Eris had always been prepared for such an adventure, having trained with her father for years once she reached 100 years old (preteen in Migardian years), but she would admit that she didn't exactly expect to see the place in person. As soon as noon came, the raven-haired female was dressed in her best attire, protected by some of Asgard's best armor, and blessed with her best weapon. This was her first fight outside the castle walls and she was quite excited.

However, she still worried about her sister. She knew one day Harmonia would have to fight in the future, but she just didn't feel ready.

Eris quickly met with her father and was currently walking along with Thor and the Warrior Three. They were quite surprised that Loki let his daughter join them since she was still quite young, but that just made Eris prouder.

"It's too dangerous for her!"

"She could get hurt!"

"She's a princess, not a warrior!"

Eris bit back the urge to say anything threatening. She has tried her best to be respectful to the men, but she hated how they doubted her abilities. Especially since she trained with Lady Sif.

"My daughter will stay by my side. She is capable of handling herself," Loki defended her.

Eris only smiled.

She walked silently by his side to the Bifrost. She knew getting past Heimdall won't be easy. Everyone was quiet.

"Keep your weapons sheathed and your mouths closed. This is going to take subtlety and sincerity, not brute strength. Let me handle this," Loki commanded as he stepped onto the Bifrost. "Good Heimdall-"

"You are not dressed warmly enough."

Loki was stunned. "I'm sorry?"

"The cold of Jotunheim. It will kill you all in time. Even Thor, and especially your daughter."

Eris tensed up a little, even glancing down at her own attire. Maybe she should have worn something warmer.

Heimdall continued to speak, "You think you can deceive me? I, who sees all? I, who can sense the flapping of a butterfly's wings a thousand worlds away?" His eyes then landed on Fandral. "Or can hear a cricket passing gas in Niffelheim?"

A small chuckle escapes the young girl's lips as Fandral tried to explain himself. She could have sworn that she saw his lips curl into a tiny smirk. Loki attempts to speak again but is cut off by Thor.

"Enough! Heimdal, may we pass?"

The gatekeeper stared him down. "For ages, I have guarded Asgard and kept it safe from those who would harm. In all that time, never had an enemy slipped by my watch - until this day. I wish to know how that happened."

"Then tell no one where we have gone until we return," Thor replied.

Eris was soon growing impatient as she listened to their conversation, though her mind wandered to her sister. She had a feeling that she would try to find them; she knew her sister well.

Once they have received access to the Bifrost, Eris glanced over at the gatekeeper, a look of worry crossed her face.

"Heimdal, I have one request," she started, then took a deep breath. "If my sister requests our whereabouts, please, do not tell her. I'd hate to worry her if she found out."

Heimdall nodded. "As you wish, Princess."

The raven-haired princess smiled as she is suddenly jerked off the platform.

"Father? Sister?"

The younger princess walked briskly through the halls of the castle, her eyebrows furrowed with worry. Her blue eyes frantically searched the halls, almost filling with tears, as she asked anyone who walked by where her father and sister may be. In fact, she didn't hear her uncle's voice ringing through the halls either.

"Dearest Harmonia, is something wrong?" a soft motherly voice caused her to stop and look up.

Her grandmother, Frigga, stood in front of her, offering her a kind smile, but her expression changed to worry when she saw the sadness and fear in her granddaughter's eyes. "My dear, you look terrified," she says as she kneeled at her level.

Harmonia embraced her grandmother, trying to hold back her emotions. She couldn't help that she was a sensitive person. She wanted to be strong for her father, to prove that she can also stand for herself one day, but her emotions hold her back.

"I...cannot find them anywhere..." she said, sniffling.

"Find who?"

"Father. I looked everywhere in the castle but didn't see him anywhere. And Eris was not with me when I awoke from my sleep. She promised she would stay with me..."

Frigga wiped away the young princess' tears, trying to comfort her as she gently brought her to her arms. She obviously knew of the strong bond that she and Eris shared. In her words, it cannot be broken, no matter what happens to them. Though she was curious as to where the sister had disappeared to.

"Have you checked the gardens?"

Harmonia thought for a moment. Usually, Eris would go there to train her magic alone. Maybe she went there?

The blue-eyed female smiled a bit. "Thank you, grandmother. I shall check there. Surely, she could be training, right?"

Frigga chuckled softly. "At this time, I am not sure, but it doesn't hurt to see for yourself."

Harmonia nodded, embracing her grandmother again in a loving hug before walking down the hallway again towards the garden. She had to be there. There is no place else she could be...

Unless...

Her heart sank.

She remembered that conversation with Thor and his plan to go to that place she dares not name. She couldn't have...

Could she?

She rushed towards the Bifrost, where she knew the gatekeeper, Heimdall, would be as always. While they never actually spoken to each other since she was younger, she knew she could trust him.

"Heimdall," she started as she stepped closer to him. "Please, tell me you know where my father and sister went..."

He glanced down at the young girl. "I am required to not tell."

A feeling of dread overcame her, but all she could do was sigh. "I knew it. I told her it was a bad idea."

" Do not trouble yourself, young one. I believe they will return very soon."

The young girl looked up at the taller male, a glimmer of hope in her eyes. "Are you certain?"

Heimdall only nodded, looking out into the world ahead of them. "I see and hear all."

"If you say so," Harmonia whispered, hoping he was right.