The mirror to the world of CHS was not the only mirror portal. It was just one of many, including one to an alternate Equestria.

Celestia once made a trip in the interest of knowledge and learned something not quite what she thought she would.

And the cost was heartache.

Shipping: Celestia x Alternate Universe Sombra

A gift for Lotus Moon.

Hit popular stories 10/27/17

King Sombra never enslaved the Crystal Empire. Instead, he chose to join his best friend, Radiant Hope, in Equestria while she studied under the Royal Sisters. With the sins of his past haunting him, Sombra decides to spend his time training to face whatever Hope will as she ascends the Throne.

(This is based off of FIENDship is Magic #1 First chapter contains a rundown of the events of the comic, save for the end."

Part of a series of companion fics to each of the "Fiendship is Magic" comics.
Fiendship is Magic #2 Fanfic (Tirek) : Madness for Power
Fiendship is Magic #3 Fanfic (Sirens) : Music Wars
Fiendship is Magic #4 Fanfic (Nightmare Moon) : For the Love of a Nightmare
Fiendship is Magic #5 Fanfic (Chrysalis) : The Need for Change

As Sombra pens the final words in his diary, the pony sisters descend upon the kingdom, and the shadow king prepares to meet them. Ascending to the throne room from his study, Sombra reflects on his plans, his feelings now, and the final fear he shall instill in the crystal ponies that will endure in them for a thousand years and beyond!

The thousand years passes, Sombra is defeated, and whatever is left of the shadow king reflects on his fall at the hooves of Twilight and others while he waits...and waits...and waits...for the inevitable defeat of light by darkness.

And back in the past, just after the Crystal Empire's banishment, Celestia and Luna tearfully try to come to terms with Sombra's curse and how the news will affect Radiant Hope. Luna in particular does her best to make sense of the madness.

"I'm just a beast. There's a darkness rising from the east. The darkness is me. It's what I always wanted to be."
~Aviators, "Undead"
Aviators Bandcamp