The Shadow of A Tyrant

Months have passed ever since Sombra took over the Empire. He had enslaved the Crystal Ponies and made them fear him greatly. Those who attempted to rebel were executed by the king himself and the Empire fell into ruin and chaos as the enslaved ponies were forced into nonstop labor and mining.

Meanwhile, Radiant Hope arrived at the Castle of the Two Sisters, home of Princess Celestia and Princess Luna, Equestria's rulers.

"You must help me! The Crystal Empire is in danger! My lover has turned evil and has become the tyrannical ruler! Stop him please!" Radiant Hope begged.

"Don't worry, Hope. My sister and I will take care of the situation." Celestia reassured her.

"Come, sister! We must get the Elements of Harmony!" Luna commanded as she dashed off.

"Hope, you are welcome to stay in the castle if you wish." Celestia told her.

"Thank you for your kindness, princess, but I don't wish to stay." Radiant Hope sighed while putting up the hood of her cloak and leaving the castle.

The two sisters then flew away.

Later, in the Crystal Empire...

Sombra overlooked his kingdom and laughed manically as his slaves dragged mine carts filled with crystals.

"My crystal slaves...fit for a king! Nopony can stop me now!" He cackled.

"You're wrong, Sombra!" Celestia yelled as she and Luna flew over to Sombra.

"Yes, let the Crystal Ponies go free!" Luna added.

"No, princesses! I need more Crystals...crystals..." Sombra muttered to himself.

The princesses glared at him as the Elements glowed, their eyes turned pure white as Sombra stared in shock.

"No..." Sombra gasped.

Rainbows shot out of the Elements, surrounding the tyrant king as he turned into his shadow form.

"NOOOOOOOOOOOOOOOOOOOOOOOOOOO!!!" He screamed, being sealed into the ice of the Frozen North.

Once that was done, the Empire started to slowly fade away alongside the now freed residents of the Crystal Empire.

"Sister, what is this?" Luna asked in surprise.

"Sombra must have casted a curse on the Empire to make it disappear! Unfortunately, as much as I want to help them, we must get out of here!" Celestia answered.

The two flew off as fast as they could as the Crystal Empire and it's civilians disappeared, lost to history for a thousand years...