Dried entrails streamers. Bright pony skulls painted blue, pink, and purple were on the ceiling. Tables and silverware made of bone. Heads of foals laying right next to them. Red letters that read as "Life is a party" painted on the wall. The stench of rotting flesh mixed in with the scent sweet cupcakes a certain hyper pink pony made. These were the few properties that made up the basement of the bakery called Sugarcube Corner. However, none of this affected the courageous forest green pony.

So her observations were correct! Months before, she had conducted a hypothesis. The sudden disappearance of multiple ponies had not gone unnoticed. It was like they vanished into thin air, never to return. This curious pony, called Test Tube had concluded they had been killed. Who else would do it but the unstable Pinkie Pie? All the ponies had gone to Sugarcube Corner before their death. When the adventurous Rainbow Dash was gone, it had caused a uproar in the small town of Ponyville.

Test Tube's curious nature brought her to the basement of the bakery. Pinkie Pie wasn't home, making it safe to explore. "Hm. Now if I could get my hooves on a body..." she murmured. Her voice was thick with a strange accent. She continued rummaging through every corner of the room. Sure, she almost got her body parts sliced off by sudden traps, but it was worth it. Unlocking a rusty iron door, there laid three bodies, all in horrid condition. When the green unicorn stuck her tongue out in the air, she felt the metallic taste of blood dance on her taste buds.

One unfortunate pony had all her beautiful pelt skinned off. Her horn was chipped off, and her once elegant mane was ripped off and was used as a streamer in the previous room. Test Tube also noted that her cutie mark of three diamonds were gone.

Another pony had her gold-like eyes scooped out. Her once gentle green pelt was barely recognizable anymore. This time, her horn was still intact, but her body made up for it. One leg was ripped off, exposing a saw still dug into bone. Her tail was cut off, and was stuffed into the pony's mouth serving as a gag. Her intestines were wrapped around her neck, either to suffocate her, or to serve as a weird scarf. Who knew? You could never tell with an unexpected pony like Pinkie Pie. Test Tube recalled her cutie mark of a harp to be glued to the wall as decoration. Lyra was it?

She glanced at her own cutie mark for reassurance. She would never want her mark of a scientist to be removed from her. Finally, her eyes shifted to the last pony. Rainbow Dash.

She was in good condition, considering that Pinkie Pie had sown all the broken skin shut. Still, her flank was coated in the scarlet liquid. It was something she would be able to fix. Test Tube knew what she was about to do was horrible, but it was going to be better for the remaining citizens of Ponyville. The unicorn rapidly stuffed the pegasus into a body bag she brought. "5:00 P.M." She glanced at a nearby wall clock. Not good.

"Who's there?" A squeaky young voice called.

Thump.

Test Tube broke a sweat. Don't go in here! She prayed silently.

Thump.

She heard footsteps climb down the stairs.

Thump.

The door opened. The young pony...Applebloom? No, a pony like that couldn't be in a place like this. Applebloom went on to sharpen a knife, while humming a sickly tune.

All you have to do is take a cup of flour,
Add it to the mix!
Now just take a little something sweet, not sour,
A bit of leg-just a pinch!

Killing these ponies is such a cinch,
Add a teaspoon of blood~

The earth pony walked toward the room in which Test Tube was taking refuge. Test Tube wasn't scared. Being scared served no purpose. Being scared only slowed you down. Why should she be scared anyway? She could escape anything with the agility that helped her evade the multiple traps throughout the basement.

Thump.

"Oh! Test Tube! You came just in time for cupcakes~" Applebloom cheered gleefully with a evil feeling in her eyes. She raised the knife.

"Fuck no!" Test Tube huffed. She wasn't going to die, not today. And most certainly not by a tiny pony such as Applebloom. She reared up on her hind legs and punched her attacker in the mouth with all the force she had. Everything went into slow-mo. She felt blood well up onto her hoof, and saw Applebloom's eyes were now the size of dinner plates. The smaller pony staggered backward and made a muffled noise. The blood in her mouth kept her from saying anything, making anything she said incomprehensible. The knife hit the cold floor, making a chime-like sound. Bloody teeth followed the knife, each one dropping down like flies. However, she didn't give up just yet. The earth pony charged at Test Tube, biting down onto her hind leg.

Thump.

"I'm not done!" The unicorn screeched. She bucked the pony off with great force, causing her to hit the already bloody wall. The wound slowed Test Tube's speed, if the body bag wasn't enough. Before Applebloom could react, she stroke down at the hay-colored filly. Each blow she made at the pony's neck only became stronger. Test Tube's bushy hair whipped into her eyes, disabling her eyesight. Not that it mattered. She continued to throw punches wildly. She didn't stop until she heard a sickening crack. She had succeeded in breaking Applebloom's neck. "Sorry Applebloom. We can't have a murderer on the loose, now do we?"

Thump.

As soon as Test Tube looked down at her hooves, she instantly regretted killing the pony. Instead of seeing forest green, she only saw scarlet. Applejack would be crying for weeks. The thought of the good-willed farmer's reaction pulled on her heartstrings. However, it was for the better. She quickly washed her hooves in a nearby sink, and continued her escape. Her home was on the edge between Ponyville and the Everfree Forest. It was a simple home. It was like the majority of the other ponies' homes. It was a humble oak tree with a couple of windows. Test Tube dashed into her home, and locked her door with the security system she had designed herself. Only when she laid down the body bag in her living room, she realized something. The thumping was her heart.

A/N: Ta daaaa. Yes, Test Tube is my OC, but you already knew that, didn't you? Please critique my work. Its my second fanfiction, and I would love to know what I can improve on :3

This idea just popped into my brain when I was in Taiwan :D