When The Stars Align (Original, Rewrite, and Bonus Chapters)

Luna woke up to a cold metal floor. "Hello?!" She yells into the darkness beyond her cell. She receives no reply as the silence made her situation more and more ominous. Luna stands up shaking herself off. With determined eyes, The princess slams her body into the walls.
She winces before tumbling over. 'Again' She pumped herself up before running at it again. Hours of bashing against the cage later and she was starting to lose hope, It felt completely useless. She flops down on her stomach huffing attempting to catch her breath.

"I didn't expect you to give up so easily" A feminine voice cackles from the darkness. Luna tensed as red swirled eyes appeared from the darkness with a familiar purple mist emanating from them. "Sombra?" Luna says squinting her eyes. The creature shakes its head "No but I'm worse than him" She whispers in the mare's ears. Luna blasts her magic towards the voice but hits nothing.

Luna growls in frustration as the room gets impossibly darker. "I'm your worst nightmare, Princess Luna" She spats her name with a venomous tone. Luna starts to cry in frustration "S-SHOW THYSELF! THOU ART SUCH A-A-A COWARD!!!" Luna cries out in frustration. "I think you are the coward, my dear" The voice says so close to Luna that she can smell the scent of mint in its breath.

Luna blasts yet misses again. She's then hit with a blast of black magic. She holds her hooves to her head "How long have i been here? Am i hearing things?" Luna says feeling herself go insane. The voice laughs cheekily as Luna hears the clops of a hoof.

The door opens and a creature walks in. Its claws scrape the floor as a forked tongue ran over its pale lips. Luna looks up with a horrified stare. "Am i that ugly" The creature giggles wrapping its fur covered tail around her as she held the terrified mare. It's red and black mane reflected what little light shone in the cell as Luna found herself in the hands of a monster.

*In Canterlot*

Celestia groans as her internal clock woke her up to raise the sun. Astin holds the mare in a tight embrace as she attempted to rise from the bed. Celestia laughs and kisses his nose lightly. Her horn glows a bright yellow as she lowers the moon to make way for her beautiful golden sun starting a new day.

Astin moans pulling the pillow over his face. Celestia snickers licking his ear to wake her sleepy lover. "Tiaaaaa..." He groans reaching for her. Celestia laughs watching him as he turned to look at her. She fell off the bed rolling on the floor laughing harder at his bed head. "Yea. Yea. Soooo funny" He says getting out of bed. Celestia blushes a bit looking at the human's naked body "Nice view, Am i right?" He chuckles as the mare struggled to look away.

After an eventful morning, Celestia walked down to Luna's room to call her for breakfast. She saw her room was completely unguarded which worried her.

"Luna..." She calls out opening the door. She gasped as she saw the room covered in the black parasite. She took a shaky breath backing away tripping over an unknown object falling on her flank.

She saw the corrupted black body of one of her night guards. His body stuck as a statue. His dead fogged over eyes piercing into hers. She screams out in horror as she holds her hoof to her mouth feeling nauseous. "No Luna..." She sobs looking for her sister. She feels the parasite start to crawl up her arms yet she looks desperately.

She suddenly gets pulled back into a tight embrace. The clops of many hooves followed and stopped as many guards stared in terror including Shining Armor. Celestia fought against Astin's hold "Astinnnn" She cried feeling absolutely helpless. "Celestia, It's ok" He says holding his sun princess. Celestia nods, a disbelieving look in her eyes.

Astin starts his walks over to the guard to be stopped by a hoof on his shoulder. "I don't know if you know but that is a parasite and it's not safe to be near it" Shining Armor whispers to him firmly. "I got this" Astin whispers back placing a hand on Shining's shoulder. The bond of trust forms as Shining nods respectfully.
Astin touched the guard watching as the black shell turn to water. Celestia gasps softly as she watches the guard cough and stand shakily on his hooves.

"I-It was terrible" the guard started as Twilight and her friends ran in. "It was a strange chimera like creature similar to Discord but more pony-like and it had swirly red eyes. It changed into a guard andsnuckintotheprincess'sroom-" He was interrupted as a cough shook his body violently. "Calm down and explain what happened slowly" Astin says patting his back. The guard nods "Ok..." He gasped
*Flashback*

The guard ran his hourly patrols around when he saw a strange creature in the castle gardens.

It's mane was in a red and black ponytail. It had the body of a pony and the tail of a furry dragon. It suddenly was surrounded by black fire and there stood a palace guard. The night guard followed the suspicious guard as he walked quickly to Princess Luna's quarters.

The night guard tackled the fake guard to the ground. "What is your business here" He demanded holding the guard down. "That. is. none. of. your. business." The creature snarled throwing the night guard against the wall. The creature marveled over its work before opening the princess's chamber doors.

The guard coughed as he wiped his mouth. Crimson stained his fur as he charged at the creature jumping on its back. The guard grunted as it bucked around attempting to free itself from the grasp of the night guard. The guard clamped down hard on the creature with his fangs dragging it to the floor.

The creature threw him off his back and jumped on the guard. The night guard looked in horror as the guards normal face contorted into one filled with insanity. The blue in his eyes were replaced by glowing swirly red orbs. The creature punched the night guard mercilessly over and over. The night guard cried out coughing up blood as the creature punched him in his chest and stomach. The creature then started to close its hooves around his throat.

The night guard spat out blood pushing back punching the creature with his hooves struggling for not only the princess but his life. He smacked the creature with his bat-like wings sending it flying to the otherside of the hallway.

The two panted as a dark magic surrounded the fake guard. Suddenly he disappeared making the night guard tense up. He looked toward the princess's room to see him hovering over her bed.

"No!" He yelled trying to move his hooves but to no avail. The shadow quickly corrupted the night guard swallowing his body in darkness.

The last thing he saw was Princess Luna's wide despair filled eyes as she was teleported away.