When Autumn Spice has two new additions to her family the pink Pegasus is delighted , she didn't expect them to grow up and nearly destroy the Universe.

Her sister, Grasswhistle, discovers it first.

Her younger sister feels unaccepted and runs off into the Everfree forest.

Her younger brother follows her….

As they did, weird things start to happen to Ponyville…Such as Grasswhistle and Autumn Spice need to get get their siblings.

But as they see them…There so…So different.

They have to go threw a series of challenges to reach a place deep into the forest.

A special lake, not the mirror pool, deep than that…

This lake glows a different color due to each moon change of the season…

They have to convince their siblings to come to see Twilight to change them.

There siblings names are: Acoustica and Lazi