King Sombra has returned.

Nopony was expecting the Elements of Harmony to find him in the snow, much less Prince Shining Armor, current Captain of the Crystal Empire Guard. But… there's something off about him.
Why does he refer to himself as Somber Heart? Could he really have forgotten about his tyranny?

The only question Somber Heart wants answered is who this mare is who carries an uncanny resemblance to his former fiance, Sapphire.

This is a story of nightmares and shadows, of fear and acceptance. This is the tale of a grand return, and a deep revenge.

This is the return of the Nightmare. And a nightmare is always stronger in the shadows…

Image provided by DeluxeMagnum69
Inspired in part by this song.