A New Guardian? Or an Old Friend? (Rise of the Guardians Fanfic)

Description: The Guardians gets a message from Manny about how a new potential Guardian was in trouble. They didn't know where this Guardian was, but they could all feel that there was fear surrounding this Guardian. When they find this Guardian, they are all shocked. How, you may ask? That isn't for me to tell. This is the story of Guardian who is new and old. Meet Nyx Luminoso, a Spirit of many things, but the Guardian of Balance.

Disclaimer: I don't own Rise of the Guardians, I only own my character and this story. May contain some colorful language and OOCness. I think that I may add a crossover or two towards or at the end like bonuses, because why not.