Thrusted into the Unknown

Disclaimer: I do not own either Percy Jackson or Harry Potter

Also, it's been some time since I've read the Harry Potter books. So, if I get something incorrect please message me.

Chapter 1:

Poseidon was intensely worried at his mistake and lack of morals to withhold a binding agreement. Underwater, in his hands, was a one-year old child who was steadily asleep. Despite being in the chilly water, the toddler seemed at peace as he continuously wiggled in his cotton blanket and further enveloped himself into the crook of his father's elbow.

All Poseidon could do was smile and hope that his act of desperation would be fruitful. He was traveling through a lake into an unknown location hidden to monsters and some immortals alike. It was found accidentally. He hadn't known that there were such things as wizards and witches. However, he realized his own ignorance, that his pantheon of immortal beings wasn't the only source of power or the unknown in the world.

He also hadn't met these magical wizards and witches and did not know the full extent of their power. However, their protection spells seemed to acknowledge Poseidon as a wizard. As he easily crossed the protective barrier that hid and protected Hogwarts from the unknown eyes.

However, the headmaster sensed a strong being or wizard trespass the school's protective barriers and readily apparated to the designated location he felt the presence. The headmaster witnessed a man levitate from deep within the water onto the surface. What surprised him the most was the lack of fatigue the individual displayed.

"State your purpose" The headmaster said as he fetched his wand.

As soon as Poseidon heard a voice, he materialized his trident which was ready to cause earthquakes or cause a tsunami against his aggressor.

"How odd. I've seen very few wizards use a staff as their method to channel magic." The headmaster said incredulously.

"It is not a staff old man. It is my symbol of power. The trident." Poseidon fired back as he maneuvered himself carefully, to not wake up his son.

The headmaster noticed the child in his hands which only further confused him on why this wizard was invading school grounds.

"I'm not a wizard. I am the god of the sea, I am Poseidon." The old man with a large beard had never heard such a thing.

"Well Poseidon. My name is Albus Dumbledore. I am the headmaster of this well esteemed school." Dumbledore finished as he withdrew his wand and calmly walked toward the sea god.

Already sensing that he was going to be questioned Poseidon immediately explained his situation. "Nice to meet you Albus. I have a dilemma. I need this child I have in my hands to be hidden from the dangers that lurk in my world. I believe he can pass as a wizard. For he is my son and he has inherited some of my powers." Poseidon trailed as he noticed that Dumbledore seemed unaffected by his story.

"I want him to be safe. I believe this is the most viable solution. Your world is safe is it not?" Poseidon pushed on hoping for Dumbledore to speak.

"It is safe now. The dark lord has been defeated, thanks to a child." Dumbledore held a faraway look in his eyes. The moonlight reflecting from his eyes only further reassured that. Poseidon could only muster a confused looked towards the old and wise headmaster.

The dark lord had only been defeated only two weeks ago. For the magical world it was a victory. However, it was also hard to believe that the threat was gone for good. Dumbledore had a deep and lingering perturbation within him. He believed that it wasn't the last time he would see a dark wizard, or specifically, Voldemort within his era.

"Very well Poseidon. I will take the boy." Poseidon sighed in relief. His desperate act bore fruit but not without its consequences.

"However, I ask that you have no contact with the boy. You are going to be dead to him and likewise he will believe so. In addition, since I have bought your silly tale of being a god. You will provide every monetary necessity the boy will require. Since you have not left the child with his mother, I have to come the conclusion that she is no longer living?" Dumbledore finished and Poseidon could only acknowledge his question by nodding.

"Very well. I will look after your boy Poseidon. But you must adhere to my demands. He will grow with another orphan, the one that saved the wizarding world." Dumbledore finally said.

Poseidon had no choice or option to negotiate the terms. He had to adhere to them for the sake of his child's safety.

"Very well Albus. Take care of my son Percy Jackson." Poseidon gently said as he passed his child to Dumbledore. Poseidon melted into a puddle as he disappeared.

Dumbledore once again walked on the street of Privet drive in Little Whinging. The same steps he took to the front door as he delivered Harry Potter. Now he was delivering a different child. One that had the darkest black hair he had ever seen. Dumbledore could only marvel at what dangers the boy could have faced in his father's world. But he didn't dwell on it as he set the boy down on the door floor mat, with a letter attached.

Dear Mr. and Mrs. Dursley,

We once again ask of your hospitality to care of another orphaned child due to a separate war. Just like Harry, his parents have been treacherously killed and he will need parent figures and guidance. I believe that growing up with Harry, they will both understand each other due to their circumstances. The boy's name is Percy Jackson, his father was a wealthy pureblood wizard. A long-lost line within the wizarding world. A family line we long believed was instinct. But it wasn't so.

To accommodate him into your family, we will exchange some of his father's money to muggle currency. This way his expenses will be indirectly paid by his father and the money delivered to you.

Sincerely,

Albus Dumbledore