Incubus

Applejack flung her hindlegs out, bucking a cultist against rough, spray-painted brick. She clicked on over as he reeled back from the utter loss of breath. Though he flailed himself about wildly, bucking or slapping her with his hooves, Applejack was a veteran unarmed specialist. She employed an elbow block, fracturing his right forehoof. His exposed chin let her throw a compact uppercut, knocking him unconscious with a loud 'smack.' Her partner gently trotted out of the darkness and levitated him into a nearby police vehicle. Twilight Sparkle rubbed the back of her mane, inquiring the suspicious nature of the officer's generosity.

"Are... are you sure you don't want us to come with. We're interrogation specialists, you know. Maybe you could use a free hospital pass, too?"

As much as she wanted to, her friend simply refused. She enjoyed her last cigarette for the day, blowing smoke in a slow, steady stream. Officer Doo slid her baton up for easier reach, forcing the holster to clip near the ribbed bludgeon grips.

"It's fine, Twilight. I'm not a little flower like I used to be, you know. You've got all sorts of crime in Cloudsdale. But the Ponyville Department told me they could use a senior for Everfree Border Patrol. Don't worry. I got them. If they run, I still have my 'οικογένεια' right here." Derpy answered, smiling crookedly and glancing at her nightstick.

"She helped me find Scootaloo and kick some drunk ass a while ago. Hasn't failed me since. You take care, Twilight. I'll make sure to lock these ones up in different stations."

The policemare settled into a carry, effortlessly transporting a rather heavy and bulky stallion over her shoulder. Jacquelyn could barely believe her eyes. Once upon a time, that same, grizzled cutie with a badge and killer takedowns used to be her mailpony. She even had that eye problem, so it was even more juxtaposed. In a matter of minutes, the police cruiser set off and returned to Cloudsdale, shrinking silently into the skyline. The elements of harmony took their leave, speaking in mumbles Derpy couldn't hear at her altitude. She glanced back at the unconscious freak in her back seat, glad they were behind iron. The clouds were busy with flight traffic that day and the hoof-insert steering in her cruiser was still new tech. She'd grazed a few flyers from sheer inexperience, even working up a tiny swear here and there.

A firm, ear-shattering smack woke the cultist from his nap. He writhed and struggled, fighting the chains he'd been bound by. Not even his unicorn magic registered, his horn locked into some sort of mechanical, thimble-shaped contraption. He grunted between his teeth when his sheathe was slammed by a buck to the groin. Officer Doo struck him across the cheek one more time, forcing him to spit some teeth away.

"I'm not telling- not telling anything, you bitch-!"

She struck his snout with a half-elbow straight. He spat where he could, just barely grazing her chest coat in his blurry daze. The imprints against his snout said... she wore hoofwraps. Specifically so she could beat the shit out of him, probably. His gums were rife with leaking, salty tastes, following the overflow from his nasal blood. He gargled on his own filth before hacking it up and hissing.

"O... okay... Okay whatever you want. I... I'll tell you." The colt groaned, whimpering as his sheathe ached in pins and needles.

Officer Doo pressed his head against concrete walling.

"Tell me why you were after Sweetie Belle. Tell me now."

He inhaled sharply and stuck a few, painful breaths down his throat. She stared as he started coughing some sort of chaotic, disjointed rhythm. Then, the presence of froth erupted from his throat. However, despite that, he panicked when he realized the taste of his bubbling suicide pill. It was just... soda. The mare switched out his cyanide capsule. Officer Doo battered him against the wall till he finally collapsed and fell apart.

"Shit! Shit! No more! I-it was their family, okay?! They're related to someone! If you ask anyone back from Sombra's f-fucking rule, they'll tell you he looked just like her! Because they're descendants, okay?! We were trying to wipe out the- the last of the Sombras...!"

She slipped away from him as her eyes went wide and her blood ran cold.

All she could do was stumble over to the nearest phone and dial. Every inch of her body was unstable, even the bones rattled in the recent revelation. It wasn't her. It wasn't Rarity, right. That didn't mean anything. So what... so what if she was related to a monster. Blood didn't make somepony a monster, right. Right...?

"Hello?" Twilight responded.

"T-Twilight...! I... I got a new lead..." Derpy whispered, barely choking out the answer.

"I know why they killed Sweetie Belle."