So, yeah, I decided to create this fanfic some days ago, but since I never read Harry Potter I asked some friends to help me with it! So, shout out to my amazing co-writers Matt and Liss!

I don't know how is Hagrid's accent so I just wrote normally ok?

By the way, in my story Nico's sword turns into the Hades mini statue that he keeps on his pocket and it comes back to his pocket whenever he loses it.

Disclaimer: I do not own Nico or Harry, but there will be some OCs in the story!

Nico's POV

Why the hell am I here exactly? I asked myself once again looking for a none existent platform 9¾ at the King's Cross station in England. Now, what was I doing there was simple, although I couldn't even understand some things.

FLASHBACK

I walked peacefully at the Central Park after visiting Percy and Mrs. Jackson, I mean, Aunt Sally, she keeps insisting to call her Aunt Sally.

There were a lot of street bands playing, couples in love, people walking with their dogs, children playing, I felt left out, not that I've ever felt in, the only people that talk to me normally are Percy, Thalia, Annabeth, Hazel, Leo, Grover (only sometimes) and Tyson (well, as normal as a conversation can be with him). Even with these people I feel left out, I mean, Percy is like a big brother to me, but he's almost 19 and he's leaving for university, and so is Annabeth. Thalia is a huntress of Artemis. Grover is always in his business of Lord of the Wild. Tyson is a Cyclops and lives in the ocean with his father. Hazel is my sister and I love her. Leo is like an annoying, cool, funny, awkward brother.

Everyone stared at me, most of them looked afraid, some annoyed by my presence and the others only ignored my existence. I rolled my eyes and closed them tightly; I let out a deep sigh and I felt a rush of air hit me. I opened my eyes in alert, but as soon as opened them all I could see was too bright, so closed them and blinked until my eyes got used to the light and I could see straight.

'Oh shit' I thought as I realized where I was 'what did I do this time?' I asked myself.

As soon as I thought this I bowed in respect and said:

"What a surprise my lords" I could see Artemis scowling from her throne "And ladies of course" I said smirking a little as Artemis rolled her eyes.

"Charming as ever" Aphrodite said smirking from her throne.

"Aphrodite, I would appreciate if you could stop flirting with my son" I heard my father say from the throne that he only used at the winter solstice, what was not the case. Some gods started laughing at my fathers response, Poseidon included. For some reason he was my favorite uncle, maybe because he was Percy's father, or maybe because he didn't try to kill me or kill my mom.

"The boy is here father, start this because I have a lot of things to do and better places to be" Artemis said arrogantly and Zeus gave her a look of don't-you-dare-speak-to-me-in-that-tone-again. When he was about to speak my father interrupted him.

"Let's skip the formalities. Nico, we have a quest for you" my father said in a none surprising emotionless voice. The other Olympians looked chocked, I don't if it was for interrupting Zeus or speaking so emotionlessly towards his son, but I was used to it.

"Yes, father"

"A long time ago Hecate blessed some mortals by her choice and gave them powers, their children were born with powers and now there is whole civilization of wizards and witches. We have lived in peace with them, even had children with some, now there is a whole magical world full of wizards. But now a very powerful wizard is trying to take over the world and etc. He is also that guy that is giving me extra paperwork"

"Tom Riddle?" I guessed.

"Yes, but he calls himself 'Lord Voldemort'' as my father said this I busted out laughing along with all the gods except my dad, Hera, Hecate and Zeus. When we stopped he continued, "Anyway, you know what he did so I won't repeat it. Hecate blessed you with her powers and you're going to Hogwarts to destroy the horcruxes" I busted out laughing again.

"Come on! Do this people have a brain damage? Can't they put a normal name in anything?" Apollo asked and I could see many gods agreeing.

"May I continue?" my father asked groaning, yup, he was definitely losing his temper, the gods shut up "As I was saying, you're going to Hogwarts School of Witchcraft and Wizardry, you're going to attend the sixth year, don't tell anybody your true identity, the only people that know who you are and that you're going are Albus Dumbledore, the headmaster, and Minerva McGonagall" he said and I nodded "Hecate translated your books to Ancient Greek, they are already at school with the rest of your school materials, now you only need a wand and the school uniform" I nodded again "Hecate" he called the goddess of magic. She walked towards me with a wicked smirk on her face, her raven hair bounced as she walked and orange eyes, or was it purple? I couldn't say which color was it because they kept changing.

"Nico, it's nice to meet you" she said sweetly, but I could sense the curiosity and amusement in her voice, I bowed in respect.

"Lady Hecate" I said, "It's nice to meet you too" I could hear Aphrodite murmuring something that made the other gods roll their eyes.

"Here is your wand and inside this bag there are you uniforms and some ambrosia and nectar in case of emergency" she said and gave me a black bag and a stick "Your wand is thirteen inches long made of Georgia oak with Demon's blood core, take care of it, it is a unique wand" she said smiling.

"We're sending you to the King's Cross station, the train to Hogwarts leave in… Ten minutes! One more detail" this time he was in his normal size at my side "Tom is your brother, so train your powers to fight with someone with the same capacities" my father said and smirked to me "Good luck, son"

END OF FLASHBACK

Here I am looking for a none existent platform, I was about to ask another person (yes, I was this desperate) for it when a bunch of red headed people passed through a column between platform 9 and 10, I hit my face, how could I be this stupid? Of course there would be magical between both platforms. I was about to follow them when I ran into someone or someone into me.

"I'm sorry I didn't see you there!" said a red haired boy of what it seemed 16 years old, he must be of the group that just passed by me.

"No problem, I didn't see you either" I said and he walked through the wall, I was going to follow him when I felt my body being thrown against a wall "Oh, come on! Not now!" I yelled in frustration as the bell rang signaling that the 11:00a.m train left. An Empousa grabbed me by the throat, but grabbed one of my Stygian iron knives and stabbed it in the chest making it turn into golden dust. "Seriously Hecate?! I'm technically working for you and you can't even avoid them attacking me?" a thunder crashed in the sky and I groaned.

How am I supposed to get there now? Shadows! Gods, I can be so stupid sometimes I summoned the shadows to me and shadow traveled to the train, it was not wicked or scary as some people think, just dark, or maybe I'm used to it, I don't know.

I felt the shadows leaving my side I opened my eyes to see the red haired of earlier, a brushy haired girl with brown eyes and a dark haired boy with green eyes wearing round-rimmed glasses. They were pointing their sticks to me, I mean, wands.

"You?" the red haired boy asked.

"Me" I answered smirking, "May I sit with you guys? I don't anyone here, well except you that I ran into a couple of minutes ago, well I don't know you, but that's a start" I said and they seemed to get out of a trance, but were still pointing the wands "And I would appreciate if you could stop pointing your wands to me"

"Oh, I'm sorry, we just, we thought" the girl started, but didn't finish the phrase "I'm Hermione Granger" she said putting away her wand and her friend did the same, somehow she reminded me of Annabeth, maybe it was the know-it-all way she spoke.

"Nico Di Angelo" I introduced myself.

"You're not from here are you?" she asked.

"I'm American, I'm transfer student I explained.

"I didn't know that Hogwarts accepted transfer students" she said confused and the others nodded.

"I'm Ron Weasley" the boy of earlier introduced himself I turned to the other.

"Aren't you going to introduce yourself?" I asked and the others stared at me in shock.

"Wait, you don't know who he is?" Ron asked.

"If I knew I wouldn't have asked, would I?"

"BUT HE'S HARRY POTTER! THE BOY WHO LIVED! THE CHOSEN ONE!" Ron yelled and I covered my ears.

"I'm right here, you don't need to shout. And I never heard of him" I said simply "Let's start again, I'm Nico" I gave my hand.

"Harry Potter" he introduced himself and shook my hand. Oh, the Harry Potter giving my dad extra paperwork because of Tom.

"Now I know him. What about the boy who lived? It's not like everyone around you is the dead" as I said that I stared into his eyes, into his soul. Holy shit! I thought He has two souls inside of him!

I sat near Harry, as Ron was sitting next to Hermione, Ron was mumbling something that seemed like America, blame, doesn't know him, well not in this order. Hermione was staring at me with suspicion and Harry was deep in thoughts. The door of the compartment opened and a pale blonde boy stepped in, his face was dripping arrogance and I rolled my eyes.

"I'm Malfoy, Draco Malfoy" he introduced himself giving his hand, but I didn't shake it.

"I'm Nico Di Angelo" I said.

"So, are you a pureblood, half-blood or mudblood" he said the last staring at Hermione, I didn't know what was he taking about.

"I'm none of your concern" I answered and his face turned red in anger or embarrassment, or both. He left closing the door dramatically.

"So what are you?" Ron asked.

"Half-blood" I answered.

"Where are you from?" Hermione asked, I knew that she wasn't going to stop so soon with the questions.

"New York" well, part time in the Underworld, or at the camp, or travelling.

"Why did you transfer to Hogwarts?"

"My father and aunt said it would be better for me"

"Do you have any family studying here? Or that studied here?"

"My father, my aunt came and my sister doesn't even know about magic" well, part lie, part true.

"Oh, how did you do that? I've never seen a spell or charm like that one!"

"My father taught me"

"Who is he?"

"I don't like to talk about him" that came a little bit harsh. But at least she shut her mouth, she was becoming a bit annoying. I got my school robes from inside the bag put them over my clothes as the others were already in theirs.

"Hey guys" said a familiar dreamy voice opening the door of the compartment "Skull face?" she asked chocked.

"Hi, owl brain" I greeted Luna, a daughter of Athena.

"What are you doing here?" she asked and hugged her as she jumped in my arms, well, at least someone misses me.

"I ask the same"

"I study here"

"Transfer student"

"You dad?"

"And aunt"

"Hecate?"

"Yup" I answered and the others were staring at us like we were aliens.

"Guys, Nico is my cousin" and the others seemed to get out of a trance again. "Oh, gods! Neville will be so glad that you're here!"

"He studies in Hogwarts too?" I asked and she nodded. "Who else?"

"Dean and Cho" I was chocked, how come I never knew? The train slowed down and stopped "Skull face, welcome to Hogwarts" she said and pulled me out of the train.

I stared at a castle across a lake, Annabeth would have loved it, people started getting off the train and a half-giant came towards us I put my hand in my pocket to pull out my sword, but Luna held my hand and whispered.

"He's friendly, a teacher and protector of the school grounds" and nodded I nodded at this.

"You must be the transfer student!" he said with a strong accent. "Nico Di Angelo"

"Yeah" I answered awkwardly.

"You're coming with the first years" he said and I nodded and waved my hand to Luna and waved back.

"See you later cuz!" I yelled to her in through the crowd.

"You two are related?" he asked leading me to a bunch of eleven years.

"Cousins" I answered simply, the eleven years were getting on boats to go through the lake. "I can't go in there" I said.

"Of course you can" he said and I got in the boat reluctantly and dropped a drachma on the lake praying to my uncle not to drown me.

When we got in the ground I ran as fast as I could to as the doors where there was an old woman dressed in long robes and a pointy hat. The eleven years were still far behind and would take a couple of minutes for them to reach me.

"You must be Mr. Di Angelo, I'm Professor McGonagall, I know who you are and you'll be sorted with the first years by the sorting hat" she said and we still have two or three minutes.

"What sorting Professor?" I asked.

"We have four houses, Gryffindor for the brave and determinate, Slytherin for the cunning, clever and ambitious, Hufflepuff for the loyal, hard working and kind, and Ravenclaw for the smart and wise. Didn't the gods tell you this?" she explained.

"It was last minute conference, they didn't have enough time" I said and she nodded as the first years arrived.

"Please, follow me" she said loudly for everyone to hear.

(A/N: This description of the Great Hall I created based on the movie, so please, no flames) We followed her, I had to admit, the castle was immense, and beautiful, but nothing compared to Olympus thanks to Annabeth. McGonagall led us to huge doors, she opened and there was a big hall, nothing compared to Olympus though. We walked to the front of the hall next to a table with the teachers; there were other four tables, two on the left and two on the right, I could see Harry, Ron, Hermione, Neville and Dean sitting on a red and gold table. Luna and Cho were sitting on a blue and bronze table. I didn't recognize anyone else at the other tables, well, except for the arrogant blonde guy, but I didn't know him.

When I started paying attention on what was happening, blame the ADHD, I saw a hat, yes, a hat singing. When it finished an old man with the longest beard I ever saw in my life in light robes said:

"Let the sorting start!" as he said that McGonagall a parchment and started reading some names.

"Angeli, Daniele" a blonde girl sat in a chair and put the singing hat on her head.

"Hufflepuff!" it yelled and the people on a yellow and black table clapped and cheered for her sorting. I guess this was the sorting.

"Brito, Nathaniel!"

"Slytherin!"

"Caetano, Kate!"

"Gryffindor!"

"Carvalho, John!"

"Ravenclaw!"

"Now a transfer student from America! Di Angelo, Nico!" she yelled and I went to the chair and they put the hat on my head.

A demigod I see! A voice said in my head and I almost jumped from the chair Very smart, but not wise enough to be in Ravenclaw. Hard working and loyal, but only to the closest to you, and not very kind, definitely not Hufflepuff. Slytherin would fit you the best because of your father, and you're very cunning and clever.

DON'T SORT ME BY MY FATHER! I hissed to him on my mind

Well, I'll need to see your memories, but your blocking them.

You're not going to see them! I told him.

So you're going to be on Slytherin.

You want to see my memories? Fine, but you'll regret. Then I let him see everything. Everything, even the underworld.

"AAIEEEEEEEEEEEEEEE" it screamed when he saw the battle of Manhattan.

"AAIEEEEEEEEEEEEEEE" it screamed when he saw the second giant war.

"AAIEEEEEEEEEEEEEEE" it screamed at the memories of the underworld, but when he was going to get deeper I closed my mind again.

Enough? I asked.

"Gryffindor! The boy lived through a lot!" it yelled desperate to get of me. There was no cheering at my sorting, I only smirked.

"Where's the Gryffindor table?" I asked and everybody pointed still chocked to the red and gold table. "Thank you" I thanked and walked and sat near Neville.

"Hey, what are you doing here cuz? What did the hat see to get that scared?" he asked while eating his cereals, typical.

"Dad and aunt H sent me, although the whole family agreed with it" I said and served my plate, I saw a little fire and threw a part of my food in it making a prayer for my father, Hecate, Poseidon (thanking for not killing me) and Hestia.

"But what about what the hat saw. Crap! Did he see both of them?" he asked and I ate part of my food.

"Yeah, and my home" I said and he stared at me wide eyed "Don't get so chocked, it was the only way for me not to go to Slytherin because of my father"

"Yeah, but that place is wicked! You have to admit it, whenever I visited my m- you, your father almost killed me or scared the crap out of me" he stopped as we noticed everyone at the Gryffindor table was staring at us. Neville was a son of Demeter, her favorite son, so sometimes he visited her at the underworld when she is with Persephone.

"Nico, what are you doing here?" I heard Dean ask me.

"Seriously? I answered this question just a couple of minutes ago!" I groaned in frustration and I heard him laugh "Chill, man I heard, I was just being annoying."

"You and Leo are definitely brothers!" Neville chuckled.

"Maybe it's our good looks" he said and everything went silent, the whole Great Hall was listening o us, I couldn't resist, I busted out laughing with Dean and Neville.

"Very best of evenings to you all. Thanks. First off, let me introduce the newest member of our staff... ..." the old man with the long beard said "Horace Slughorn" as he said that an old man stood up and sat down again "Professor Slughorn, I'm happy to say... ...has agreed to resume his old post as Potions Master. Meanwhile, the post of Defense Against the Dark Arts... ...will be taken by Professor Snape" as he said that the Great Hall exploded in What? Snape?

"Snape? Now, as you know... ...each and every one of you was searched upon your arrival here tonight. And you have the right to know why. Once there was a young man, who, like you... ...sat in this very hall... ...walked this castle's corridors, slept under its roof. He seemed to all the world a student like any other. His name? Tom Riddle. Today, of course... ...he's known all over the world by another name. Which is why, as I stand looking out upon you all tonight... ...I'm reminded of a sobering fact. Every day, every hour, this very minute perhaps, dark forces attempt to penetrate this castle's walls and in the end, their greatest weapon…is you" he said and the whole hall was silent "Something to think about it. Now off to bed, peep peep" he said and everyone stood up ready to leave, I followed Dean and Neville who were silent.

So this is it, I lost this chapter and now I found it. I'm so glad! Please, review what thought of it!