User blog comment:Mectrixctic/Nightmare Epic- Begining/@comment-1378255-20100426022143

Temporarily though, shes pretty frail and weak compared to her father. Nightmare would be done with her pretty fast.

Celeste should help the good guys for a good portion of the story until before the Super Nightmare part where he needs someone to protect his suit until he can get to the King of Sorrow, where he will scare people away so they won't hurt "The innocent little girl".