Nico:

I finished inspection and headed back to the Big House.

"Did you find anything?" Mr.D asked me.

"Yeah." I told them. "I think I know who the demon is."

"Who?" Chiron asked.

"Percy." I told them. "He has all the equipment, things to torture angels, mortals, us. Tyson mustve built a basement for him, not knowing what he'd do with it. There was a portrait of Percy with demon eyes down there."

"Well I'll be dammed..." Mr.D said. "You think you can take care of him?"

"I can handle it." I told them. "I set a little trap for him. It'll activate after dinner."

After dinner I sneak into the back of Percy's cabin before he left. My only problem would be I knew Grover, Tyson, Jason, Frank and Leo would be coming back with him for guys night. I'll be there, too.

Taking care of the demon.

They all walked in. I was hiding so I could see them. Devils trap on the ceiling. Jason, Frank, Tyson, Leo, Grover... Got by fine.

Percy couldn't get any farther.

"What the?" Percy said and it doesn't dawn on him that devils trap.

"How...?" Grover said and they make a line, trying to get him out. Not looking up, which is when I came out. A demon blade and a colt in my jacket, my arms crossed.

"Don't even try." I told them. "It won't work."

"Nico?" Frank asked. "I thought you were coming later."

"And how would you know?" Grover asked and I pointed up.

Percy and everyone looked up.

"What is that?" Tyson asked. "I didn't see it before inspection..."

"You little shit!" Percy realized what was going on.

"What?" Leo asked. Thinking he meant him.

"Not you." Percy told him. "Him. The little shit that rigged my cabin."

"Why would you do that?" Jason asked me. "I mean considering everything."

"Fun fact." I told them, walking out. He had also had two of the tablets down there. I took them both. In my coat. "Tyson, you built a basement kind of thing here, right?"

"Yeah." Tyson told me. "Percy said he needed one. Why?"

"Do you know what he used it for?" I asked and Percy was fucking livid right now although silent.

"Storage or something, right?" Tyson tells me.

"Far from it." I told them, taking out the demon blade.

"Nico, what are you doing?" Grover asked. "You're supposed to kill monsters and evil spirits. Not demigods.'

" that's what I'm doing." I told them as I but the tip of the blade under Percys chin.

"Now you son of a bitch.' I said. " I'll give you a choice. Get out of my friend and leave forever. I'll let your little boss know about it. Or I will stab you straight through with this. The choice is yours."

Percy store me in the eyes, fear in his eyes. He opened his mouth and then shut it. Looked down for a moment and then back up.

"You wouldn't do it." Percy. Or whatever the demon inside of him was spoke to me. "You couldn't kill me the first time. You let me go the second time."

"Yeah. You're right." I said. "I wouldn't. Back then. But you've summoned the one person I can trust. And when you fuck with what I have, it ends ugly, buddy. Just like the Winchesters."

"Percy, what is he talking about?" Grover asked.

"That's not Percy." I told them.

"Yes it is." Percy told me.

"You're not Percy." I told the demon. "You're using him as a meat suit and took up his identity. There's a difference."

"Meat suit?" Leo said. "So like possession."

"It's not-" He tried.

"Exactly.' I said.

"Let me talk." Percy told me. "I am Percy. I am not possessed. You don't need to kill me."

"Then where the hell is the demon?" I asked him, upset as the others backed away.

Hed regret it. But if he didn't do it, he knew I'd kill him.

"Can't you fucking see?" Percy asked me, raising his voice and his eyes went pure black. "I am the demon, Nico! I've been waiting for years for some hunter or an angel or some shit like that to show up and do this. Maybe I didn't expect it quite like this. But I knew it was coming. I'm not using somebody as a meat suit. I'm only 17. So back off."

The others ran out to go get Mr.D and Chiron.

"Back off?" I asked. "Percy, why the hell should I? You're a fucking demon! A work of hell!"

"Yeah, because I got that choice." The demon commented. "Nico..."

He walked away from me, facing the door, leaning up against it.

"What?" I asked him.

"Nothing." He told me, turning back around. "Absoulutly fucking nothing. You wanna know why? Because you wouldn't listen to it anyway, you're so set on one little thing."

"Tell me." I demanded as I heard a few campers come over hearing the commotion.

"No." He refused. "I know how that ends. I tell you, you act like you're interested, but instead you just kill me! I've seen it done before, alright! The Winchesters and their little friend, Castiel, did that to my mom when I was 4. I was lucky enough to have Ruby take me in until fucking Sam found her and the wars started and Crowley had a nice person take care of me. Using my mother's body."

Clarisse, Rachel, and Annabeth busted in through the back.

"What's going on?" Annabeth asked. "And don't say nothing. We heard the shouting."

"Nothing to concern you three." Percy told them. When he heard the door, he changed his eyes back over to their normal, dreamy....

Shut up. He's a demon.

"Oh really?" Rachel asked. "Why is there a devils trap on the ceiling? I'm not stupid."

"Well you know... If a demon or whatever comes in it can't leave." Percy made the excuse.

"Oh really?" Clarisse asked. "Then come here."

"You come here." Percy said and they walk into the circle and back out.

"Now you do the same." Clarisse said. "Take a step out. We already did. Your turn."

"Yeah Percy." I said, taking a step back. "Your turn."

He glared at me.

"I really hate you right now." He told me.

"Any day now." Annabeth said.

He can't get out.

"Now leave Percys body." Rachel said.

The spirit leaves. Percys body limp and the spirit went inside Annabeth. Her eyes black and for a second it was a little shock.

"This is..." She said. "What the fuck. Why didn't I go into Nicos body?"

"That's offensive." Rachel said.

"Wasn't meant to be sexist." She said. "Sorry I'm not female and that's the first time I've done that..."

"Inhabited a woman?" I said.

"No, leave my own body." She said. "Somebody get it out for me."

"Nah."

Back into his own body.

"Now that I have a headache." Percy commented, back into his own body. "I've proved my point, haven't I? I'm not using a meat suit. This is my body, Nico. Can you let me out?"

The three girls left as Mr.D and Chiron walked in.

"No." I told him. "Percy, bottom line is, you're a demon. We can't have that in camp. Especially one with such a rank. Born info it or not, I don't care. You leave or I kill you. I suggest option one and make your way back to hell."

"I'm not leaving." He told me. "If I go, so do you. You're just as bad. King of Ghosts, right? And you got your choice."

"That different." I said as they leave, alerting the other gods.

"How?" Percy asked me. "You'd kill Crowley if he stepped in here. He's your boss, I know that. You might not be a demon, but you're a minor king just like the King of gods is Zeus to all the other gods. He's their boss. If anything, if I'm killed, you should be, too!"

"Percy, do you realize what you are?" I asked him and started shouting again. "You're a fucking demon! Can you just get through your head!? You're no hero! You're not a leader! You're a demon! An evil spirit!"

I wanted to cry saying it. But... A jobs a job.

Percy shook his head, biting his lip he then looked down, and then at me with his beautiful-

Nico, shut up.

"Then stab me." Percy told me, holding back tears. "Okay? Just end it. Because now I bet Tyson fucking hates me. The camp is bound to turn on me. My dad never cared. My mom was killed. Just fucking end it already if this is how I'm going to be treated!"

Tears started to roll down his face as he fell to his knees.

I wouldn't.

I can't do it.

I don't care. I can't. And I won't.

At that moment, I had heard my mom's voice. I heard Bianca.

Don't think. Don't even consider. Just kill it. It makes it so much easier. Just remember. It's evil. It's bad. A demon is a demon. Simple as that. You kill it and don't think twice.

But this... He's my friend. He's the only person I can still trust. I don't know if I can trust Hazel even. Or my dad. Or anyone else here.

I love him. I can't lose that.

And he spoke.

"Give me the blade."