Her royal highness, princess Celestia, has eyes set on one studious, purple mare. As an opportunity emerges, she finds a way to show just how caring the teacher can be to her most faithful student.

Twilight rediscovers a forgotten plane of existence. Who are the darklings? The ancient shadow awakens as it threatens to swallow Equestria. The crazed Queen, imprisoned and bound in the moon is about to return.