Note: What? Crossover story and a chapter story? This is something that I've been working on for a few months. I've know there are a few stories like this but none of them really hit home for me. So, the obvious is when you don't have the things you want, you gotta make it yourself.

So, first things first, this is a P3/HP crossover. It has some elements from previous Persona games and it might have some SMT peeps that will crop up. This is after the events of P3 and The Answer for the Persona side of things. For the HP side, it will take place during the 5th year. Cliche I know but there is a reason people pick the later years when writing stories. One, lots of drama to work with. Secondly, if you gotta fit in different plot points and character from other fandoms, they tend to work out better.

As always, constructive criticism and reviews are always necessary and welcome.

Chapter One: The Summoning

The moment had finally arrived. Months of searching, of rumors and false leads, long dead cults and crumbling scrolls coming to reality. Immortality was not a unattainable goal out of his reach. He would live forever and the world would kneel under his rule. Any answer to his goal were exhausted in England so he had to branch out to other means. Away from Europe, away from meddlesome enemies and to places with arts only known to the people who lived there. Ancient works that tapped into forgotten energies and entities not seen since the beginning of Man.

The advantage to further his ends was well worth the drawback. Wasn't that what followers were for? To take the brunt of any damage that could come to their lord? It was no matter. The Dark Lord watched his Death Eaters follow the summoning to his specific instructions. Such magic was inelegant - barbaric even - but held power. Wizards would allude it to being like alchemy though it was far from the truth.

This magic - summoning magic that could not be classified by useless labels as light or dark - was lost to modern magic teachings. The people who died to stop him from knowing this deserved the pain and misery in their final moments. He could still hear their dying cries with the names of their gods on bloodied lips and it served to bring a rush of satisfaction through him. Wine red eyes traced the near complete writing on the ground, their presence alone giving the nighttime air a heavy atmosphere. It was as if unseen eyes were watching the scene with anticipation.

"M-My Lord, the circle is ready."

Ah, so it was. Voldemort turned his attention to Wormtail with a haughty expression on his features. The spineless creature cowered under his gaze and wrung his bloodied hands together. He stepped out from the shadows of the trees to survey the completed circle. It took up the majority of the clearing and pulsed with an eerie blue light. Markings unfit for human eyes intertwined with a language long dead drew into a shimmering dot in the middle. There was no flaw that he could see.

For once, the sniveling worm did something right. He picked the clearing specifically for this purpose. It was deep in the woods away from any prying eyes or nosy spies. The full moon's light illuminated the space as if it was waiting for what would happen. One gesture with his hand and his followers gathered around the edge of the circle in silence. This would fulfill his goal. He could create the world he wanted and be the immortal being to rule it. He raised his arms, drawing on the magic around him and forced it into the circle. The pulsing picked up and glow brightened with Man's first language on his lips as he spoke.

"I call upon those who have created the universe, the beings responsible of shaping Man to heed me! I, Lord Voldemort, invoke thee!"

The sea of the Collective Unconscious was a place of infinite possibilities. Untold fathoms and branching rivers that led to mysterious destinations. Demons instead of Shadows. Worlds with God and Lucifer locked in a endless war with Man in the middle. Paths where the universe was constantly reborn and shaped by those with a Reason. Rivers that abruptly cut off and plunged into a void where God nor Man would tread again. On one particular path, a battle for the world took place.

A chosen one -a Wild Card who ended up holding The Universe - gave up the culmination of his being and became the Great Seal. All done to prevent incomprehensible entities from bringing about the Fall. It would be expected for a person to shoulder such a burden alone. Instead, the Avatar of Nyx willingly spends eternity with him. A being that should have vanished once defeated, but clung to the thing that made it different. A Shadow that learned to be human from being sealed within one and forgetting his purpose until the Fall. Even as he lounged in the vast twinkling space of the Seal, the Avatar found itself content.

It didn't have to look after the Great Seal. Even when the being of power came to disturb the quiet peace, it kept watch. The Avatar - no, Ryoji Mochizuki - remembered how kind the Messiah had been to him. Talks during the Dark Hour before he knew himself, spending time after class, the disastrous trip to the hot spring. The Messiah was everything to him. He paid attention to the boy lying in his lap and ran gentle fingers through soft blue locks. He let out a content hum as the other let out a distracted sigh and shifted to lie on his side. The periods of peace they shared were something that he cherished. The teenager let out a soft tired noise that had his fingers pausing in their motion.

"What has you in such a mood, Ryoji?" came out in a tired rasp that was swallowed by the celestial void that surrounded them.

Resuming his humming, he focused on the silky strands sliding over his hands. Was he in a mood? He tilted his head back and closed his eyes to figure out what he was feeling. He felt the usual contentment, the quiet stillness that surrounded them and wait- there was something. Something wrong that sent chills to the core of his being and for some reason, familiar. Nothing should be able to break into their space. Nyx was sealed and Erebrus could not meet her so what was he feeling?

Didn't Makoto feel it? No, he knew his companion well enough. He probably knew something was wrong but wanted Ryoji to confirm it. The encroaching feeling felt malevolent like it wanted to pull him into becoming the Avatar again and destroying Ryoji Mochizuki. He could imagine the...problems and what would happen to Makoto? He was the Great Seal and nothing should be able to make him feel this way. The Seal could be damaged but never broken.

A questioning noise broke him out his thoughts as he opened his eyes to find alert grey-blue ones staring back at him. The minor trembling of his own hands he could ignore, the reassuring words dying in his throat at that look. Those eyes were never fully aware. There was a distant gaze of apathy or in a better mood, a silent contentment. Ryoji knew the beginnings of panic and confusion shouldn't be there at all. His own growing confusion and unwanted fear would not help. What in the world was going on?

"Makoto, what's wrong?"

"It...hurts? Something is attacking me. The Seal. From the inside? That doesn't make sense."

No. It did not. As Makoto finished his words, cracks crept along his face like someone dropped a porcelain vase. The blank expression couldn't hide the growing pain in his eyes as he brought one of his hands to his face. Chips rained down onto both of them as they stared up in confused horror. His hand was covered in cracks and two of his fingers were dissolving into black dust. Makoto tried to clamp down on his panic but Ryoji beat him to it.

Ryoji grabbed his hand and winced when the dust covered both their clothes. The other tried to be careful as he turned his hand over to inspect it. The gentle touch to his palm had the pale flesh break at his touch and leaving a hollow hold in Makoto's hand. At least, they thought it was empty. Out of the hole, a collection of bright white masks stared back at them. Masks that looked too much like the ones Shadows wore.

"What the hell...how is this happening? What is this? Th-This isn't Nyx. You stopped the Fall. Your friends defeated Erebus!"

Ryoji found him panic turning into outright confused terror at the unknown entity and the eerie connection he had to it. The slithering sounds grew and Ryoji pushed Makoto's hand away as tentacles exploded out of the hole. Makoto's entire arm shattered into fine powder and the writhing mass of tentacles massed into a semblance of a humanoid figure. Makoto let out a whistle of a breath and squeezed his friend's hand tight in pain. Whatever this horror was, it was actively destroying the Great Seal and they had no idea what to do to stop it.

"What a charming scene to stumble upon! To be lost at sea for so long and what are the chances that I would be called upon by an interesting human with a wonderful wish? Such negativity, greed, and delicious hatred from it. I could bathe it in if I could."

The entity seemed to circle around them in the growing darkness with an aura of blood lust and danger. The twinkling stars that served as their lights dimmed one by one until the only light given was coming from masks covering the being's body. As it grew close, the destruction got worse. Makoto could feel himself slipping away and it was scaring the hell out of him. Ryoji pulled him closer and was starting to look more like the Avatar he fought that day he made his sacrifice. His remaining hand covered part of his face as he felt it collapse and black dust seeped through his fingers. This thing wasn't a Shadow, was it?

It felt like something akin to Nyx except older and much worse. As if the Fall could have been a cakewalk compared to what this thing wanted. It was taking immense pleasure in their confusion and mounting terror. There was a feeling of something trying to wrap around his leg when Ryoji tugged him away with a threatening growl. His leg snapped away from him and he let himself be sat up, wary of the tendrils starting to invade their space. It knew it had them at a disadvantage and was just toying them.

"What are you? What do you want from us? How are you destroying the Great Seal? I created the Arcana to stop things like you." Makoto said, tightening his grip as each word he spoke threatened to put a new hole in his face.

There was no answer to his question except for silent amusement. It took both by surprise when tentacles ripped them apart with no trouble at all. Makoto found himself disoriented and his vision obscured by cloying darkness. He couldn't seen Ryoji but he could hear his cursing and calling out to him. He struggled the best he could to call out or get free when the sensation from the waist down disappeared. He didn't even know what they were fighting against. It had them off guard from the start.

He managed to get Ryoji's name out, dread rising in him once angry threats turned into pained screams before being cut short. Ryoji was gone and that was impossible. Ryoji was never gone. He struggled anew in the tight grip around his crumbling body, grunting when the tentacles tightened to hold him in place. What he could only assume was the "face" of the entity appeared in front of him out of the darkness and laughed at him.

"Now don't give that face...well, with what little you have left. Your 'Arcana' is nothing without that meddling bastard in the forefront. Minions only have so much power. Did he really think the Fall could be stopped by a simple human? Though you are different from the others. Younger and so willing to be a barrier for Mankind. Let me tell you something that you will love to hear." The entity leaned forward and the tentacles squeezed Makoto tighter, dust collecting on the floor. "I destroyed this miserable planet once and I would enjoy doing it again, child of Man."

"I don't believe you nor have any idea what you're talking about. I will never let the Fall come. You won't win." Makoto said as the rest of him crumbled to dust.

Dark amusement came from the entity and a tentacle wrapped around Makato's head, obscuring his vision.

"I look forward to the "fight", child of Man. Let us see how you fare in this world. Maybe he'll finally show his face instead of sending humans to do his work. May the seas sweep you into the Void."

The tentacle tightened around his head and there was instant of all consuming agony and then he knew nothing.