Okay, sorry about the long wait! I've just been so busy lately, I've had very little time or energy to do this. But, I am determined to have this story reach its end. So, let's see where it will go from here!

Shadow Hooves went on her rampage across Ponyville. She stopped at Sugarcube Corner.

"No more baked good for anypony in Ponyville!" Shadow Hooves said as her horn began to glow.

She conjured an impenetrable shield around the bakery. Mr. and Mrs. Cake rushed outside, pounding on the shield.

"Hey, let us out!" Mr. Cake pleaded.

"Derpy, lower this shield, please!" Mrs. Cake added.

Shadow Hooves smirked. "That will not happen! You're TRAPPED! Aha ha ha ha ha ha ha ha!"

With that, Shadow Hooves left the Cakes alone and crying out for help. She passed by her house, and noticed a mailmare putting some letters into her mailbox.

The dark Alicorn scowled.

"Hey now! HEY NOW!" Shadow Hooves thundered at the mailmare. "No bills for me!"

Shadow Hooves levitated the mailmare, and conjured a magical prison force field that she remained hovering within.

"H-hey...! Derpy, let me down from here!" the mailmare said.

"No! You've brought it upon yourself!" Shadow Hooves taunted.

(XXXX)

Twilight and Starlight had made it back to Ponyville to find that Derpy had caused quite a lot of havoc. They had dropped Spike off at the castle, just so Shadow Hooves would not do anything to him.

Nearly every door and window was magically sealed, with some ponies trapped on the inside pounding on the windows, trying to break them to no avail.

"Ngh... we gotta do something!" Twilight said. "Derpy'll lay waste to Ponyville if we can't stop her!"

"Let's move a bit faster!" Starlight said.

(XXXX)

Derpy had a large crowd of ponies being held down to the ground in a red aura that immobilized them and caused them pain.

"Now... you will ALL pay for everything you have ever done to me!" Shadow Hooves declared. "You think I enjoyed being called 'wall-eyed whoopster' or 'foalbrain fodder'? You think I enjoyed taking the heat even after I offered to fix mere pony error? Well, let's see how you all enjoy your time in a dark, cold, uncomfortable prison! HA HA HA HA HA HA HA HA HA!"

"D-Derpy, please...!" a mare begged. "W-we're really sorry... about everything we ever did to you!"

"We really are!" a stallion added. "P-please let us go, and we'll never d-do anything like that again—"

Shadow Hooves scoffed. "I'm afraid it's too late for sorry! You only say that because I am a threat to you all! You will all suffer what I have suffered tenfold!"

Shadow Hooves increased the intensity of the aura, causing the crowd to groan in pain.

(XXXX)

Twilight and Starlight continued to check around to see the damage that Shadow Hooves had done, and if they could help anypony involved. They had just made it to the Ponyville schoolhouse, where a bunch of school-age ponies were all gathered, including the Cutie Mark Crusaders, along with Cheerilee.

"Twahlaht!" Apple Bloom said. "Whut's goin' on?"

"Yeah!" Scootaloo said. "Why's Ditzy destroying Ponyville?"

Twilight closed her eyes and shook her head. "Well... you see, Derpy's been overtaken by power from a dark spirit. Starlight and I are gonna find her and try to free her... as long as she doesn't put up any resistance, which is quite a strong possibility."

"But you think you can get her back to normal?" Sweetie Belle asked.

"Just leave it to us! You little ponies need to get inside and stay there until it's safe!" Twilight instructed.

"She's right!" Cheerilee said. "Everypony line up, single-file!"

All the colts and fillies did what Cheerilee asked, and proceeded inside the building. Apple Bloom happened to be right behind a very worried-looking Dinky Doo.

"Don't worry, Dinky." Apple Bloom said. "Ah'm sure Twahlaht will fahnd out how ta help your mom."

"What?" Dinky asked, looking back. "No! Ditzy's not my mommy!"

"She's not?" Sweetie Belle asked from behind Apple Bloom.

"No!" Dinky answered. "Why does everypony think that?"

(XXXX)

Shadow Hooves continued her wrath on Ponyville. She began to conjure black crystals at random.

"Time to build my own Crystal Empire!" Shadow Hooves said to herself. "I will avenge you, Sombra!"

"Oh, Deeeerpyyyy...!" came a voice from some distance.

Shadow Hooves looked in the distance to see...

"...Muffin!" the voice said. It was Twilight, hiding behind a building and levitating a muffin in Shadow Hooves' view.

Shadow Hooves immediately stopped her magic as her eyes went wide, and then a huge smile appeared on her face.

"MUFFIN!" Shadow Hooves said as she darted for the pastry.

Twilight quickly levitated the muffin where she wanted to lure Shadow Hooves.

"Get back here, you delicious friend!" Shadow Hooves called out.

Once she was in the proper place, Twilight and Starlight simultaneously fired magical beams at Shadow Hooves, encasing her in a force field. The dark alicorn mare looked around in shock, as she had not seen where Twilight and Starlight were hidden.

"Starlight... wait right here for a moment." Twilight instructed.

"Got it." Starlight responded.

Twilight stepped out and confronted Shadow Hooves, who made vain attempt to escape from the dome of energy.

"Derpy!" Twilight said. "It's time for you to surrender! Just let us return you to normal, and we'll let you be on your way!"

"Twilight..." Shadow Hooves began. "...why do you fear darkness? Why do you shun that half of magic all for the light? It is more powerful than you think! There is no 'good' and 'evil,' there is only 'right' and 'wrong'. Embrace the darkness with open forelegs! It is wonderful! It can give you more power than you would ever realize!"

Twilight scowled. "Derpy... this isn't you speaking! Sombra's corrupting you! He's bewitching you!"

"Twilight..." Shadow Hooves repeated. "...if one is to fully understand magic, one must explore all of its aspects! Not just the 'rainbows-and-sunshine' half of it! Join me, Twilight Sparkle, and we can become new Princesses to rule alongside Celestia and Luna! With our knowledge of the dark, Equestria could finally live in stable balance and true harmony between light and dark! We can make things the way we want them to be! Neither us nor anypony we care about will ever have to suffer again!"

Twilight pondered for a moment, but she made up her mind pretty quickly...

"...This isn't the way to do it, Derpy!" Twilight said. "You can't just go around punishing everypony for the things they did to you! Two wrongs don't make a right!"

Shadow Hooves scowled. "Suit yourself, Sparkle... you have sealed your doom!"

Shadow Hooves shot a dark-red energy beam straight at Twilight, but she was quick to react and fired a violet-colored beam right back. The two beams collided, creating a ball of pink light in between them. Both Alicorns struggled to push the other's beam back. Sweat rolled down their temples as they clenched their teeth.

"Starlight! I need your help NOW!" Twilight called over to Starlight.

Starlight quickly emerged and fired a cyan-colored beam at the collision point between Twilight and Shadow Hooves' beams. Immediately, the added power forced Shadow Hooves' beam back. No matter how hard she tried, she just could not overcome the immense power that the Unicorn added.

A look of intense fear filled Shadow Hooves' eyes. "AAAAAH! NOOOOOOOOOOOOOOOOOOOOOOOO...!" she shrieked.

Twilight and Starlight's beams met Sombra's horn, and a bright flash of light occurred, forcing Twilight and Starlight to cover their eyes. Jets of black light with red halos started flying off in all directions. Once the light had died down, the two saw the normal Derpy with a silver glow around her as she levitated, unconscious, before drifting to the ground, her glow fading as she touched down.

Sombra's horn levitated down right in front of Derpy, separated from her body. There were some scorch marks on both the base of the horn, and Derpy's forehead, but Derpy otherwise appeared to be unharmed.

Okay, so now that Derpy is back to normal, how exactly will she resolve the conflict that the other ponies have forced upon her? This is definitely going to be one of my shorter fics, since I have other ideas for future MLP fics. In the meantime, keep yourselves occupied while awaiting the 7th Season... and the MOVIE! Well, all in all, hope you all enjoyed this chapter! Keep holding on...