I walked towards her and explained what I had done, I did not want to keep it a secret from her. "Your grimoire has infinite pages, like mine. It will follow your command, much more cleaner than mine," turns out Pixie Dust being used for those arithmancy and runes helped with that. "You don’t need to worry about any sort of magical battery for it to maintain its float. It pulls some magic from the environment. Now the biggest thing."