War for the Skies (completed) (Book 1 of the Heroes of the Realms series)

(Hope you enjoy this Percy Jackson and Magnus Chase fanfiction. It's kinda jumbled up between them, and I hope you have fun reading!) My name is Leon Brooks. I never asked to be special, and I never was. Until that faithful day, when the storm hit, and I was sent to the Mountains of Despair. I never knew my journey wo...