With the reach of Equestria, friendship, and harmony growing ever further, Klugetown was the exact opposite of a calm island in a wild sea. It was a deep, dark cave in the middle of a serene forest. Within that cave, a mountain was formed.
On the eve of Nightmare Night, Rainbow Dash is attacked by a mysterious horde of monsters and forced to flee her home. Even with Twilight's help, the situation soon grows dire.
After being charged with assault, young Gusty Breeze is released into the care of an estranged aunt. The last thing she wants is to get in trouble again. Unfortunately for her, circumstances have other plans.
Some heroes are born, and some are forged. Some are forged in flame, and some are forged in one cold night of tragedy. She is the shadow of justice, the Masked Marauder, the Nightmare Knight. Let Eclipse City's evildoers beware.