A/N: Thank you all for the lovely follows, favorites, and reviews. The action starts in this chapter! I know it's not nearly as long as last chapter, but that is probably going to be the longest chapter in this whole fic.

Disclaimer: I seriously keep forgetting to do one of these. DX Okay, in case I keep forgetting, if you think I own PJO or Frozen, I've met bread smarter than you. And if I owned either, there would be several changes made to both...

Elsa tossed and turned in her bed. She couldn't sleep. She had an idea on how deal with this shock of insomnia, but wasn't sure she should follow through with it. Elsa didn't want to leave her room for the first time in five years, and go into Arendelle castle's library. There, she would find all of the books on Greek mythology in possession of the castle, and look for a god or goddess of ice and snow. Elsa had decided that there were two ways for her to convince herself that she was a Greek demigod. The first was if she came across the god or goddess of ice and snow, either in person, or in the book she was reading. The second was if she was able to cross the property line of Camp Half-Blood. Really; either one would work for her.

Well, reading about a god or goddess of ice and snow would require descriptions of their powers, and Elsa would compare her powers to the descriptions. And hopefully the descriptions would tell her how to reverse the effects of her powers. Such as how to retract it, how to prevent it from coming out, and how to control it.

Elsa reached under her pillow and touched the Stygian ice dagger that Nico had given to her about a week before; on her birthday. She admitted to herself that she was afraid that it might cut her or impale her in the night, or that it might cut or impale her pillow while she was asleep. Elsa had an idea. She pulled off the wool gloves that she wore at night; for bed. She gripped the blade gently and carefully as not to cut her hand. An ice sheath formed around the blade. Elsa pulled the dagger out of the sheath that she made, and examined her work. She decided that the inside of the sheath could be improved. She carefully put a thin layer of frost around the inside of the sheath, to protect the dagger's blade. She immediately felt happier and more at peace with herself. It felt as if the storm inside of her had lessened—but only a little. It was just enough to help Elsa realize something. If she used her powers more, maybe she would be happier. Maybe it would finally stop the storm raging on inside of her.

But then, Elsa remembered that her powers were dangerous and needed to be controlled. She put her gloves back on, and the dagger into its sheath, and back under her pillow. She tried to go back to sleep, but she couldn't shake the feeling that she should get out of that room.

The moonlight peeked into the room from around the curtain over the windows. She crawled out of bed and softly walked over to the window seat. Elsa knelt on it, and opened the window, letting the moonlight into her room. It temporarily blinded her, but she merely blinked hard, and then she was able to see outside. Elsa noticed the colors immediately. The northern lights.

"The sky's awake." Elsa whispered, placing a hand against the glass of the window. She smiled.

Meanwhile, Nico was following a trail of frost late at night. He was following it for two reasons. The first was that he might be able to help Elsa if he found out who had created it. The second was that it was summer. Ice forming a trail in the woods, out of the blue, in July was kind of suspicious.

Nico stumbled into a clearing. It was a winter wonderland. A thick layer of snow covered the ground, bushes, and trees like a large white blanket. Frost coated all of the trees and bushes. A pond off to the side was frozen at the surface. The ice was apparently thick and solid enough to skate on, because a girl with black hair wearing a blue and white skating dress was figure skating like an Olympian athlete on it. The moonlight turned the snow blue, and the ice silver. The girl spun on the ice. You could see where she had been skating. Snow fell gently and silently, but there were no clouds.

Nico tensed. The girl stopped skating, and turned to face him. Her eyes were dark. Her skin was as white as the snow at his feet. In her black hair was a tiara made of what looked like ice. It was modeled to look like snowflakes. Her cold eyes analyzed Nico, as if she were looking to find that something was wrong with him. He placed a hand on his sword, which was hanging by his side on his belt.

"Let go of your sword. There will be no need for it." The girl said, smiling. There was no warmth or even pretense of warmth behind the smile. Nico obeyed, his hand dropping to his side, despite him wanting to be ready in case this girl turned into a monster. "I just want to talk to you about your… friend… Elsa."

"How do you know about her?" Nico snapped. He was extremely protective of Elsa since they understood each other, and had a lot in common. They were a salvation of sort to each other.

The girl smirked and laughed. It, like, her eyes and smile, was cold. She waved her hand and the skates disappeared; leaving her with white Greek sandals. Her dress turned into an ice blue and white Greek style dress. The tiara stayed on the top of her head and did not change. A cape, coming from the back neckline of the dress, formed. It was ice blue, and had had snowflake detailing. It looked as if it were created from millions of tiny bits of ice, which it probably was. The girl stepped onto the snow, creating ice where she stood. She was still smirking coldly.

"That one's easy, Nico di Angelo." She replied. "Elsa is my daughter." She held her hand out; palm up. She created a bit of snow; kind of a plume. Her smirk widened. "I gave Elsa power so that I will be known more. Once people meet her, and they hear that she is my child, I; Khione, the goddess of ice and snow, will be known throughout the world. I shall have worshippers finally." Nico bit his lower lip and then ran his tongue over his lips; moistening them as he thought for a moment. Then, he laughed. Khione's dark eyes narrowed as she strode over to the son of Hades. "How dare you laugh in my presence?!" She snapped, her lips contorting into a scowl.

"It's just…" Nico snorted, trying to stop laughing. "Elsa lives in Arendelle; an isolated kingdom in Scandinavia that is cut off from the modern world. She's stuck in her room. I'm her only friend. Only three people that we know of know that she is a demigod, and only two know that she is your daughter." Khione's eyebrows furrowed.

"Who are these people?" She demanded.

"Well, the three that know she's a demigod are you, me, and Elsa. The two that know Elsa's your daughter are the two of us. Your own daughter doesn't even know about you." Khione was seething. Clearly, Nico had infuriated her with his brutally honest words.

"Nico di Angelo, son of Hades, I will curse you!" Khione snarled. "I will freeze your heart. You never be able to give love, as long as your heart is frozen. Until your little crush on Perseus Jackson has been admitted, and he returns your love; in the same amount, no love can get in or out of your heart. Neither Aphrodite nor Eros can thaw your heart for you. Only equal love for your on Perseus's side can thaw your frozen heart. I shall also curse my own daughter. She will fall in love a little after first sight, and then her heart will freeze. Only true love will freeze her heart. The same rule applies to thaw her heart." Khione smirked. Nico's eyes widened, and he gasped. How did she know about his feelings?! Why would she curse Elsa too? Then his face went slack.

"Please; don't do that her. Elsa didn't do anything to deserve to be cursed." Nico pleaded. He couldn't help but hate the fact that he was doing this to Elsa. This was his fault.

"She made friends with you; that's enough to deserve punishment in my mind. Anyway; she is my daughter. I can punish her however I see fit." Khione said coldly. "My mind is made up, son of Hades. You're beyond the help of the gods now."

Khione fired a flash of whitish-blue energy at Nico's chest. The light was a blast of her powers, and when it hit him in the heart, he felt a wave of freezing cold wash through him and settle into his chest. It was enough to make him collapse to the ground. The goddess and her little winter wonderland vanished at the right second so that Nico fell in a fetal position on dead grass. He was alone in the warm summer woods; once again. He panted, and was able to eventually stand up with the help of his sword. Despite the warm night, Nico felt cold. He had tied his aviator's jacket around his waist, due to the heat, but he put it on again; zipping it up to his neck he began to walk; clutching his frozen heart.

A/N: Thank you for reading! If you liked it, please favorite or follow if you haven't, and also review. If you're gonna freak out over anything that I put in there that you didn't like, LET IT GO.

I'm in a really good mood right now. I spent a lot of time with my crush yesterday. :) I think I love her.