Etheria book 1: Dawn of The New Multiverse

This is the story of Lily and her cousin Megan, who is her dark incarnation. The two princesses fight across the Multiverse, in search of the essence to unlock the power of the Etheral Gem, which will give its user the ability to make any whim, no matter how good or evil, come true. Rated T for darker tone in the future, but nothing too extreme. Gets kind of canon divergent.