Though most view them as simply immortal powerful rulers, some ponies worship the Princesses as actual Goddesses. Some families with deep Earth Pony roots worship the old Nature Spirits of their ancestors.
But some ponies turn to darker forces. They worship monsters and demons, praying for plagues and misfortunes upon those they despise.

One day, Discord finds out that in his "extended absence", a cult formed with him as the Central Deity. Unfortunately, it's not exactly what he would want. These ponies will soon find out it's a bad idea to anger your god.

Edit 5/18/18: New cover art courtesy of the illustrious Mix-up. Check out the original here.

Following the Tirek incident, Equestria is once more at peace and festivities abound by ponies grateful for their freedom. Princess Twilight Sparkle and her friends have perhaps the greatest deal to celebrate, especially with the key-bearers who helped them to access Rainbow Power.

So Twilight decides to spend quality time with Discord—lord of chaos and final key-giver—investigating the Tree of Harmony, and the two friends must learn to work together towards a common goal while coming to trust each other. But friendship is not always easy, and when a struggling Discord receives a visit from a shadow that claims to be Tirek and threatens to destroy the mane six out of revenge, it tests their newly forged bonds and reveals many ancient secrets along the way.