The Forgotten Legacy

Disclaimer: I don't own Assassin's Creed or PJatO or HoO. I wish I did, but if wishes were horses' even beggars would ride.

'Thoughts – Mind Speech'

"Normal Speech"

Prologue: Self-Discovery

January 31, 1888

It was time.

Thirteen year old Perseus felt it in his bones that he had proven himself worthy of receiving additional training from his Patron and his adoptive mother. As he focused his shadow traveling powers on Central Park leaving Hunterdon County New Jersey, the young demigod smiled warmly as he remembered the first time he had met her.

***Flashback, Three years earlier, Central Park NYC***

It had been eleven long months since the beginning of February, when Perseus Achilles Andreíos had escaped the living nightmare that was the orphanage. The abuse that he had gone through there, both physical and sexual, had hardened him, and yet at the same time, helped forge a sense of justice within himself. The ten year old boy had managed to survive by hiding in Central Park at night, and scavenging for food and water sometimes successfully, other times not so much.

Having managed to survive as long as he had had been due in part to his abilities that he had discovered by accident, back when he was only eight. Percy had been scavenging for food near the park when he found himself cornered by a drunken homeless man. The older man had been quite irate, and had somehow managed to shatter a bottle of rum and was swinging it at him drunkenly. Having been a target of the woman who had run the orphanage and her drunken rages before, Perseus had become rather adroit at avoiding and dodging any drunken assaults, and his abilities served him well until he slipped on the ice.

Falling on his butt, the young boy lost his focus on the threat in front of him and was dazed momentarily from the pain. As he looked back up and saw the man in front of him with the broken bottle swinging down at him, he felt a pull in his gut and raised his right hand instinctively to try and protect himself.

With his eyes shut tightly as he braced himself for a world of hurt, Percy opened his eyes to see what looked like a frozen circle of water forming in front of him out of the melted snow around him. Grasping at straws, the boy quickly willed the water in front of him to harden and then braced it to take the hit. It wouldn't be until much later that he recognized the design of the water was in the shape and form of a shield, which had the vague outlines of ancient Greek and Roman origin.

Percy had managed to make quick work of the man, knocking him out and making his escape. For the past two years he had been experimenting with this newfound ability, testing it, trying to improve his control and expand his capabilities with it. As it stood at the moment, he was limited to healing and forming a shield with water, as well as forming a spear and projectiles that were more lie crossbow bolts than arrows, but that seemed to be just the beginning of his abilities with water.

Over the next several weeks following that particular incident, he had started to notice a lot of strange creatures that started showing up in the area, and they all seemed to be rather odd and dangerous. The worst part of it all was the fact that over the years Perseus had noticed an increase in their numbers and types. So far as the young demigod was aware at this point in time, he seemed to be the only one who could see them, which worried him quite a bit. Then they finally managed to catch up to him one night, late in the month of January, in the year 1885.

As usual, Perseus had been keeping a close eye on his surroundings as he got ready to find a place to sleep for the night. He had been rubbing his chest, as many of the scars that he had hurt in the winter chill, when he noticed that the wildlife in the area went silent. Cautiously looking around while doing his best to look like he was staring at the stars, he counted three of the evil looking dogs from behind him and what looked to be another two on either side. Cursing mentally, he knew that he might not make it through this encounter, as it had become blatantly obvious that they were after him, not to mention the fact that food was rather scarce at this particular point in time.

While he slowly sped up the pace, the young boy checked his environs to see what he had to work with and saw a small stream the he knew fed into a nearby stream. As anyone who has been through harsh circumstances, experience is one of the cruelest, harshest, yet most thorough teachers there happen to be in existence. Perseus knew he had a fifty/fifty shot at this and that was only if he timed it just right.

Angling towards the pond, the demigod counted off the distance in his head before he felt something in his mind click and he took off running. Ignoring the howl of the hellhounds behind him, he started reaching deep inside him for his powers, and focused on an image in his mind as got closer to the body of water. Once he was nearly there, Percy spun on his heel and threw his hands forward straight from the hip towards the two hellhounds that were currently mid leap.

After two years of practicing every opportunity that he got, he had gotten as far as forming crossbow bolts of water that he was able to freeze mid-flight, and he could currently form four dozen of them in one shot. Sending a prayer to whoever was listening, he angled them as best he could and let fly.

Elsewhere in Central Park, just minutes earlier…

The night was chill and the skies above were cloudless, showcasing the moon and the stars in all their glory. The Protogenoi Nyx smiled slightly as she walked along talking with her consort and husband Erebos, as it had been quite some time ago that they had noticed a source of power in this area and were quite intrigued by who or what it might be.

As they were walking along, hidden by the Mist from prying eyes, they both felt a pulse of power, which came from a rather powerful demigod somewhere ahead in the distance. Turning to look at each other, they nodded and flashed in the direction that the powers came from.

Reappearing mere meters away from the target, they were astounded to find a nine or ten year old boy with raven black hair, sea green eyes, and a firmly set jaw facing off against five hellhounds. Stunned they could only watch as he sent multiple six inch long, inch wide bolts, all made from water that he froze as he called the water forth from the nearby pond. The bolts angled upwards and targeted the throats and chests of the two hellhounds that were in mid-jump, piercing them and killing them causing them to fade away into golden dust as they reached the boy.

The young demigod was winded, as he hadn't had a decent meal in a couple of days, and his momentary pause cost him dearly. As he was looking down at the dust swirling at his feet, attempting to catch his breath, Perseus was unaware of the other three hellhounds closing in on him, as well as the three others that were attempting to circle around to get at his flanks. His hard earned and honed battle instincts kicked in at that point, just in time for him to look up and attempt to dodge the incoming paw that was aimed at crushing his skull in one blow.

Too late, he felt the burning pain of the near miss, as three claws raked the left side of his face, cutting almost to the bone and barely missing his left eye. It took every last ounce of his will not to scream out in pain at this, as he focused on forming a shield of ice that he swung at the neck of the beast in desperation. Catching the beast by surprise, Percy managed to stun the beast for a second, but that was long enough for him to call upon his powers to form a spear that he thrust through the beast's eye. Getting back into a very rough, but well-practiced stance with his spear and shield, the demigod legacy of Poseidon took stock of his situation and realized he was well and truly screwed.

Even though they were quite surprised by the tenacity and rough level of skill the young boy had, both of the Protogenoi were also impressed with his level of awareness and his potential as a hero was limitless. From the clothes that he wore they could tell that he had been on his own for quite some time, and he had obviously fought monsters off before.

Blinking his eyes, Perseus faked a quick swipe across his left eyebrow to make it seem like he was at least partially blinded by the blood, when the two beasts in front of him made their move. The one on his left was the first one to go, as he waited until the last possible second to slam the edge of his shield against the neck, forcing it to the ground from their combined momentum, and a thrust of his spear finished it.

Knowing that he was almost at his limit, his senses flared, alerting him of danger to his rear. In desperation, and an adrenaline fueled last-ditch effort, he dropped his spear and focused. As he did so, the edges of his shield became much sharper, and he swung around with the shield held on his left arm while braced with his right. Letting go of his restraint, he yelled out his rage and frustration at possibly dying here, and allowed every last ounce of his unleashed emotion to fuel this effort.

Spinning in place, Perseus managed to catch the Hellhound in its exposed throat, slicing through the flesh and bone, leaving the head dangling by a few small slivers of skin. Totally exhausted, the boy dropped to his knees, accepting his fate, as he collapsed to the ground.

Nyx and Erebos stood there, shocked speechless as the young boy, in an adrenaline induced burst of strength, sheared through the neck of the hellhound almost completely before collapsing to his knees, and from there to his side. Shaken from her temporary stupor, she walked out from behind the cover of the trees and waved a slim white hand at the two remaining beasts, causing them to explode.

Gently approaching the young demigod, she knelt down and slowly rolled him onto his back, cradling his head in her lap. Brushing his hair ever so softly out of his eyes, the Goddess smiled down at him kindly as she watched young Perseus open his eyes and look up at her. "What is your name little one?"

Blinking his eyes, he swallowed thickly as he responded before passing out from exhaustion. "Perseus Achilles Andreíos…Milady…"

***Flashback Ends***

Central Park, NYC

Popping into the clearing where he had slain his first monster, Perseus stayed within the shadow and ensured that he was unseen by any mortals. True he could utilize the Mist and ensure that they saw nothing that they weren't supposed to, but this way was far easier and simpler. As his mother had taught the simplest means were more often the best and most effective ones.

After having made certain that he was indeed alone, he made his way out of the shadows and knelt down in the clearing, and began to pray to his mother in silence. As he kept his head bowed and patiently waited, his patience was rewarded by a flash of light and a gentle hand placed on his shoulder. Still though he waited until he heard his mother's voice before raising his head to look up at her, "I am very pleased with how much you have grown my son and very much impressed with how far you have come. You have done well, and I have several important people for you to meet, among them are your siblings and a few other choice relatives."

As Nyx waited for her youngest child to stand, she smiled as she gazed upon his features. Since she had completed an ancient ritual formally adopting him through blood rites, he had grown slightly faster than normal and was approaching five and a half feet in height. His raven black locks of hair had softened to be more like hers, and he had it bound into a wolf tail at the base of his skull.

His face had lost much of its baby fat and he had gained a slightly narrower nose as well as her high cheekbones and a light grey ring to his irises, circling the sea green like storm clouds hovering over a stormy sea. There were three narrow scars that ran from just above his left eyebrow down to his jawline, and they didn't detract from his attractiveness whatsoever, in fact they added a warrior's fearsome presence to his features.

Once Perseus was standing, she shadow traveled them both to her palace in Tartarus, where the rest of her family was waiting for them.

Tartarus, Nyx and Erebus' Throne room

Upon their arrival, Perseus smiled warmly at his mother figure briefly, and then resumed his neutral expression as he surveyed the throne room and the accompanying figures that he saw there. He immediately recognized that there were four Protogenoi besides his mother there, and it took him a few moments to place them, but he recognized them as Erebus, his father; Hemera, Aether, and Tartarus, who were his siblings and uncle respectively.

Mentally preparing for whatever was to come, Perseus waited for his mother to begin, and he calmed himself as she began to speak. "Husband, Brother, my children, it is time for you to greet the newest member of our family, our son Perseus Achilles Andreíos. Because of the manner in which he was adopted, through blood rites using my blood, he is as much my son as he is his birth mother's or his Olympian father's."

As she finished speaking, the Goddess of the night turned towards her son with pride and watched as he bowed towards his family in respect. After a moment had passed she calmly placed her hand on his shoulder as a signal for him to stand and accompany her forward. Now that they had gotten the introductions out of the way, Perseus was engulfed in hugs from the Goddesses and given one-armed hugs from the Gods.

After a few minutes of conversation, Tartarus cleared his throat and began to speak. "Now then, I hate to leave so soon after having met you, nephew, but I must get back to the pits before certain inmates get any wild ideas. However, I will leave you with a gift, one that I am fairly sure that you will enjoy having in the future."

With that said, he held out a hand towards his youngest relation and waited for him to extend his hand outwards. Once Perseus held out his hand, the dark haired God dropped two metallic objects in his hands. "Those two rings are a matched set of swords, designed in the Mameluke style, and are made of Stygian Iron and Imperial Gold. When you have put them on, they will be bound to you; if you are disarmed they will return to your hands and only you have the ability to remove the rings."

Everyone watched as Percy placed them on his middle fingers and then ran the two fingers over the opposite hands ring. The two blades were thirty-four inches in length, two inches wide, single edged works of art. From the tip of the blade to where the blade met the hilt along the spine ran a strip of Imperial Gold that had been specially fused with the Stygian Iron, and two more had been embedded in either side and ground down to act as fullers. The hilt and handle were made from polished ivory that was wrapped in ray skin.

As he inspected the two swords, the young demigod noted the inscriptions that had been engraved along the length of the blade, in between the fuller and the spine. In Greek lettering were two words: αιώνιος έκλειψη. Looking up at his uncle, Perseus smiled and bowed his head in thanks. "Eternal Eclipse is a very apt name for these blades, Uncle. You have my gratitude and my promise that many monsters shall fall to them at my hands."

Smirking and waving off his thanks, the God of the Pit disappeared in a wave of shadow, leaving his nephew to look up at his father figure who had stepped forward. Letting the blades return to their ring form, Perseus turned towards Erebus expectantly as he waited to see what his father had in store for him.

Approaching his adopted son, the God of Darkness and the Depths smirked wickedly as he snapped his fingers and placed his hands on Perseus' shoulders. "My son, the gift that I have given you is clothing and armor fitting for one that we call son. It is your mother's gift to you as well. I have outfitted you with a few minor weapons and armor, while the clothing was all your mother's doing."

Standing there, he felt his clothes shift and change as he turned towards his mother. Seeing his inquisitive glance, Nyx clapped her hands together and a mirror appeared showing him his new outfit.

A blood red silk shirt, black leather knee length breeches with black knee high boots, which was topped off by a hooded half cloak that draped over his left shoulder and was attached to his body by means of a two inch wide baldric that bore a Stygian Iron clasp that bore the symbols of his parents: a crescent moon surrounding a star, with a pair of angel's wings behind them. Running his fingers across the clasp caused the clothes to shift again, only this time he had brought out his armor.

Sitting atop his head was a Corinthian Royal Helm with a blood red horse hair crest. The cuirass, shoulder guards, bracers and greaves all matched the helm, made from Stygian Iron and the details were wrought of Imperial Gold. Sheathed on either side of his waist were two golden kukris, the hunting knives of India, and in a bandolier attached to his right shoulder were ten throwing knives made from the same metal as his armor.

Rapidly running his fingers over the clasp once more, Perseus turned to his mother and hugged her tight. "Thank you so much, mother. This means a lot to me, that you would do something like this for me."

Turning back to his father, he started to bow, but was quickly wrapped up in a bone crushing hug from his old man. "You never need bow to us, Perseus. We may not be your birth parents, but you are our son all the same, and we did this to keep you safe in your travels, no matter where you go or what you do."

Smiling up at his father, he nodded and then turned towards Hemera and Aether, who were currently standing there in their Roman aspects of Dies and Ether. Hemera walked up to him and embraced him before taking a step back, and holding him by the shoulders, looked him over. "It is wonderful to finally meet you, little brother. I would like for you to become my Champion, and receive my blessing. The majority of your duties are to assist in the policing and elimination of monsters, protecting mortals, and rescuing demigods that are in need. My blessing will empower the abilities that you already have, as well as grant you access to my healing light ability and the ability to fire arrows made entirely of light from your bow. Will you accept, Perseus Achilles Andreíos, and become my Champion?"

Nodding his acceptance, He quickly went to one knee in front of her. "I, Perseus Achilles Andreíos, accept the duties and responsibilities as the Champion of Hemera, Primordial Goddess of the Day." He then bowed his head and braced himself as she laid her hands on his shoulders and gave him a small portion of her power as a blessing, biting his lip to keep from crying out as the power swept through his very veins, empowering him.

Slowly the demigod got to his feet, and swayed slightly from side to side for a moment as he regained his bearings. Once he was stable again, he opened his eyes and smiled at everyone, before turning to his uncle and waiting for his approach.

Aether smiled at his younger brother, and moved forward to greet him by clapping his hands on Percy's shoulders. "I have two gifts for you, my brother. The first is my blessing, which will do much the same as Hemera's blessing, and it will give you the ability to send messages in the wind. The second is an animal to be your constant companion, however, it is up to you to decide what animal you would have as a companion, and you will have the ability to speak through your thoughts to your companion."

Thinking it over for a moment, Perseus smiled softly and murmured something just out of hearing. Looking up at his uncle, he spoke once more, clearly. "I would appreciate it greatly if I could have a Caucasian Eagle as a companion, Uncle."

Nodding his head, Aether snapped his fingers and a brilliant flash of light lit up the room. After his vision cleared up he looked around before his attention was drawn to a rather large gold and white feathered eagle perched on his older brother's shoulder. With a look of awe on his face, he estimated the size of the aerial predator. Six feet from wingtip to wingtip, about two feet in height from beak to tail feathers, and with the bright golden eyes that shone with intelligence looking him in the eye and sizing him up in turn, Percy knew that he'd chosen well.

Holding out his arm in front of him, parallel to the ground, the young man waited patiently for its decision. A minute or two later the eagle had made its decision and with a brief flap of it wings, made the move to his arm. From there Percy shifted his arm so that the bird of prey could shift up to his shoulder and then turned so that they were both facing his older brother once more. "We're ready brother whenever you are."

Chuckling aloud, Aether laid one of his hands on the bird and the other on Perseus' opposite shoulder. Once more there was another, slightly lesser, bright flash of light that momentarily blinded him. Again he blinked his eyes and waited to be able to see, and as he shook his head he heard a feminine voice in his head. 'Greetings young Master Perseus, my name is Thýella.'

Without missing a beat, Percy chuckled mentally. 'Greetings to you as well Thýella, but please, call me Percy or Perseus, as I am not your master but your companion. I wouldn't feel right having you refer to me in such a manner.'

Getting a light and airy feminine chuckle in response as his sight finally returned, Percy bowed his head to his older brother out of respect. "Thank you, brother for your gifts. I am greatly blessed to have such a wonderful family and home. I am certain that my training begins in earnest now, am I right?"

Eerie grins were his response and he just gulped as he realized that things would never be the same from here on out.

They would be better.

A/N: This was just the beginning of what I have in mind, and if you can't see the hints of Assassin's Creed, go back and look at his weapons and the way his unarmored outfit are described and you will see. I am not going to do a full blown crossover between the two, but more just borrowing things that I think would fit in here and there. I will warn you that there will be quite a few time skips, at least in this first book, as there is quite a bit of time in between now, when I have Percy born, in the 1800's, and when the main story of the Olympians in the books picks up, in the 21st century.

I will also tell you that once he is revealed to Olympus, that he will be a part of the Roman camp and not the Greek, and I already have pairings in mind. CIAO!