a sudden localised earthquake also caused nearby monsters to stumble, and trees in the vicinity to uproot and collapse.

Smiling at this, Percy's gaze flickered over to the palisade of stone spikes that now surrounded him. It provided him with a defensive buffer between him and the creatures, this being after it had already killed at least a dozen of his lupine foes.

Still despite this, he could see more of them appearing, and clambering over their impaled and dying brethren as they mindlessly invaded his defenses.

They didn't even flinch at his geokinetic onslaught, nor at so many of their packmates being slain. Instead they continued their assault. The beasts were inexorable, driven on by mindless hatred and insatiable hunger.

Taking a deep breath, Percy drew on his powers once again before he stamped his foot on the fractured earth beneath him once more.

This time, instead of more spikes, a shockwave explored out from the point of impact. A shockwave which blasted the spikes of rock out of the ground and sent them hurtling outward, like rockets, at the surrounding creatures.

Watching the path of one of the stone spikes, Percy saw that it tore through four of the creatures, before it struck one of the surrounding, still standing, trees only for it to rip through it too and cause it to fall.

All around him Percy could see nothing but mayhem as more than two dozen of the swarming, blakc furred creatures died, either due to being impaled or from having the trees collapse on top of them.

He had no time to think about the success of his attack though, as he suddenly felt something hit him from behind. The screeching sound of sharp claws being run along metal following soon after as he was knocked forward a few steps.

Luckily though, his armour held.

Twisting around Percy's blade struck the creature attacking him in the juncture between its neck and shoulder, the blade cutting at least a foot deep into the creature, before he proceeded to unceremoniously boot it off the end of his blade.

Sweeping his sword around, Percy drew more water out of the destroyed trees around him, increasing the density of the water cloaking both himself and his blade as he did so.

Narrowing his eyes, he extended the water enveloping his sword to add an extra two feet of length, even as he once again activated his shield.

Gritting his teeth as did this, he also allowed the water to soak through his armour and clothes now, and directly into his body through the pores on his skin. The cold, clean water quickly invigorated him, and brushing his fatigue temporarily away as he used the water to give himself a sudden adrenaline high. Being the son of Poseidon was awesome sometimes.

Lashing out with his now extended sword blade, Percy began to cut through the masses of creatures, not even paying attention now as he haphazardly sliced and hacked at away anything that got in his way.

There were too many of them, the last time he had faced this many monsters by himself had been a year ago, in the depths of Tartarus, and back then he had nearly been overwhelmed and killed.

In fact he probably would have died there had it not been for a friend he had made down there in the depths of hell, a friend who had dragged him out of the fray and taken him to safety.

He had learned from that mistake though, and here and now, he knew he was about to be overwhelmed.

There were too many of the creatures, and even though he had destroyed a few of the trees, letting more moonlight in, the forest was still dark and he was still running on fumes.

Lashing out with his sword, Percy began to cut through the horde. He needed to create an opening so he could get away from the main group attacking, and either flee to safety, or find a more defensible position.

Raising his shield and his sword, he only managed to make it a few metres before he was then distracted by a loud, roaring sound. This one didn't feel like any beast, or monster though. Instead it sounded like the roar of an engine.

Looking up, Percy quickly spotted a large vehicle, a kind he had never seen before, appearing overhead, a large flood light attached to the bottom of the flying craft shining down upon him from above.

From the looks of it his fighting had drawn the attention of some mortals.

Swinging his sword around once more, Percy decapitated one of the creatures that dared to get too close to him, even as he raised his other hand up in the air as he waved to get their attention.

Due to the Mist, the magical veil that hid the divine form of the mortals, he wasn't entirely sure what these mortals were seeing. But hopefully they would be able to at least tell he needed help.

The large craft shifted around to face him as Percy watched it, his mind only partially on hacking and slashing away at anything that got too close to him now as he instead tracked where the aircraft was going.

It appeared they had seen him.

What then followed was the sound of gunfire. With Percy blinking in surprise as he saw what looked like two Gatling guns attached to the bottom of the vehicle, began to rain down heavy fire on the swarm of creatures surrounding him.

At first it was an act that he thought was futile, after all only divine metal could kill monsters.

That said however, he was quickly taken by surprise as the mortals' guns began to actually cut down the creatures. The aircraft's guns thankfully aimed for around him as they drove the swarm of creatures away, leaving Percy free of attackers for the moment.

Turning in midair the aircraft soon showed it had bay doors in its side too. Which upon opening, revealed a tall, green eyed, blonde woman, who appeared to be holding a riding crop….

Percy blinked in surprise as he saw the woman's weapon of choice. But only for a moment, before he pushed his bemusement aside as he saw some of the creatures had gotten bolder and were once more advancing on him.

Turning back to look up at the woman, Percy was once again surprised to see that, as she waved the riding crop at the horde of monsters, several purple beams shot forth from her. The beams of purple light striking the surrounding creatures around him, and decimating at least a dozen of the ones closest to him.

"Quickly, get in!" The woman shouted at him, her voice barely audible above the sound of the vehicle's engines as it hovered closer to the ground and the roaring sound of the Gatling guns as they continued to bombard the horde of voracious creatures that even now still tried to get at him.

Percy nodded in response. He didn't need telling twice.

Without a word, he then ran forwards, slashing out with his blade and cutting through the head of a nearby creature as he did so, before using its dying and quickly disintegrating body as a springboard.

His leap propelling him up and into the vehicle. He didn't know who this woman was, but at the moment he didn't care. She was offering him help, that he would gladly help. On top of which, he thought as the guns continued to bombard the monsters below, she might have some answers about just what these monsters are. As after killing so many of them now, Percy was pretty damn sure they were not like the monsters he was used to killing.

Staggering forwards as he felt the aircraft suddenly lurch, Percy was only just aware of the woman calling out "Pilot, get us out of here." Her voice stern and uncompromising, before the aircraft began to turn away from the battlefield.

Pushing himself to his feet, Percy felt a sudden wave of exhaustion pass over him as he released his control on the cloak of water surrounding him as he instead allowed it to spill onto the metallic floor of the vehicle.

Staggering slightly, Percy ignored the woman for now, trusting in his well honed danger sense, and instead looked out of the still open doorway as the vehicle began to pull away and then rise up and out of the forest.

Letting out a tired sigh, Percy looked up only to stop and stare as he saw the moon.

Or at least as he saw what was left of it. for as he looked up, he could only do so in shock and horror, as from where he was standing the moon looked like it had been shattered.

( - )

AN: So what do you all think? Did you like it, is there anything I can improve upon? As I said this is my first story for this type of crossover, and although I love both the RWBY series and the Percy Jackson books I am willing to admit my knowledge of them is not flawless. Nor is my writing anywhere near that of a professional.

As for pairings, I have not decided on any yet, but I would be open to other peoples opinions if they can state a good reason behind it. Thanks.

Thanks a lot for reading!