"I wonder what it says?" Sweetiebelle thought as she opened it.

"Dear Isaac and Sweetiebelle, it has come to my attention that Sweetiebelle has come into "contact" with the necromorphic plague. Isaac and Sweetiebelle, please report any suspicious behavior, moods, thoughts or actions. Alex.

P.S. Isaac, please don't dance again. Leave that to Applebloom."

"I don't remember him being so insulting towards me." Isaac said.

"Isaac, I actually feel fine. Aside from an itch on my nose that's it." Sweetiebelle shrugged. "Let's get out of here before the power goes out again."

They all nodded in agreement before crawling in the vent and back out.

Applebloom was about to destroy the circuit’s when Sweetiebelle stopped her and sent another bolt of electricity at them.

They passed the malfunctioning AI and proceeded through the door where Isaac had a body fall on him.

"I hate it when that happens." He said kicking the body away.

They were in a new hall way, blue light's same metal walls and the necromorph body parts moving around on the floor.

"Isaac are those...?" Scootaloo wavered off.

"Go ahead; I need a little something to wake me up."

She grabbed him and started to chase the small body parts around, making sure not to hit hard but hard enough to kill the things.

The head kept jumping at her but the third swing she got it and sent it flying across the hallway.

"Well, that woke me up. And Purée the eggs I ate earlier." Isaac said getting up.

A small screen with Ellie and Stross, who was sitting in a corner, came into his view.

"Ellie. I'm on my way to the mirrors now. I have to realign them manually. How's Stross?"

"See for yourself."

The video zoomed in on Stross as he was talking to himself.

"No. I'm not ready for the needle again! You have to let me out! I can't breathe! Let me out!"

The camera went back to Ellie.

"Stross, what's wrong? Ellie?"

The camera went back to Stross.

"He's... waiting... for... me!" Stross panicked.

The camera turned off and they were left in the darkness.

"Ugh... Isaac, we have more of those Cyst things." Applebloom pointed out.

He looked ahead and saw more of the flesh lumps lining the floor and walls.

He looked around and saw a small green box laying on the floor. He picked that up and shot it at the Cyst. It exploded in a geyser of yellow fluid.

They made their way past the others, often just killing them on sight.

"I still hate those things." Applebloom said as they went through the doors.

"Quiet, do you hear that?" Sweetiebelle shushed them. "Listen."

They all stopped, silence filling the room. And silence until Isaac spoke.

"I don't hear anything." He said.

"They're in the vents. Watch." She pulled out her Contact beam and charged it, fired it and got a kill. "How could you not hear them?" She asked incredulously.

"Because, they were on the other side of the room in the vents. Applebllom, Sccotaloo could you hear them?" Isaac asked.

They shook their heads.

"I guess sensitive hearing is a side-effect. Come on, let's head up." He said leading them to the arrays.

Scootaloo made quick work of the panel and they went in fast.

They went to the door at the end of the hall and opened it to find Nicole standing there.

"How do you do it? How do you hold it all inside, your face never betraying your pain? No one would ever know the guilt you feel-"

"Actually I can relate." Scootaloo raised a hoof.

"Never know the dark thought's-"

As she rambled on, Scootaloo grabbed Isaac, Sweetiebelle and Applebloom before teleporting them all out into space.

"Ahh! What happened!?" Sweetiebelle yelled.

"I teleported us out." Scootaloo said.

"Alright listen up," Isaac said getting their attention. "All of you stick with a buddy and do not take your helmet off."

"Actually I could take my helmet off and be perfectly fine." scootaloo said.

"Just don't. Now, do the rest of you understand?"

They gave nods before he waved them to follow him.

He slowly glided up to the first solar panel. He stuck out his palm and slowly moved it towards the non-lit panel. When it touched the panel it lit up and sent a beam of light down towards the middle chunk of the arrays.

"Alright now to get the other one."

"Isaac, there's a problem." Scootaloo said poking him in the side.

"What?" She pointed to a large white fleshy growth on the arrays walkways. "Oh, what is that?"

"It's called a Nest." Sweetiebelle said getting looks from the others. "I memorized the list."

As they approached the second panel it opened up exposing three fleshy bulbs and a swarm of jellyfish like necromorph’s heading their way.

"Don't let them hit you!" Isaac yelled before he got hit. "Don't do what I just did!"

"Ya don't have to tell me twice!" Applebloom yelled back.

Scootaloo and Sweetiebelle were flying up to the second array unnoticed. Scootaloo started to pull the array down and as she was connecting it Sweetiebelle pushed her out of the way and began firing at the Swarm where Scootaloo was.

"Thanks." Scootaloo said.

"No problem. Let's kill that thing and get Isaac and Applebloom."

They flew over to the still dodging engineer's and started to fire alongside them.

"Hey Isaac! I think now would be a good time to let me just get that thing." Scootaloo yelled.

"Just do what you need to do!" He yelled back dodging another three of the necromorph's.

She undid her helmet and flew down as fast as she could. She landed at the base of it and wrapped her tentacles around each of the buds before squeezing. They popped much like the Cysts only leaving the yellow fluid and the lump of flesh.

As she flew up to her friends a bright light went off behind her. As she turned she saw a large yellow beam going down to the station.

Isaac's screen came into view with Ellie and Stross both looking panicked.

"Holy shit Isaac." She said.

"Ellie? Ellie are you alright!?"

"We just made it into the crossover tube when the beam hit! Isaac, those things are still heading for the Transport Hub. They're wreaking everything in their path!"

"Oh shit. They'll cut us off! Get to the hub! I’ll meet you as soon as I can!"

The screen turned off and he pointed back to the small elevator where they entered at. They all quickly got on and started to run, even going as far as trying to pull the door up.

"Ellie! Come in!" Isaac nearly yelled into his comm.

"Isaac! We have to cross the Government Sector before they cut us off! You'll never make it down here in time!"

"I'll be there! I'll be there!"

"Instability detected in the Array alignment. Emergency ejector systems initializing." Said an electronic voice through Isaac's head set.

He turned to the crusaders, all of which were looking at him expectantly.

He looked back to the booster and then back to them.

"Have any of you ever been on a roller coaster before?" he asked with anything but mischief in his voice.

They all shook their heads as they saw him get into the chair.

"Get on. And turn on your boosters when we launch." He said.

They all ran and jumped onto his lap where they sat back.

The machine lifted them all up and then pointed them sown, the jets fired and they were speeding ahead at atleast thirty miles an hour before it broke off and they all turned on their boosters.

They sped along faster than anything the fillies’ minds had known.

A building came flying by; they swerved to the right and let it pass. A large chunk of rubble came next that collided with the beam and was either blown to bits or disintegrated.

The crusaders made a mental note not to hit that.

Another building coming up on the left nearly hit them as they flew in the broken cone of it. And then a massive chunk came passing through their field of vision. They slowed down and went through the hallway in it.

Another building came from the left as they watched a small light grow brighter.

"Aim for the light!" Isaac yelled over the comm’s.

They straightened out and made a line directly towards the light.

There was a crash and soon they were all hitting against the walls and occasional vent of the shaft.

Isaac turned on his thruster and cracked the marble flooring as he landed one hand on the ground and one leg on the floor while the other was facing forward. Applebloom landed next, she landed on all fours with a solid crack as the marble web-worked its way to Isaac. Sweetiebeel landed on the otherside of Isaac, she landed on three legs, one held against her side.

And then Scootaloo landed with a split.

"Everyone alright?" Isaac asked. "Well, I know Scootaloo probably isn't but still."

"We need to get a move on!" Applebloom urged him already running towards the door.

Isaac opened the door and ran in followed by the crusaders.

"Issac! This way! The train is this way." Ellie said.

"Oh shit!" Isaac yelled as the doorway exploded.

Ellie and Stross went running through the doorway above there before that also blew up.

"Move! Move! Move! Head for the factory! Ellie, can you get the door to the factory opened?" Isaac asked over his comm.

"Are you crazy? I barely it out of there with my life! That place is swarming with those things!" She yelled back.

Now the air was being sucked out of the room as the lights turned blue and the sounds of necromorph's could be heard. Very close.

"No choice! Go! Go!" He yelled louder than before.

Soon the Pack started to jump from the balcony where Ellie and Stross once stood.

"Get back, move into a corner!" Isaac yelled to the crusaders as they shot a number of necromorph's.

They were all huddled together in a doorway, shooting numerous necromorph's as they tried to run at them. Only the Pukers hit any of them, even if it was just Isaac.

Soon more and more came out before a near swarm was attacking them. Sweetiebelle panicked and put up a shield.

"Come on! Why won't this bloody door open!" Isaac yelled.

The shield had started to gain a few cracks as more blades started to hit it.

"Come on! Open!" He yelled again raising his Pulse rifle.

The shield broke and at once a swarm of necromorph's came crashing through, and not a second after they were being shredded by the barrage of gunfire.

The door opened and they ran through, Sweetieblle slightly stumbled as a Slasher made its way in before scootaloo sent it into the ceiling with a loud thud denting the heavy metal.

"Holy... shit." Isaac panted leaning on his knees. "Let's never do that again."

"Ah'm with ya there." Applebloom said as she lay on her back and raise a tiny hoof before rolling over onto her belly. "Sweetie, how are ya holdin' up?"

The unicorn in question was staring bleary eyed at her friends as she rubbed her head. She stumbled backwards and nudged the Slasher lying on the ground.

And not a second after all her friends watched as it jumped back onto its feet and brought it's only blade down in a sideward swing.

"No!" Scootaloo yelled as she grabbed it. "You monster!" She cried as she repeatedly slammed it against the walls until she was sure every bone in its body was broken.

Her two other friends, stood there, looking at what was Sweetiebelle.

The Slasher had done none-fixable damage. When it swung it beheaded her; her head was lying in front of her.

Ponyville.

Rarity was on the ground crying with all her content and more as Fluttershy sat beside her, crying softly alongside her as she stroked the unicorn's back.

"No..." Alex said. "No!" He yelled stomping the ground.

"Sweetiebelle... man why'd it have to be any of them, but why Sweetiebelle?" Rainbowdash said to herself, ears splayed back and salty tears stinging her eyes. "Buck every one of those things!" She shouted.

Twilight was hyperventilating, Rarity was still crying, Fluttershy was also crying, Applejack had her hooves in her eyes, Rainbowdash was screaming curses at the necromorph's and Alex was looking at the mirror.

"Ugh... guys you should look at this." He said. "Guys! Look dammit! Something’s happening!"

They all looked hesitantly up at the screen and gasped alongside the crowd.

Titan Station.

"Dammit! Why is there still blood coming from her? It should have stopped almost a minute ago." Isaac said looking at the fresh stream of blood coming from Sweetiebelle's body. "What the hell?"

Her neck wound started to close and slowly healed, the blood stopped gushing out and more of the skin, bone and hair grew where the head was.

In one quick burst a new head came out from her neck stump. And then, she was still again.

"Sweetiebelle...? Are-Are you alright? Sweetiebelle?" Scootaloo asked.

A low moan came from her and a hoof slowly started to rise.

"Ow... my head feels like I just slammed it against a wall and had my horn broke off." She said sitting up.

All her friends were staring at her, each of them backed against the wall. She didn't notice, she was distracted at squinting at her head on the floor.

"That's a weird reflection." She started to reach out with a hoof. "It almost looks like I could... touch it." Her hoof met the head and slightly pushed a lock of hair up.

Her eyes shot open as she backed away before deciding to run behind Isaac and hold onto his legs.

"What-what-how-why- what's, what's going on! Why is my head over there!?" She panicked, her tiny chest moving back and forth in a blur. "Answer me!"

"It must be a side-effect..." Isaac said. "Sweetiebelle, I think you may have been affected by that Infector much more than we thought. By a lot."

"W-what's that supposed to mean!? What am I!? What's happening to me!?"

"I-I need to ask something. Give me a second." He slowly pried her off and let her latch onto Scootaloo. "Alex, is there any way to send things from over here there?" Isaac asked.

Ponyville.

"I-I don't know... is there any way?" Alex asked.

"Not that I know of. Unless we could send Spike there, then no." Celestia said.

"Wait, say that again." Alex said.

"Unless we could send Spike over there. You’re not thinking of-"

"No! What if we send some of his fire!? We could have them use that and then they could hopefully be able to send things over here!" He kissed her on the lips making her blush in front of the crowd. "Honey you’re a genius! And a life saver!" He said before his horn started to glow.

In a flash Spike was sitting there, with his old apron on and a tube of icing in claw. It took a second for him to realize his surrounding's changed.

"Alex? What's going on?" He asked.

"Listen, I need you to breathe some fire into a box for me. Can you do that?"

"Sure... but where’s the-"

Alex's horn glowed again and a small box appeared.

"Come on! Spit it out! We have lives to save!" Alex urged him on.

He raised an eyebrow before shooting out a ball of flames into the box, where it was promptly sealed. His horn started to glow again as a spell fired at the box. It seemed to just freeze in a block of ice.

"Send them a letter! Quick! And wrap this up too."

Before Celestia could grab hold of the small box, a pink hoof grabbed it and wrapped it in a scroll of parchment.

"Here! Now send it!" Pinkie yelled.

"Here goes nothing..." He muttered before tossing the cube and scroll through.

Titan Station.

Sweeitebelle was hanging onto Scootaloo, her eyes wide, mouth hanging open and only the steady sound of breathing giving a clue to tell she was alive.

A small black smoke cloud floated down and landed at Isaac's feet. He picked it up and nearly dropped the metal cube that was in it.

"Dear Isaac, please get a blood sample from Sweetiebelle, put it into a small box or paper, aim the box lid towards the object and open it. (Warning contains magic dragon fire.) Love, Pinkie Pie." He looked back at the cube and then did another read through of the scroll.

"If she says so. Sweetiebelle, could I get quick blood sample from you?"

She snapped out of her trance and looked at him before extending a fore-leg.

He took out a small health canister used it on her and sucked in a small amount of blood. He set it on the floor in front of them all and aimed the box at it.

He opened it and a torrent of green flame shot out for only a brief second.

When it died down the canister was gone, not even a scorch mark.

"Magic dragon's too... What doesn't your world have?" He thought to himself.

Ponyville.

The mirror shimmered before a trail of green smoke appeared and at Alex's hooves, landed a small canister.

"I'll be right back; I just need to run some tests." He said before teleporting away.

"Sweeetiebelle... you truly are an angel." Rarity cried knowing her sister was still alive and beat death twice. "You’re your own guardian angel."