AN: As many reviews said, the story is little flawed since Tartarus is not the kind of guy who will serve as a caretaker so I have decided to rewrite this and the next chapter. Enjoy!

Disclamer: I do not own PJO or HoO All rights belong to Rick Riordan.

Chapter 1: Forbidden Spawn of the Ocean and Wisdom

Third Person PoV

Poseidon paced nervously back and forth in the halls of Eileithyia's palace. She, after all, is the Goddess of Childbirth and his lover is giving birth to their first-born child. They have taken utmost precautions to ensure that Zeus will never learn of the child or else it will end badly for them and their offspring.

A few months after he has been crowned as king, he was told that a child born of a titan spawn and a god spawn will either spell their doom or save their immortal lives. Zeus, in his paranoia, had decreed that all gods born of Kronos in the Council have their first child with another god born of a titan. Poseidon knew that his relationship with Athena is illegal but as Aphrodite says: 'Nothing can stop true love'.

"Uncle?" Eileithyia called to her father's brother whose eyes are filled with worry.

"Is Athena alright? The child? Is he or she alright?" Poseidon asked his niece, nervousness evident in his voice for his lover and child's safety.

"Everything is fine uncle. Both of them are healthy. By the way, it's a boy."

Poseidon could not contain his excitement as he practically flew inside to see his lover and son lying side by side in a large bed.

"About time my love." The goddess with blonde curly hair and startling gray eyes told the sea god. "Perseus meet your father, Poseidon."

"Daddy!" The toddler with jet black hair and sea green eyes yelled, voice filled with mirth and excitement, jumped into the waiting hands of his father.

"Wait, I thought he is a new born?" Poseidon asked his lover as he ruffled his son's messy hair with his hand.

"Yes he is. Didn't you hear me screaming earlier while I'm giving birth to him?"

"Then why does he look like a 2 year old kid?"

The blonde rolled her eyes. "You're such a Seaweed Brain. Of course he will look like that. He is a godling!"

"Oh."

"Let's just hope that since he looks like you, he will think like me. I don't want him to think like a kindergartner forever in his immortal life."

"Hey!"

"Are you done with your childish arguments now?" a voice asked from the door.

Both gods glared at Eileithyia. She ignored them and continued:

"What will you do with the child. you know you can't keep him or father will have his head on a silver platter. He is a little paranoid and you know that."

"I did not know that you are sarcastic sister." Athena replied. "But she is right, we will need to hide Perseus from Zeus."

"But from who can we ask for help? I can't keep him in Atlantis as it will raise suspicions and create rumors of why I have a child with me that may alert Zeus. It needs to be someone who is not so fond of my brother." Poseidon said with a frown.

"I know a place where we can hide the child." Eileithyia said, a crease forming in her forehead.

"Where?"

"The Underworld."

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The group of four walked along the shady paths of the Underworld. They could already see Hades' gloomy palace in the distance. They soon arrived on the garden of Persephone. Three figures flew down from one of the trees towards the approaching visitors.

"My lord is expecting you. Follow me." The Fury which seems to be the leader of the three told Poseidon.

"Lead on Alecto." The god answered.

They followed the Furies inside the palace into the throne room. The doors to the throne room were made with black iron which Percy assumed as Stygian Iron, one of the few metals that could injure monsters and immortals. It has pictures that depict death in all ways from dying of old age to witnessing a god in true form.

Alecto opened the doors and lead the group inside. Percy was surprised because even though the walls were pitch black in color, they seem to radiate light (for better understanding, see the 'Fabric of Reality' block in a minecraft mod called 'Dimensional Doors'). On the large throne which is made with infused bones sat a man dressed in black silk lined with gold. His skin is albino white and has a shoulder length jet black hair and he seems to radiate power. Next to him is a smaller empty throne with nature engravings.

"What do you want, little brother?"

"Brother, I want to ask you a favour. I have a son with Athena-"

As soon as the word 'Athena' left Poseidon's lips, a massive sound was heard throughout the palace as Hades exploded.

"YOU DO REALIZE THAT BY JUST COMING HERE YOU MAY HAVE SPELLED ME AND MY FAMILY'S DOOM?" bellowed Hades.

"Yes bu-"

"Leave now brother. I will do you a favour by not mentioning this to Zeus but I will not risk my safety to protect your child. And one last thing, I suggest you dump the demigod listening outside in the River Lethe"

Rapid footsteps were heard along the halls.

"Athena, Eileithyia!" Poseidon called. "Take the child somewhere Zeus will not find him. I will take care of the eavesdropper." And with those words, he disappeared in a burst of light.

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Athena, Eileithyia and Perseus are currently walking along the Fields of Asphodel, discussing where to hide the godling.

"Where can we hide him now sister?" Athena asked. "The only god that can hide him won't assist us."

"Worry not Athena. There is one more deity whose domain Zeus or his allies does not have any influence with."

Athena's eyes widened at the realization.

"Tartarus, the Primordial God of the Abyss."

Line Break

The two goddesses along with the godling walked warily in the black citadel in Tartarus. The pillars of obsidian extend as farther than the naked eye could see through the hazy and foggy ceiling of the pit. The place reeked greatly of the smell of rotten eggs. Sulfur. The walls are covered with delicate and detailed engravings of monsters, death, torture and violence. Shrieks, screams, shouts, howls, growls, cheers and cries could be heard throughout the place. Soon they arrived at a massive double doors, twice as tall as a god in his godly form. Phrases older than the titans themselves decorate the doors.

"Are you sure about this?" Eileithyia asked her sibling.

"Yes sister. It is either probably dying in Tartarus' hand or absolute death by my father's bolt."

"Your father and I will always love you Perseus. We don't want to be separated from you but this is the only way to hide you from your uncle and grandfather."

"I understand mother. I love you both too."

"It is never too late to turn back until opening these doors." The Goddess of Childbirth told the wisdom goddess. "Last chance sister."

"No. We will proceed niece." And she opened the doors.

Only one word can describe the throne room: humongous. It makes the Olympian throne room looks like a closet compared to this. The walls were pitch black and Hellfire torches provide dim lighting here and there. Lava also occasionally drips from the ceiling. They saw many monsters guarding the place, their eyes following them suspiciously but none of took any action to stop them. The army consists of monsters ranging from telekhines and dracaenas to hydras and drakons. They also spotted some monsters that even the goddess of wisdom could not identify. They soon arrived at the foot of the throne and the gods knelt. The throne emits fear and sounds of violence so great that Hades' own throne seems like sunshine and rainbows in comparison.

A monstrous man with immense height sits in the throne. He has purple glistening flesh rippling with muscle. His fingers are tipped with razor sharp talons. His most distinguishing feature is his face. His black Stygian Iron boots are each the size of a coffin, and his hands are as large as crane scoops. His breastplate has faces of Gorgons, monsters, Cyclopes and dragons all pressing against his armor as if trying to escape. Worst of all, in place of a normal face is a swirling whirlpool and inward spiral of darkness, and his voice sounds like it is being drawn back inward rather than outward. A massive greatsword rests at his feet. Its blade is made of a silver-like material and is almost as long as the man itself and the hilt is made of a pitch black metal that seems to absorb light around it with a large ruby gem where the palm is supposed to be placed.

"Lord Tartarus." Athena and Eileithyia said bowing.

"Rise my grandchildren." The man clad in black whom the goddesses addressed as Lord Tartarus ordered. "Now tell me why the great Goddess of Wisdom and the Goddess of Childbirth came to my pit and is now grovelling at my feet."

"Milord, we would like to ask you a request. Poseidon and I had a child and we fear that Zeus will find out about his existence and make him fade so we humbly ask you to hide him from my father to keep him safe." Athena said stepping forward.

Tartarus raised an eyebrow. "You do realize that I may kill you all just because you came hear much more now that you are asking me a favor. Why not ask other gods like Hades for instance?".

"We already went to Hades milord but he does not see any reason why he should accept the child." the goddess answered.

"Very well I accept."

"Than-" Athena started but was cut off by Tartarus.

"But on a condition. I will need you bless the child that if he ever emerges alive from the pit arena where he will join after years of training, he will become my champion and will do my bidding from time to time."

"I accept and give the consent. Thank you milord." the mother said and the two disappeared in blinding flash of light.

Tartarus turned his attention to the godling before him. "State your name little one."

"P-Perseus sir."

"Hmmm... sir... I like it. Perses!"

A figure emerged from behind the throne. "Yes my lord?"

"I want you to train Perseus until he is old enough to join the pit arena."

"Of course my lord." He turned his attention to Perseus. "Come child. Let me show you your new, ahh, home."

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AN: What do you think of the edited version? Can you pinpoint more flaws? Hate it? Like it? Sorry if there are any wrong spelling or grammar because English is not my first language. This is my first story too. Reviews are greatly appreciated may it be a flame, praise or constructive criticism. Thank you for reading!