This story is a sequel to We don't go to Sub-Level Five

With the nightmares of the Silos behind them, Astral and Sassi begin to adapt to a world that lacks any understanding of the horrors now buried underneath glass and stone. The only creature in their life who can serve as a confidant is Arcane. However, the chaos-unicorn is busy learning to adapt to a world and society now alien to him. But they have each other, and their lives start to settle into a form of pleasant normality.

As life in Equestria and the Gryphon Empire continues on, Twilight and Tanzil are forced to confront troubles both within and outside their borders. Sometimes peace is but a thin, false veneer over chaos, and the two rulers quickly discover that their budding relationship may be the least of their troubles.

When a familiar horror emerges from the shadows, Astral, Sassi, and Arcane are forced to confront a terrorthat looms not only to engulf their new home, but all of Equestria and beyond. With their nightmares no longer confined to their minds, the three ponies desperately try to save who they can from the oncoming storm. When faced with some threats, all you can do is run and pray that it doesn't find you.

But for the two Thestrals, a unicorn, and their friends, they're sick of running. And they've got lots, and lots of ammunition.

Spoilers for We Don't Go to Sub-Level Five, Timeless, Sunspots, and Cure for a Toxin

"Sub-Level Five doesn't exist." That's the official statement of the Stairway company.

Washing out from the Night Guard program is usually a death sentence to any similar career. When Astral Sentinel was asked if he was interested in a security job, the Thestral obviously jumped at the chance.

There was just one oddity about the job. Well, there were quite a few, but mainly just one.
He just never, ever could acknowledge the existence of Sub-Level Five.

When a complete lock-down traps the Thestral inside the odd facility, he has to break that one rule. As the security systems begin to eradicate all life inside the building, Astral has to venture down to the elevators that officially don't exist, to a floor nopony alive will speak of.

He soon finds out that some things are best left buried beneath rock and stone.

*Warning. Hitchhikers may be escaped convicts.

"This story is simultaneously horrifying and adorable." -Witchery

Takes place far after Season 9. Although, it could take place at any time...(or in the Radverse, as some people call it.) This thing took on a mind of its own.

Seriously.

Read on if you want to join Astral for the ride.
I hope you brought your crowbar.

In later chapters, loose spoilers for Timeless, Sunspots, and Cure for a Toxin
Warnings for creepy atmosphere, gore, violence, and brief mentions of sexual content/assault (nothing explicit, only implied.)

Despite this being a horror story with unpleasant elements, it's not grimdark or a depressing tale. Lots more ups and downs, but overall it's a positive read of good vs evil, love and fluff; those are the types stories I write, after all. I just want to let everyone know what they're getting into, and don't want any readers blindsided due to some of the content.
(Not a romance involving a 'herd')

This story is a sequel to Sunspots

This story continues directly after Sunspots and contains spoilers for that story and Timeless.

When a mysterious group attacks a chemical lab, there was only one pony who Celestia and Luna knew could survive the ensuing challenge that lurked beneath earth and concrete.

Called into action against a threat that seeks to destroy both him and his new friends, Toxic Shield is pulled into the remnants of a conflict that all thought was burned away by the wrath of a Solar Empress. Many remember him as the pony with an odd voice, others, as the sole survivor of the Oakbark incident. Many call him the Iceberg. Cold, unfeeling, and without empathy, immune to both chemical agents and emotions it would seem. Very few care to explore the truth of such stories, at least until a gryphoness befriends the odd stallion.

And as a poison in many shapes and forms seeks to spread across Equestria, a reformed Windigo and Shadow Pony from the Limbo realm struggle to find their place in a world that once loathed everything they represented.
Many still do.

Everyone wears a mask. For the rulers of Equestria, that mask must be impeccable for their subjects. Only around their guards can the two Princesses relax ever so slightly, occasionally showing that they are just as fallible as any other creature. For one Princess, the burdens of her own mind begin to make the mask crack. However, when Private Steel Heart notices that it is, in fact, the pony underneath the mask that is beginning to splinter, he offers to help.

He had no idea such help would first involve getting attacked with a large brush.

Warning: Involves slow-burn romances, lots of feelings, comforting moments, adorable affectionate gestures, lethal amounts of fluff, feel-good auras, and a deadly combing implement.
Takes place around Season 8-9 (ish)

Cover art used with permission by the talented Yakovlev-Vad, seriously, check out his art. He's fantastic!
https://www.deviantart.com/yakovlev-vad/art/Oops-Sketch-743917791
*Edit. Featured on the first day? WHAT IS HAPPENING?

Being Captain of the Canterlot Royal Guard is a tough job be it from dealing with the public or, more often than not, the boredom. In those times, one's own past and thoughts may be a greater adversary than any attempt on the Princess's life.

Gallus comes home after one such mental battle, hoping to find refuge in the one place he knows the enemy can't touch him.

Spoilers for Season 9 Finale and Epilogue

Personal discovery is a wonderful thing. In Silverstream's case, five words softly uttered from a certain distraught friend was all it took to ignite a furious fire in her heart.

Unfortunately for Grampa Gruff, he was flammable.

*Spoilers for Season 9 Episode: A Horse Shoe-In*

Severe thunderstorms are a commonality when living in a mountain fire lookout tower; an event that comes and goes with ease. However, when a storm takes a turn for the worse and causes the resident lookout to fall unconscious, the scene that greets him on awakening is about as unsettling and unwelcome as can be.
Or is it?

With his radios and cellular service cut off, Equestria's first human visitor is left to his own devices to figure out why he and his tower are now in the middle of an mysterious and dangerous forest. Well, at least the clouds still move on their own, that's a good thing, right?

Look out Equestria, there's a new human in town!

*Takes place during/after Season 9

This story is a sequel to Timeless

(This story is a direct sequel and picks up right after Timeless ends. If you haven't read the previous story, ye be warned for confusion and spoilers!)

The sun is eternal, distant, powerful, timeless, and out of reach of any mortal creature. Like the entity she controls Celestia has curated such a view of herself over a thousand years. Having run the nation for over a millennium the Solar Princess is, to many, a revered and nigh-unapproachable figure.

However when you wear a mask for too long, it is said, you can forget who you are underneath.

While attempting to maintain a semblance of government during a devastating plague-like outbreak Celestia herself falls ill and she is all too thankful when an expert on the disease arrives to help. What the Alicorn didn't expect to find however, was how much she needed a friend more than any curative potion. Yet something about this doctor seems oddly unnatural and familiar.

As the continued efforts from a dangerous foe strive to destroy everything the Solar Princess holds dear, friendships may prove to be more valuable than any blade.

Takes place during/after Season 9
Spoilers for Timeless, Prison of Ice with Silver Keys

Art used with permission, created by the talented Yakovlev-Vad *Click here for Link*

Time is a neutral party. It takes no sides, only proceeding without a care for those caught in its trap. That is how it should be...
But not all traps are foolproof.

When a pony seeking the Night Princess's counsel intervenes during an assassination attempt, Luna knew there was more to this stallion than met the eye.
However, even her expectations had limits. That, Luna discovered, was a mistake.

One question troubles her thoughts as a new problem presents itself in the form of this stallion; how does a heart and mind cope when one escapes the trap of time? What happens to a good heart when it is worn away, year after year, all stemming from a single mistake, no matter how good the intentions?

Equestria Daily seal of approval: https://www.equestriadaily.com/2019/11/fanfiction-timeless.html

Takes place during/after Season 9.
Sequel: Sunspots

Captain Galen and his for-hire crew were well known for taking odd and dangerous jobs. Be it mapping dangerous areas to taking emergency distress calls, the crew had seen it all. After a solid two weeks of back to back work, the crew looked forward to dropping off a captured criminal and getting some rest. An urgent request interrupts their plans however, and they are tasked with kidnapping a Princess to keep her out of murderous claws.

But all is not what it seems, and before the dust settles relationships will be forged and tested as the foundations of kingdoms are shaken to their roots. What started as a odd yet straightforward two-week job now has no end in sight, and there are no safe harbors from the storms of war that loom on the horizon.

Highly recommended reading for continuity hints and therefore spoilers for (Gallus and Silverstream Adventure): Stream of Silver, Heart of Gold & Prison of Ice with Silver Keys
(In the description of the first chapter, the key points will be summarized for those who don't wish to read the other stories)

Other Spoilers: Seasons 1-8, MLP Movie, the comic 'The Stormy Road To Canterlot' (And others), and chapter book 'Beyond Equestria: Fluttershy Balances the Scales
Tag Info: Violence/Death/Gore tags for plenty of fight scenes both large and small.