"I can explain," Bianca told him.

"You don't need to," Nico replied. Percy entered the room at that point and stared at Jason and Thalia like he recognized their faces but couldn't place them with a memory or a name. Then he noticed Nico and Bianca and decided it would be best to leave the sibling rivalry to them and get to work on releasing Jason and Thalia.

"I know that you chose to be reborn," Nico continued. "I know that being a daughter of Hades gives you certain privileges with this, like being able to choose a new body to posess. I know you want that body to be Thalias. I know you were willing to torture one of my best friends to get what you want. And I know that I am not going to let you do that. Bianca, you don't belong in the land of the living anymore, you've been dead for five years."

"Nico, I need to know that you are safe in this crazy world that we live in, and how can I do that unless I'm living in that world with you?"

"You tell me! You're the one that left me alone in that world when I was 12 years old Bianca."

"Nico..."

"Don't 'Nico' me, just let me take my friends home and I swear on the River Styx that I will stay safe in this crazy world I live in."

"Nico, I can't do that."

"Yes you can. Leave here and go back to Elysium Bianca and make sure I never see you again, you are a disgrace to the Di Angelo name."

"Okay, You're right, I took this too far." When Bianca reached the door, she turned towards her little brother "And Nico...?"

"Yeah?"

"I'm sorry, I love you and I never meant to cause you any pain, can you forgive me?" The look in Bianca's eyes told him that she meant it, she was sorry. And he knew that one day, he would forgive her, but it wouldn't be today. His sister left before he got the chance to answer her and Nico was left with two recently freed demigods and Percy Jackson.

The three demigods and the huntress left the Dungeons with Percy and Thalia carrying Jason between them and Nico led the way acting as a guard whenever something unpleasant came at them and slowly they made their way to the door of Orpheus.

Thalia made the three boys swear on the Styx that they would never tell anyone she could sing after the door had opened on the third note and they unwillingly obliged.

Once they had left the underworld Percy revealed that he remembered the Grace siblings now. Nico explained that the reasoning for that was that it was Biancas powers which blocked his memories of Jason and Thalia and her powers were only effective in the underworld. So now that the Grace siblings were out of the underworld, peoples memories of them were no longer blocked.