North of bountiful Equestria and beyond the Crystal Empire lies an icy land of cryptic mystery. Its inner reaches have never been explored, but a Canterlot University expedition is set to change this. The plan is simple: penetrate the unknown depths of the Uncharted North and discover its most hidden secrets.

It's a noble undertaking, but a dark cloud looms on the horizon. Princess Luna's dreams have revealed a great but shadowy threat. To minimise the danger, Princess Celestia requests that her most loyal student, Twilight Sparkle, join the expedition and keep everypony safe. With the aid of her number one assistant, Spike, and mailmare Derpy Hooves, Twilight will attempt to do exactly that.

Cthulhu Mythos crossover, inspired by At the Mountains of Madness by H. P. Lovecraft.

When Apollo 11 lands on the moon, Neil Armstrong utters his famous lines as his boots land in the lunar regolith, but when he turns around he finds something no one was expecting or had ever planned for.
There's an alien on the moon. And it's blue, four-legged, and staring at him.

Sequel here.

There's always room for another in Harth Stonebrew's inn. From the stoutest dwarf to the haughtiest blood elf, a seat is always open for someone looking for a fine pint of ale or a lively round of Hearthstone.

Even if they happen to be a small talking horse from another world.

Of course, otherworldly patrons attract otherworldly attention. So when the presence of a mighty mage from Equestria sparks the interest of a wicked warlock from Draenor, Harth can't help but smile. It's going to be another busy night at the inn.

Quiet mornings before school starts can be lonely, but peaceful. For some people, they're a good time to just breathe and prepare themselves for the day ahead. Fluttershy and Adagio Dazzle find themselves doing this in the same place at the same time, in their own ways.

Based on a picture that was a little too big to be the cover art, but cute enough to inspire some shipping anyway.

Now comes with actual cover art courtesy of SkycatcherEquestria!

Comments may contain spoilers!

Now comes with Trope page!

After losing their magic, the Dazzlings are hit hard by shame and sadness. None are more hopeless than Adagio Dazzle, who loses all light in her life and begins to sing a swan song. For sirens, this is suicide.

Sonata Dusk begs for the help of Sunset Shimmer and her friends to stop the song and keep Adagio alive, but they discover that saving a life is more difficult than saving a school, and they may not be able to keep their former enemy from fading away forever.

This story was inspired by the song "Never Too Late" by Three Days Grace.

"Main 6" is tagged but Twilight is not in this story.
Rated Teen for language and mature subject matter.

Another Mystery Crossover: The Conversion Bureau has all but won, and the barrier is closing in. Soon Humanity will be a fading memory. A few last souls are preparing to hand over Earth to its new masters. At the proper place and at the proper time. Celestia is delighted, but should she be?

Will the Soldier be able to overcome Equalism? You know the answer, but read on to find out how. Because Starlight Glimmer isn't just going to roll over and give in.

A machine made for war awakes in a new world. Stuck in surroundings which puzzle it; can it, or will it be able to become something more than what it is?

Crossover with Keith Laumers Bolo-verse
Other tags include : Slice of Life, Possible Romance believe it or not! And a bit of humor.
Please beware of any spoilers in comments as well

WHY HULK HERE? WHY PUNY PONIES ANNOY HULK? ALL HULK WANTS IS TO BE LEFT ALONE!

After an massive space battle, Banner finds himself in a colorful land. A land where he doesn't need to be angry. Will he finally find a world where he has no need for rage? Or is the Hulk's wrath absolute?

Hulk will be Hulk, but Banner will be a lot more relaxed and in control of his rage. For a while.
I OWN NOTHING!

When the citizens of Equestria find themselves unable to communicate properly, it's up to Twilight and the gang to figure out why. Rated 'Teen' for gratuitous nonsense.