Author's Notes

Hey there, once again. I'm currently stuck on Psychokinetic Disaster and having writer's block. But I got the whole plot planned out. Just decided I do something different. This time, I'm doing Nicercy! Yeah, you heard it. Nicercy. Nico x Percy. Nico tops, Percy bottoms. Although I love Percico, I also like the idea of Nicercy so here I am, trying it out. So, yeah. This chapter'll be really short but don't worry, it's only the prologue. The next chapter'll be long.

I'm not sure whether to make it Rated M for smut or Rated T for no smut at all. I need you guys to choose. Smut? or naahh? I also took "AU (Alternate Universe)" literally and made it into this.

Disclaimer: I do not own the characters. What's mine is the idea of the plot.

Ocean – Ōkeanos (Ancient Greek)

Nether – Nithera (Old English)

Fire – Fyrian (Old English)

The Heirs of Nithera and Ōkeanos

Prologue

Chaos has taken over.

Ōkeanosians flee in different directions as their habitat is destroyed. Planet Ōkeanos has reached its end. Earthquakes are wrecking their grounds as well as their homes. The heat from the sun boils certain parts of the sea thus cooking fishes and Ōkeanosians altogether in a brutal death. This race of beautiful creatures with light blue skin and hypnotic eyes of different colors, small fins attached at their forearms will soon be pushed to extinction. In the palace, guards have prepared the two reserved escape pods suitable for the king and queen's baby. The other pod reserved for their closest friends', the Chases, baby.

King Poseidon Jackson escorted his queen, Sally Jackson, and their baby, Percy Jackson, into the prepared room. Sally can't stop the tears that fell from her face as she kissed her son. The Chases came next. Athena Chase is cradling her child, silent tears cascading down her cheeks. Poseidon and Frederick nod solemnly at each other as they placed Percy Jackson and Annabeth Chase into separate escape pods after being kissed for the last time by their mothers and fathers. The king prepared a note for the next planet they land on:

"Our planet, Ōkeanos, has come to its end. These two are the last remaining Ōkeanosians alive as you read this. Please take good care of them. The boy is named Percy Jackson, our son and heir to the throne. The girl is Annabeth Chase, a family friend's daughter. We are eternally grateful in advance for the care you give them."

King Poseidon inserted the note beside Percy and kissed him one more time. "Be safe, child. We will always love you." He smiled sadly. From the background, he can hear Frederick soothing Athena down as she let out sobs. Once the thin light blue glass-like doors shut close, he stepped back to comfort his wife and beloved, Sally. They watch as the escape pods propel themselves upward and zoom out of sight. The walls around them shivered as the earthquakes grew stronger. Both husbands held onto their wives as they await their end.

...

In the planet Nithera, king Hades di Angelo and queen Persephone di Angelo as well as the other Nitherans watch in horror and immense sympathy as the blue planet in sight wreck down. Queen Persephone sighed and shook her head, heading back to the palace to watch over her two children, Nico di Angelo and Hazel di Angelo. Meanwhile, king Hades stayed outside, eyes glued to the horrific disaster occurring.

Curiosity flooded him as he squint his eyes at the two small dots coming from the planet. It wasn't until the two dots became clear enough to be escape pods that the people of Nithera murmured endlessly and made way for the incoming capsule.

King Hades immediately approached the two pods, his guards trailing from behind. The glass doors opened and water came spewing out. For a moment, Hades thought the two beings in the escape pods needed the water to live and watched in shock as they are drained of the liquid. Instead, his shock drifted and felt relief when the two babies giggled and grabbed at air. He saw the note tucked at the baby's side and grabbed it.

The paper felt dry. How the paper remained dry with all the water that came within the pod he doesn't know. He unfolded it and read it out loud. Nitherans gathered around him and pushed at each other to try and take a look at the two living and breathing species.

"Are they from that planet?"

"Thank goodness they're alive."

"Why didn't the parents go with them?"

"Do they have names?"

"What are they called?"

The king hushed them and gave the letter to one of the guards. The queen made her way towards the two escape pods when she heard the commotion. "What is this?" she asked. The guard holding the paper gave the letter to her. "These two are the only living Ōkeanosians alive from the planet we saw get demolished, planet Ōkeanos." The words felt foreign to him as he recalled what the letter said.

"The boy is Percy Jackson and the girl is Annabeth Chase. This boy, Percy Jackson, is an heir to the throne; a son of the king and queen of the blue planet." He added. "We need someone to take them into their care as we already have our own problems to handle." King Hades announced. Queen Persephone slapped him on the upper arm and glared at him. The king ignored her.

"Any volunteers?" he looked around him.

Nitherans whispered to themselves and others gave uncertain glances. One hand shot up in the air, catching the king's attention. He waved past Nitherans as he approached the volunteer. It was him. The man who came to their planet a few months ago with his son, sharing the same news that the planet they lived on, Fyrian, has diminished the flames and ended their world. People of Fyrian live in heat or in normal atmosphere, at most. But the warmth from their planet has dropped to negative and all flames burned out. Hephaestus used the big escape pod-like machinery he made to escape the freezing planet with his son.

King Hades said nothing but nodded at the man. He saw the understanding in his eyes and refused to argue. He led Hephaestus to the two children and retrieved the letter from the guards, giving it to the man who wished to take the rare species into his care. "When they grow up, don't keep them in the dark. Let them know what happened to their planet and who they are." The king said, watching as Hephaestus held the two babies carefully in each arm. "That is all." Hephaestus nodded and stalked back to his home.