Hearts and Hooves Day. Anon wants a pizza; Cadance wants to find him a marefriend. Only one of them is going to get what they want today.

Lyra Heartstrings has always known that humans exist, even if none of the other ponies in her life have ever appreciated that fact. But aside from a few enigmatic ancient prophecies and a popular fantasy series, there haven't ever really been any authoritative sources on what humans were really like. Years of discouragement begin to take their toll on Lyra's faith in the strange and wondrous beings with their strange limbs and ways of sitting.

Until one day, when Lyra finds a strange device on the ground outside Ponyville, and it starts talking to her with short messages printed on its tiny screen. So instead of search for the device's proper owner, Lyra takes it home, hoping for the chance to talk to a real human.

Takes place ostensibly in the universe of My Little Apprentice, though very little connection with that story is expected. Familiarity with that story and its sequel are neither expected nor required.

This story is a sequel to Iron Hearts: Book 3 - The Sept Lamman

An MLP/Warhammer 40K crossover, part 4.

The Tau threat has passed. The fleet that once thought to sweep aside the tainted pirates of the 38th Company has fled the system. The Lamman Sept is broken, demoralized, leaderless...
... And victorious.

With Lamman's plan put into motion, an alien horde hurtles through the Warp toward the Centaur system, its soldiers without number and thirsting for violence. Equestria's heroes must find a way to stop them, or the entire planet will be overrun with ease and its inhabitants butchered. While they could afford some pretense of neutrality and disinterest in the fight between the Iron Warriors and the Tau, now it is their world that lay in the crosshairs of the foe. Ponykind will need help to survive, and they look to the forces of Chaos for aid. But is there any hope to be found in the darkness?

EXPLOSIONS ARE IMMINENT.

(Dark humor warning; mild grimdark)
(Cover Art by Ahrimatt)
(This series now has its own TVtropes page!)
(This series is a contestant in the Tournament of Canterlot, a charity event to raise money for Syrian refugees! Go here for details and donations!)

This story is a sequel to Iron Hearts: Book 2 - Ferrous Dominus

An MLP/Warhammer 40K crossover, part 3.

The formal negotiations between Equestria and the Iron Warriors have failed. Yet peace and even cooperation between the harmonious ponies and the corrupted militants blooms in the dark corners of Canterlot and the open streets of Ferrous Dominus. The Elements of Harmony are safe, trade flourishes, and cautious meetings grow into lasting friendships as an unsteady calm descends upon both forces.
Even the Tau threat seems to have mysteriously vanished as the Iron Warriors refuse to assault their hideouts and risk springing the traps of the Fire Caste.
But the Tau have not vanished. The Lamman Sept of the Tau Empire, the Fire Caste's hidden dagger, have come to grips with the slumbering giant looming over their doorstep and have moved forward into the final phases of their plan. Fleets ply the void, hunters stalk the orchards, and in the depths of the badlands a strange device is rapidly assembled for purposes unknown.
The Tau alone know that time is running out, and more than just the fate of Centaur III hangs in the balance.

SIGNIFICANT POSSIBILITY OF EXPLOSIONS.

(Dark humor warning; minor grimdark)
(Cover art by Ahrimatt)
(This series now has its own TVtropes page!)
(This series is a contestant in the Tournament of Canterlot, a charity event to raise money for Syrian refugees! Go here for details and donations!)

This story is a sequel to Iron Hearts: Book 1 - Planetfall

An MLP/Warhammer 40K Crossover, part 2.

Celestia has handed down her order. The Iron Warriors must be defeated and driven from the planet, lest the corrosive grip of Chaos infect their world. With great reluctance, Twilight and Company depart for the Iron Warriors fortress-factory in order to confront the Chaos Warsmith. However, in this mission it is not the might of the enemy that will be their greatest challenge, but their own burgeoning friendships with the admittedly less-than-saintly members of the 38th Company.
At least until the Iron Warriors actually consider them a threat. Then it's totally their military might that will prove to be their greatest challenge.
All the while, the Tau forces lick their wounds and plot their next move. They are far from defeated, and the Iron Warriors have little inkling as to the aliens' true purpose.

MORE EXPLOSIONS!!

(Dark humor warning; minor grimdark)
(Cover art by Nicholas Kay)
(This series now has its own TVtropes page!)
(This series is a contestant in the Tournament of Canterlot, a charity event to raise money for Syrian refugees! Go here for details and donations!)

An MLP/Warhammer 40K Crossover

The Iron Warriors 38th Company has landed in Equestria, entrenching themselves like a barbed hook. They hunt the aliens of the Tau Empire, intent on destruction and pillage.
A small squad is dispatched on a reconnaissance mission, only to find that there is intelligent life on this world besides the feuding space-farers.
Will these improbably adorable and friendly equine aliens turn the damned warriors of Chaos from their blood-soaked path, cleansing them of their dark legacy with the magic of friendship and harmony?

No.
No, that isn't happening.
EXPLOSIONS!!

(Dark humor warning; limited grimdark themes)
(Cover art by Nicholas Kay)
(This series now has its own TVtropes page!)
(This story is a contestant in the Tournament of Canterlot, a charity event to raise money for Syrian refugees! Go here for details and donations!)
(Featured on Equestria Daily 8/20/15 )

After years of gathering magical artifacts and assorted doohickeys, Trixie feels it's finally time to open up her own shop. The only problem is that she's located right across the street from The Golden Oaks Library, much to the annoyance of Ponyville's resident librarian-turned-princess. Luckily none of the stuff Trixie is selling is cursed, or so she's telling ponies.

Ponies say that if you wait at a crossroads with darkness in your heart, you can trade your soul away for power.

Trixie thinks this sounds like a good deal. Surely her soul is worth much more than the average one. Certainly enough to afford revenge against that life-ruining Twilight Sparkle.

But maybe exchange rates for souls are not as favorable as she expected.

This story is a sequel to The Things That Happen When Your Attention Is Diverted

Following his accident, the local human is in a bit of a bad way. Fortunately for him Rainbow - his bestest friend in the whole of Equestria and, indeed, his whole life at this point - is insistent on nursing him back to health. She's adamant, in fact.

And such an extended length of time spent together can lead the mind to wander...

This story is a sequel to This Is What's Meant to Send Me Home?

Rainbow couldn't get a day off so instead just tried to get her work done with as quickly as possible so she could spend time time with her favourite human. The only human available, in fact.

Unfortunately, things often go wrong when you're not there to notice. And this is what has happened.

As she discovers.