Disclaimer: I do not own Harry Potter or PJO, HOO, and Trials of Apollo full rights go to the authors J. and Rick Riordan

Chapter VI: Who Are You?

Nico's POV:

Nico was in the Room of Requirement, planning. It was a similar room to the second time he went in it. A table covered in maps, blueprints, and schematics. Bookshelves with books that could rival the Athena cabin, and a fountain making a rainbow.

Every night, Nico made sure to send an IM to camp, usually to Will. They decided that when the time came for a war, a few campers would come to Hogwarts, and together they would announce their parentage.

That day, Nico was trying to find a way to protect the castle with its many entrances and secret passageways, when he heard a bang, and the door was opened. Hastily Nico put on his jacket to cover up the scars and closed a book he was reading in greek.

Ron and Harry were standing at the door, with identical looks of shock on their face. There was nothing there that led them to believe that Nico was a death eater, even though he had powers. Unlike the time they saw Nico in the hallway, there were no dummies disassembled across the floor and no lava rock wall. The only thing that stayed the same was a small fountain making a rainbow in the corner.

Nico looked from Harry to Ron, and at their wands pointed at his chest, "What the Hades!"

"What?" Ron looked dumbfounded, "What the what? You're supposed to be- what?"

Nico instead turned to Harry, who seemed to be able to close his mouth, but just barely, "What are you doing here?"

Harry swallowed and walked into the room, pulling Ron behind him, and shutting the door, "We thought that you were a death eater spy, and we came to stop you." His voice gained confidence as he talked.

He raised his wand back to Nico's chest but faltered. Nico was doubled over in silent laughter. When he caught his breath he looked at Harry and Ron. They had identical looks of disgust, fear, and stubbornness on their face. Nico started laughing again.

When he finally could stand up Nico looked at Harry, "A death eater? Who would want to eat Thanatos?"

Ron looked at Nico than asked, "What do you mean? Who is Thanatos?"

"Um- I can't tell you."

"Why not?" Harry still had his wand pointed at Nico.

Nico walked up to Harry and gently pushed his wand down, without breaking his death stare, "I just can't."

Ron walked past Nico and Harry to the back of the room. He looked at the diagrams and blueprints of the castle. "Are you trying to attack the school?" Ron was staring at the papers, trying to read the Greek lettering.

"No, I'm not. I was sent here to protect it."

Harry and Ron looked skeptical but didn't say anything. Nico looked at an empty corner of the room. When he blinked three chairs appeared there. Nico walked over to them and sat in the one closest to the door. Harry and Ron, following his lead, sat down in the other two. A table appeared with drinks for all of them. Nico picked his up and took a sip, looking at Harry expectedly.

When neither Harry or Ron said anything Nico spoke up, breaking the unnatural silence, "Well how much do you know?"

Ron shook his head, and Harry said, "Apparently… nothing."

Nico released some of his aura, and felt the fear seep into the two boys bones, Ron whimpered, "Nothing really."

Seemingly satisfied Nico hid his aura, and glared at the boys, "Okay then, leave and stop bugging me."

Harry got up to leave, and Ron followed him, Nico saw both boys take a last glance of the room, before shutting the door behind themselves.

He ran over to the fountain and threw in a golden drachma, "Oh Iris, goddess of the rainbow, please accept my offering and show me, Annabeth Chase, at Camp Half-Blood"

The rainbow flashed and showed Annabeth, in full battle armor her hair muddy with twigs sticking out at odd angles. Nico could see the forest around her and a small command table, not unlike the one next to him in the Room of Requirement.

"Sorry Annabeth, is this a bad time?" Nico asked timidly.

Startled Annabeth looked around her, before spotting Nico through the Iris-Message, "No, just capture the flag."

"Oh, I need your help."

"What is it, Nico."

"Well, there are some nosey kids on my quest, and I think they are close to finding out about us."

"Okay… well, what do they know."

"I don't know, one of them is smart, really smart. She hasn't confronted me yet, but the other two came up to me and accused me of being a death eater."

Annabeth tried to hold in her laughter, but failed, "Death Eater, who would want to eat Thanatos."

"I know, but in this world, they are dark wizards who work for Tom Riddle, otherwise known as Mold-a-wart, or Voldwarts, or something like that."

Annabeth was confused at Nico's explanation of the Dark Lord, but went with it, "What do you want me to do about it?"

"I don't know, I just need advice, on how to get these people off my tail."

"What is your cover story? From what Will tells me, most people start at that school when they are 11."

Nico blushed at the mention of Will, but continued, "I told them that I was a transfer student from an American school, that focused on elemental magic. Like controlling shadows, or water, or lightning. Stuff like that."

"I think you should-" Nico heard cheering off in the distance, signaling that the game was over. Annabeth hurriedly told Nico her plan, "Tell them that you go to a summer camp, and that you learned sword fighting there. Then tell them that there are some people who really don't like the camp director, and he told you to be careful. Bye." Annabeth slashed her hand through the mist, leaving Nico alone in the room.

Sighing, Nico folded up his maps and plans. He put them in his bag, and walked out of the room, into a vast but not empty hallway. Harry turned to Nico, they were also, and out of earshot of any teacher or students.

"Who are you really," Harry was growling, and his wand was at Nico's temple.

Looking slightly amused, Nico leaned against the now bare wall, "Nico di Angelo."

Harry pushed his wand in harder, and spit in Nico's face, "I saw you talk to Snape. You have a sword, and spend almost every night in the Room of Requirement. I saw you coming out of that room, sweating with cut up training dummies, and scars all over your arms. Who are you?"

"Fine, I go to a summer camp, where they teach us how to swordfight. There are a lot of people who really hate our director, Mr. D. He told me to be careful when I came here, so I train most nights."

"What were you doing today, it wasn't training."

"I was sent here to protect the school and to take down Tom Riddle, or Voldwarts or whatever you call him. I use that room to make plans, like protecting the entrances. Or blocking off secret passageways in and out of the school."

"How do I know you're not lying?"

"You don't. I would tell you to ask your precious headmaster, but he has killed before, so I wouldn't trust him."

"How dare you expel-"

Nico cut Harry off with a quick jab to his jaw, Harry stumbled back, barely holding onto his wand. Nico kicked him in the stomach, and Harry's wand clattered to the ground. Yelling Harry ran at Nico, who bent his knees and dropped into his fighting stance.

The fight was over before it began. Harry tried to punch Nico's face, but Nico blocked each blow. With a small grunt, Nico kicked Harry's legs out from under him and held his forearm to Harry's throat. Pushing down Nico's eyes lit up with a murderous rage. Feebly Harry tried to fight back, pushing at Nico's arm. The small boy showed no signs of relenting.

"NICO!"

The boy in question seemed not to hear the voice behind him and pushed even harder on Harry's through, strangling him.

"NICO!" The voice was desperate when it whispered, "Bianca."

Nico let out a roar of pure, unbridled rage as he turned around to face Severus Snape. His attack was sloppy, and the older man blocked each desperate punch and kick. He didn't fight back, instead caught one of Nico's arms and reached for the other one. Snape looked almost bored ducking under a punch. He still held Nico's arm but was not hurting him. It looked like he had to do this a lot, dodging the messy attack, and finally pushing Nico against a wall.

"NICO, CALM DOWN!"

Nico stopped fighting, and looked at the man restraining him, "Sev?"

His voice was weak, and sounded like he hadn't slept in a week when the potions professor replied, "You told me you could control yourself."

"Oh, gods what did I do?"

"You nearly KILLED Potter."

"Is he alright?"

Harry sat up, still on the ground and gently cleared his throat, "Barely," He sounded as if he had just been strangled. (Wow, I wonder where that came from.)

A purple bruise was starting to form on Harry's throat as Severus started to release Nico. After an uncomfortable silence, Severus spoke, "Potter swear on the River Styx that you won't tell anyone about this, even Granger and Weasley."

Harry looked confused, but said nonetheless, "I swear on the river sticks-"

Nico looked up from his shoes, "Styx."

"Styx, that I will not tell anyone about this," Harry glanced at Snape, then continued, "Even Hermione and Ron."

Severus straightened his robes, and took a step back, "Good, now 15 points from Gryffindor each, for fighting in the hallway. And detention for both of you, two for you Nico for nearly killing a fellow student. Off to bed."

When the pair got to the Gryffindor common room they found it mostly empty, the only two people were Ron and Hermione's sitting in threadbare chairs near the fire.

Hermione gasped "Harry what happened to your throat?"

"It was nothing," Harry murmured.

"I was just helping Harry, he asked me to teach him how to fight without a wand," Nico cut in.

"Oh," Ron didn't look satisfied but stopped asking about it.

Harry swayed then started walking to the staircase, "Well I'm off to bed, goodnight."

Ron followed Harry up the stairs and Nico made follow them, but Hermione stopped him, "Nico, can I have a quick word?"

"Sure, what is it, Hermione?"

"Well-" She waited until the two other boys were out of earshot, "Who are you?"

"Nico di Angelo."

"How old are you, Nico?"

"Well, that's a little rude."

"How old are you?"

"Why do you need to know, Hermione?"

"In a muggle newspaper, a boy, Nico di Angelo, was mentioned. The newspaper was published over 80 years ago. Was that boy you?"

"What if I told you I was?"

"I would ask how you still look 16. ( I don't know how old the Wizards, or Nico are, so I'm going with 16)"

"Hermione, you live in a world of wizards and witches, and you are saying that there is no way for someone to look different than their actual age?"

"No, I know there are ways, but why would you use them to get back into school?"

"I didn't have a choice."

"Why are you here Nico?"

"My father sent me."

"Who is your father?"

"I can't tell you."

"Why can't you?"

"It's complicated."

"Why should I trust you?"

"You probably shouldn't."

"Nico, are you a Death Eater?"

"No Hermione, I am here to take down Tom Riddle. I am here to protect the school."

"Oh," Hermione's cheeks flushed red. she turned on her heel and practically ran up the stairs to her dormitory.

Nico also went off to bed, and like every other day he spent at the castle, checked for his dagger under his pillow, then laid down in bed fully dressed on top of the covers.

Nico saw a snake. It was slithering through a dark hallway, The hallway was tiled a black that seem to absorb all the light in the area. The snake hissed, but continued to moving to a door at the end of the hallway. Its forked tongue flicked out tasting the air, before the door swung open. There was a red-headed man sitting there sleeping, his robes looked old and tattered. The snake hissed one last time before moving to the man at an ungodly speed.

The snake attacked, biting the man until he was knocked out and covered in blood. Nico recognized the wounds as poisonous and even in his dream state, he could feel his life for ebbing away.

Dun dun dun!

If you didn't get the last part, it was Nico's version o Harry's dream about Mr. Weasly. Constructive criticism welcome. Also if anyone wants to continue the story in their own way, they are welcome to. Just make sure to credit me for any chapters you use.

I will try to post the next chapter tomorrow of the day after, (7/30 or 7/31.)