When Celestia throws the powers of the Elements of Harmony against Nightmare Moon, instead imprisoning her in the moon, they transport her to a different world inhabited by humans. The story will change for young Harry Potter when he meets the Night Princess. The two and their friends now embark to Hogwarts, not realizing the dangers and mysteries that await them.

An unusual dream awakens two princesses. One, having already gone through many adventures and troubles, preparing herself for the worst. The other, having grown in her frozen world, prepares to flee and know the rest of Equestria. When a real meeting in the Crystal Empire takes the two to meet for the first time, and the floating ship of Captain Black Eye returns to Equestria, the two princesses are about to discover a secret about their lives and the Mane 6 and some friends will embark with their new friend in a new adventure for cold valleys and heat deserts, against pirate ponies to recover the mysterious Eye of the Dragon and the seven parts of the Diamond of Destiny, before it falling on the wrong hooves, to keep Equestria safe. Wecome to My Little Pony: Sisterhood is Magic

This story is a sequel to Legends of Equestria: The Tale of Two Sisters

Vanilla is a young filly Pegasus from Sweet Island, whodreams to be a good flying racer, like her mother. But when she finds out Dusky Spark took over the kingdom from her father, she ends being pursued and fleeing to the mysterious Chocolate Rock Canyon, what she don't know is that Dusky is part of a dark conspiracy and isn't her biggest enemy. She want to defend her kingdom, but it's hard when you have just a few fillies against an army of changelings.

A tale of Celestia and Luna in their journey to free Equestria from the shadow of the Nightmare ponies. Their journeys since their parents' death to become rulers of Equestria, maybe even more. An tale of sisterly love and sacrifice, through the eyes of two young human sisters with a lost past and no aparent future. What has it to do with the royal sisters? Read and find out.