A country way past Saddle Arabia and across the sea, where the land of friendship and rainbows is a distant tale, welcome to Estrania. Valiant, a young stallion, will have his world introduced into a reality of vicious cannibalistic unicorns, disturbing boggarts, and alluring secrets.

When there is no mane six to save a country, it's up to the Haunts to keep the balance of good and evil. Yet despite how the Haunts keep the monsters at bay, they are a dwindling breed; why?