DISCLAIMER: I DO NOT OWN HARRY POTTER OR PERCY JACKSON.

AN: ATTENTION PLEASE! DO NOT CONTINUE ON WITH THE STORY UNLESS YOU HAVE READ THE NEW FIFTH CHAPTER! IT IS TITLED 'WE GET HELP FROM AN OLD GUY ' AND IT IS ON HERE! PLEASE READ IF YOU HAVEN'T! THE REST WON'T MAKE ANY SENSE IF YOU DON'T READ IT. THANK YOU.

Harry POV.

Nothing dastardly new happened here. It continued to be quite as normal, except for the fact a boy happened to be missing. But something extraordinary happened today that really sparked this whole investigation.

It was late, around midnight, and I was stuck in the library searching for a book I needed for an assignment. I didn't have time to finish the paper, and it was due tomorrow, so I had to go to last resort and go to the library where nobody was watching. Or I thought so.

As I scanned book after book, tracing the titles on the spine, none of them pleasing my interest. It was dark, and the only light came from my wand, which was still dim to not disturb anyone. The light illuminated my face, bouncing off my glasses.

I sadly didn't hear quiet footsteps that carefully got louder as it approached me. I was too intent into the books to notice a dark haired figure bump into me, causing the both of us to fall to the ground in a heap.

My wand fell and rolled further away as the sound of papers being flipped and slapping against each other in a pile. I rubbed my head and thought to run. If it was a teacher, I didn't know what kind of trouble I could get into.

But as the other slowly picked himself up, as if he couldn't carry his own weight, I realized it was a boy my age that I have never seen in my life.

Now let me say. I know many people, and almost all the students in the school, and so when I noticed he didn't look familiar, it struck a chord. I wiped the outside of my glasses, with them still on, and got up. I slowly inched towards my wand while the other boy was still trying to get up.

"Who are you?" I whispered, pushing out my wand and carefully holding it in front of me. The boy gathered his books and was standing, facing me. I brought my wand closer to see his face to see it better, observing the details of it.

He had black wind swept hair that now looked messy and soiled, like he ran his hand through it more than was necessary. It was also pretty greasy in a sense. He had sea green eyes and a tan like skin color. He was wearing a robe just like me, and books were held messily in his arms.

His eyes flashed some fear, but he had a steady gaze on me.

"I can't tell you." He whispered back, almost in a scary manner. His eyes danced in the light and kind of beckoned me in.

"Why not?" I gave him a suspicious glance. Was he an intruder? I saw from the corner of my eye the boy slowly crawling his hand into one robe pocket. I knew he was going to brandish his wand, so I tried to stop him by saying so.

"Don't take out your wand. Who are you? I've never seen you before." That's when his eyes widened and looked to my right hand where the skull ring was. His eyes went to slits in a second and his body started shaking in anger.

"Where did you get that?" He growled through gritted teeth, his body positively shaking. He could drop his books any moment with his movement. He looked like a walking earthquake with a face.

"Why does it matter?" I managed to snap back. Why did he care what I wear? I didn't even know him.

"It belonged to my friend! He went missing. Did you kidnap him!" The boy had a furious look in his eyes, and I knew it would be deadly to taunt him.

"What are you talking about?" I stared at him in confusion, an eyebrow raised, till it dawned on me. The boy here was looking for the missing boy as well. The one in the newspaper. Does that mean the boy is here, at Hogwarts?

"Wait, stop." I said, holding my hand out as he was about to advance on me."I'm looking for the missing boy as well, the one you are looking for."

The black haired boys eyes widened while his body slowly stopped shaking, but he still had a suspicious look in his eyes. "Y-you're looking for Nico too? But...how?"

"Yes. I read an article in the paper about him. I found it that I should help him. My friend's brother sent us the ring in a package. Nico, that boy, apparently dropped it before he got abducted. Why are you here anyway?"

"Oh, sorry. That makes sense. I'm here because he happens to be at this school, so I came with my friends looking for him. I-I'm sorry, I'm Percy Jackson. I'm here in secret to look for Nico. I'm was just angry because he wore that ring. I thought you kidnapped him."

"That's okay. I'm not surprised that you were suspicious. I would have felt the same way. I'm Harry Potter."

"Nice to meet you Harry. So, since we're on the same goal, shouldn't we join up? You know, to help each other out?" Percy asked, out of the blue. I thought about it, then nodded. It was a bit of an outgoing question, especially since he thought I kidnapped his friend, but I think the boy needed quite some assistance, for this wouldn't really be easy. It's never easy to find a missing person, because this school was huge, with vast rooms and secret passages. Nico could be anywhere.

"It would be best."

"But you can't tell anyone about me, okay? You can't tell anyone. This will be secret, okay? It would be also good not to tell Dumbledore that you know about me. When it seems important, we'll tell them, okay? I don't want to risk anything." I smiled and agreed.

Every other night since then, we joined up and met at the library, searching for Nico. His friends were looking elsewhere in the school. They split up; in hopes to find him quicker. He told me about his life, and about pretty much had small talk almost every night till we started getting used to each other. I told him about my life, and about my friends. We agreed to just meet at midnight because he would have small private lessons with Dumbledore before then. This went on for about three day and all was good, till we got the bad news.

AN: Like it, hate it?