"Put me back on the walkway!" Isaac yelled as Sweetiebelle dangled him over the edge. "I'm sorry! Just put me back on solid metal! I wont laugh anymore!"

Sweetiebelle, with a serrated tooth filled smile, set the engineer down onto the walkway again. He scrambled back against the wall, putting a hand to his chest he shook the other at her.

"Never... Never do that again!" He yelled getting up.

"Will do," she saluted. "Does anypony else hear that? Like metal scraping against metal."

"Now who's the crazy one?" Isaac chuckled before stopping suddenly. "Oh shit..."

He ran towards the next door, tripping once and pressing the button. He spun around and saw Sweetiebelle handing Applebloom over to Scootaloo. Scootaloo trotted up to him while Sweetiebelle and Babs calmly began to trot over.

As the doors opened Isaac and Scootaloo took the first few steps inside when a sudden creak was heard. They looked back and saw the walkway begin to give out.

Sweetiebelle only managed to jump when it finally fell, she stuck out her Slasher and Stalker claws while trying to get a grip on the metal walls. Babs merely hung onto a rail. Seeing Babs, Sweetiebelle pulled her over and stuck Babs inside, wrapping around her like a jacket.

Isaac and Scootaloo watched the trail of sparks as the two ponies fell. It stopped, but the screeching could still be heard even after.

"Deja vu..." Isaac muttered before hearing a Feeder behind him. "And fuck you!" He ran at it leaving Scootaloo to deal with the Slasher that dropped down.

"When we get home," she said smashing it into a wall. "I'm using you for target practice, Isaac." She said.

Thirteen floors down.

Babs looked at Sweetiebelle as if she'd grown a second head. Sweetiebelle just stood on her hind legs, scratching away at the metal with tiny Stalker claws.

"Sweetiebelle..." Babs finally said. "Your not getting anywhere, you can stop now."

Sweetiebelle stopped and sat on her haunches. She looked around in the dark, sighing her eyes began to glow a dark red before turning into a fiery crimson. She looked over at Babs and saw the filly jump back slightly.

"Stalker eyes." Sweetiebelle said. "Come on, we need to find our way back up."

"Well," Babs said interrupting her. "Where are we first of all?" She shined her helmet's light around a few times before spotting a door ahead. "Hey Sweetiebelle, check this out."

Sweetiebelle trotted over and cocked her head to the side.

"Sewage treatment." She read in slight horror. "I have a feeling I'm not going like where this is going already."

Thirteen floors up.

Isaac slung the Feeder corpse to the side. Cracking his knuckles he looked back at Scootaloo and saw a Feeder carrying Applebloom.

"I still don't like that thing carrying Applebloom." He said glaring at it.

"It's under my control, it wouldn't do anything unless I told it to." Scootaloo replied. "Why do you hate these things, especially more than the other Necromorph's?"

"Well, because..." He shuffled his feet. "I have my reasons."

"Isaac," she crossed her fore-legs. "What happened?"

"Back in another apartment complex, on a different planet, there was another Necromorph outbreak. I destroyed the Marker with the help of," he laughed. "Get this, this prissy white unicorn. Yeah, she said she recognized me too, but I'd never seen her before in my life."

"Wait..." Scootaloo looked up at him. "Did she have a curly purple mane, a pure white coat, mention Sweetiebelle, and have three diamonds for a cutiemark?"

"...Yes." He shrugged.

Scootaloo looked ahead, her eyes wide and distant. She was in deep thought, mulling over the new information.

And then she began to laugh, clutching her sides as she smacked the floor a few times.

"You got help from Sweetiebelle's big sister! Rarity!" She laughed. "Oh, we've got to tell the others about this later! I've got to know how she reacted when she saw blood for the first time. Or if she was cornered and you had to save her."

"So that's what her name was. Oh, now I remember now...." Isaac smiled. "She was annoying as hell." He frowned causing Scootaloo to laugh even more.

He picked her up and slung her over his shoulder. He opened the elevator door and stepped through.

"If you want to know why I hate Feeders," Isaac said. "It's because they ate my goldfish." The Feeder stepped in carrying Applebloom. "Damn skeletons." He sneered at the Feeder.

Thirteen floors down. Sewage treatment.

"This place stinks." Babs said trudging around the large room.

"Atleast you have a suit. I have super-senses." Sweetiebelle scrunched up her nose. "I just hope we don't have to go up."

"What do you mean by that?" Babs asked sitting by a tank.

"Well, if the elevator is out, then it's probably smashed to bits down at the bottom of the shaft." She explained. "The only other option is to... Flush in reverse."

"Flush in... Now that's just wrong." Babs said shaking her head of the thought.

"Don't worry, I don't even know how to work these things." Sweetiebelle grinned tapping it.

At that moment, the light's turned on and the machines came to life.

"Renewal of sewage is now in process." Came an old electric voice.

"Ok," Sweetibeelle gritted her teeth in annoyance. "Maybe I don't have to know."

In front of them, the holding tanks were already filled to the brim with sewage. Sweetiebelle and Babs looked at each other before back to them when a multitude of gurgles were made.

A clawed hand rose out from the sludge and carved lines in the metal wall. Hoisting itself up, a head full of jagged and rotten teeth became visible.

"Oh come on!" Sweetiebelle yelled. "I have had enough!" She gave a roar shaking more of the sludge out as more of the creature's came out.

The first one climbed out, it had a holed fin on it's back. It's face was shown slightly more and it's mouth was a wrinkled ring spanning the entire length of its face except for the eyes. It's back legs were bent back and elongated to a Divider's length, the feet on it were curled up making two claws that resembled fins.

And it's hands were thirty inches of bone, held together to flex with a random bit of flesh.

"So," Babs Said taking out her Pulse rifle. "What do we call these?"

"How about Sludgecrutches?" Sweetiebelle suggested covering herself with bone plating. "Get ready, they could have some sort of-"

A screech was heard and one of the creatures hacked out a glob of brown sludge.

And hit the batlike creature above Sweetiebelle.

She looked up at the thing and saw it was what was left of a human head. The creature that shot it down quickly rushed forward and slung it back towards the others.

The creatures swarmed the small thing, ripping it to shreds before getting off each other and facing the two fillies again.

"Sweetiebelle," Babs said. "Do Necromorph's eat each other?"

"No... No they don't." She whispered in confusion. "So, what are these things then?"

The one from before leaned down and looked Sweetiebelle in the eye. it raised up and gave a few shrieks before backing up.

"What's it doing?" Babs asked.

"I don't know... Maybe it's friendly?" She suggested. "Um, excuse me, do you know how we can get out of here?"

The thing stared at her before tapping it's clawed fingers on the floor. It pointed one up at the ceiling, tracing it down to a pipe and then a tanker.

"So, that's a yes?" Sweetiebelle asked.

It raised and lowered it's upper body in response before giving another screech.

The other creatures surged forward, claws slashing wildly, Sweetiebelle charged her horn but saw the one behind her clawing at the tanker. She looked over at Babs and saw her wave from behind a pipe.

"You've got to be kidding me..." Sweetiebelle groaned as a wall from the tanker ripped off.

Thirteen floors up.

"And... Done!" Scootaloo grinned as the screen showed the circuitry had been moved correctly.

"Good, now come on." Isaac grumbled. "Oh, and sorry about the Feeder."

"It's alright," she grinned slightly. "There were a few of them. It's not like you knew."

"No."

"No what?" She asked. "Did you know where my Feeder was or did you not know?"

"Yes." He said picking up Applebloom before getting slugged under the chin.

Applebloom fell to the floor with a metallic thud.

"Get your hooves off'a me..." She waved at him. "Hey... Where's Babs And Sweetie...?" She asked stretching.

"They fell down a hole." Scootaloo replied getting a slight kick from Isaac. "What?"

"They what!?" Applebloom yelped. "When!? How!?"

"Just a while ago," Scootaloo said. "We were crossing this metal walkway when the walking part gave out, crushed the others beneath it and Sweetiebelle was sliding down the wall leaving sparks. We're... Not sure where they are at the moment."

"Hey girls, and Isaac," Babs said over the comms. "Um, did you all happen to feel the ground start to shake?"

"Babs!" Applebloom yelled linking up with her cousin. "Babs! Behind you!"

The creature behind her swerved around, arms out ready to slash.

"Oh, you meant him," Babs chuckled. "He's not actually a Necromorph... He's... I don't know. But, he is friendly, him and the others are helping us get out. And Sweetiebelle... She's... Well she doesn't want to talk about what happened."

"Don't worry," Isaac said. "I'm sure they have everything under control." He said to Applebloom. "You do have everything under control? Right?"

"Yeah, yeah were fine." Babs nodded. "We should probably go, I think Sweetiebelle's is waking up."

She cut off the link leaving them in silence.

"Well, atleast she's safe." Scootaloo smiled patting her friend on the back. Applebloom fell forward and didn't move. "And she's out again..."

She picked up Applebloom again with a slight grunt. She gave a nod to Isaac and he stepped forward.

Isaac opened the door and they were met with another area of corners. He took the open route and raised his gun as two Slasher came swiping at him.

The pipes rattled on the wall and in an instant, a brown sludge erupted from them and cut the Slasher's in half. It died down to a simple gurgle exposing the damage.

"Isaac, Isaac what the hell was that!?" Ellie yelled over the comm. "The toilets just went off like geysers!"

"Well, isn't this some-"

"Isaac, I swear to Celestia if you finish that sentence." Scootaloo warned.

"...Shit!" He laughed as she punched him lightly. "I'm sorry, but most of my jokes are a bit crappy!"

"He's just full of bull-"

"Shit!" He laughed. "Oh god, it smells horrible!" He began coughing alongside Scootaloo. "Oh, god, it burns! Who had the nerve not to clean out the latrines? This shit is over four hundred years old. I think I'm going to-" he folded his helmet up and leaned over the edge.

"It's in my nose! It stinks worse than Tartarus!" Scootaloo said curling up on the floor.