Nico's POV:

Nico hid behind the wall, trying to control his breathing.

It was hard to lie to low when the person you were hiding from just-so-happened to be standing on the other side of the building.

At first he hadn't noticed she was standing there because he was in such deep thought, but when he decided it was safe to leave, he saw her standing there and quickly hid behind the wall.

He really hoped that she wouldn't notice him standing there. Zeus knows what will happen if she did!

He waited for a couple of seconds, hoping she would have left by now and surveyed the streets for any signs of Thalia or the huntresses.

He caught a glimpse of her spiky black hair and knew it was her immediately. He was confused as to why she was still standing there after what felt like forever.

She seemed to be in deep thought, still staring at the wall she was pushed into by Nico.

She seemed tense. Her electric blue eyes were glazed as if she wasn't focusing on anything in particular. Her lips formed a straight line and her eyebrows were farrowed as if she was concerned about something.

Suddenly she snapped out of her trance-like state, her eyes shone with determination and her posture perfectly straight.

She said something to the huntresses and they followed her down the street and into a nearby cafe with much more enthusiasm than they had been before.

Nico stepped out of the dark alley and watched Thalia disappear down the street.

He was really tempted to follow her, but it just wasn't that easy.

He knew that if he did follow her that all the emotions he was trying to keep bottled up wouldn't stay bottled up any longer. But then again, he shouldn't have kept his emotions bottled up in the first place. It would just lead to a disaster waiting to happen, especially to the children of Hades. Or any other children of the Big Three for that matter. They were all well known for having their emotions taking control of them at the worst of times, and with how powerful they all were... It just wouldn't end well.

Or at least, that's what Bianca had told him the last time he had seen her before she had tried for rebirth.

Just thinking about his sister caused a wave of hurt to course through his body. Even now, three years from his sisters death, he still couldn't get over the fact that she had joined the huntresses and then sacrificed her own life for Percy and all her other quest members. She had barely even said a good-bye to him before she had left for her quest in the morning that day.

Nico still missed his sister and it hurt every time to even think about her. And he knew that he shouldn't be dwelling in the past so much, but he didn't care. This was his sister- his only family- and she had chosen rebirth over another chance at life with him. He just couldn't understand why she would do that.

But at least one good thing came from all of this. Hazel Levesque, his half sister-from the Roman side of his family. She was so young when she died sacrificing her life in order to save others. She had such a good heart, she deserved a second chance at life, especially when she had given up her own chance to go to Elysium so her mother wouldn't end up in the Fields of Punishments.

Beginning of Flashback-

Nico was devastated to say the least when he found out that his sister, Bianca Di Angelo, had chosen for rebirth.

He had really wanted her to come back to the living. He needed the guidance, and although he'd never admit it, he needed some company. He felt so alone being the only child of Hades thats actually alive.

He started making his way towards one of the exits, not feeling like he was in the mood to shadow travel, and tripped on a huge glossy black rock. Cursing himself for being so clumsy, he got up dusting himself off and found himself looking at a girl at around twelve or thirteen (he wasn't sure at that time). She had curly brown hair and kind golden eyes, something Nico had never seen before. She emanated power and some sort of warmth.

The girl looked up at him for the first time with a kind look in her eyes. "Uh, hi?"

Nico responded by asking who she was. He had seldom seen anyone that was actually polite in the Fields of Asphodels unless they weren't meant to be there in the first place but was afraid of being judged. Usually these people were meant to be in Elysium.

The girl told him her name was Hazel Levesque and to his surprise, told him that she was a child of Pluto. That had definitely caught his attention.

A child of his father's Roman aspect? He had never met anyone like that, especially in the Fields of Asphodels. They were usually in Elysium (and no, it had nothing to do with getting special treatment from their father).

Nico then had asked her why she was here.

She responded by telling him her life story of how she sacrificed her life to save others and how she gave up her chance at Elysium so that her mother wouldn't end up in the Fields of Punishments.

Nico felt bad for the poor girl. She went through a difficult life and died at such a young age. She sacrificed a lot of things to help others and she didn't even seem to expect anything in return.

At that moment, Nico made a decision. Hazel deserved a second chance at life and he was going to help her get it.

End of Flashback-

Hearing an angry growl from behind him, Nico turned around to face a harpy twice his size.

She had short glossy black hair and her wings were a dark shade of violet. Her talons were extremely sharp, much sharper than anything he had ever seen from a harpy before.

She grinned maniacally at him before lunging for his throat.

Nico, being the quick-thinker he is, took out his Stygian iron sword and dodged her. He swiped at her neck, hoping to kill her in an instant, but she was too quick.

She used her talons and swiped at his chest, leaving a nasty bloody scar under his ripped black T-shirt.

Nico looked down and saw that some of the blood had gotten on to his aviators jacket.

"Oh, come on! That was my favorite jacket!" Nico yelled out in outrage (Total Nico moment) and struck his sword right into the harpy's chest, taking in all of its life source with it and sending it back to Tartarus.

Nico dusted himself off and sheathed his sword, looking up to find the one and only...

A/N: I'm just going to leave it at that. I'm pretty sure at least half of you already know who it is if not more.

And as for how Nico met Hazel, that's just my version of how they would've met. I just wanted to put that in there.

Anyways, I hope you guys liked this chapter. Thank you all for all the favorites, follows and reviews!

Also, I'll try to update at least once a week!

P.S. I love the song 'Teenagers' by My Chemical Romance. Don't listen to the song if you don't like cursing.