[Complete! With TVTropes apparently!]
Also, apparently, an animated trailer.

In a world of brass and steam, Twilight Sparkle had thought she had made a life-changing discovery with the invention of the telescope. For better or worse, she was correct.

Now her discovery has not only changed her life, but the lives of those she seeks out in her desperate attempt to contact the only other creature as lonely as Twilight herself.

It all would have been much simpler, but it had to be the one Twilight could only call The Mare on the Moon.

Decidedly not within walking distance, then.

[Featured on EQD before story was meant to be submitted. 4/03/2015]

[Editing team: Southpaw, Wolfvenom, Maskedferret, SwanSong and BluePaladin42, without whom this story would be a fraction of its current state.]
[Special thanks to Novel-Idea for the updated cover]

Twilight Sparkle considers herself a learned pony. With the power of her intellect and a healthy dose of friendship, there’s no problem too big to solve. Or so she thinks.

However, when she criticizes Discord’s favorite action movie, the mad god takes revenge in a way that nopony saw coming—he turns her entire life into a summer blockbuster. Now, Twilight’s out of time, out of options, and out of luck, as... the princess under fire.

Many thanks to JeffCvt for editing. Cover art and all chapter art provided courtesy of the talented Magello.

I am forced to assume that neither of those two gentlemen have ever seen an explosion, because they're always facing away from them.

A head full of romance is what many Canterlot ponies would call a frivolous waste of time. Everypony was meant to play by the rules of high society: keep your nose in the air, laugh at important ponies' jokes, and attend all of the right parties. Upper Crust and Jet Set had been diligent in raising their daughter Crystal Wishes to be a pony everypony would know, but she wanted more out of life than that. She hoped she would someday meet a handsome prince and fall in love, just like in the stories she wrote.

Crystal knew life wasn't as easy as a foal's tale, but that didn't stop her from dreaming. All of the wishes, hopes, and dreams inside her heart escaped into her precious notebook as she wrote about princesses in power and dashing knights. So long as nopony found out her secret, she could continue to play the part of a dutiful daughter while waiting for her own love story to begin.

A brave stallion goes on a quest to save the world by finding a lost princess in an enchanted forest. Things don't work out as he planned.

WARNING: Some spoilers in the comments. Also, a few mild spoilers for the Alicorn Adventure series, though it's not necessary to read those stories to understand this one.

Equestria Daily Page
Goodreads Page
Zabaware/AT&T Natural Voices "reading" by Modoc

This story is a sequel to Past Sins

In the wake of the battle with Tirek, Twilight Sparkle becomes fixated on restoring Golden Oaks Library. After all, it was home for her little family of three. But as her attempts to repair the books and tree continuously fail, her friends must take matters into their own hooves. Discord, as the good friend he is, tosses Twilight and her extended family into an unexpected adventure while Twilight's other friends get to work on the new crystal palace.

All together, they'll do everything to ensure Twilight and her family have a place to call home when they reach the end of the road.

This story is a sequel to The Wizard and the Lonely Princess

Book Two of the Lonelyverse

Having returned to the Dursleys after a highly eventful first year at Hogwarts, Harry and the alicorns had been looking forward to unwinding. As it turned out, all their hopes were for nought. Between summer shenanigans, a crazy house elf, and learning Potter family history, they've got a full summer ahead of themselves. And when they get back to Hogwarts, they'll have to deal with giant snakes, idiotic teachers, and a gathering darkness. With things going off the rails, they've got a long year ahead of them.

And if they survive that, they still got to deal with the strange power surges and dreams that both Luna and Nim have been having since soon after the Summer Solstice...

Other stories in the Lonelyverse:
The Wizard and the Lonely Princess
Hooves, Plush, and Magic: The Untold Tales
The Wizard and the Lonely Princess: Hallowe'en Special
A Nightmare Christmas

Celestia had always thought she'd reached the pinnacle of fear when she fought against some of Equestria's greatest enemies.

As it turns out, however, nothing compares to explaining to Twilight's parents that she's in a relationship with their daughter.

Shining Armor has been infected by a Changeling poison that threatens to destroy his magic or worse. When Twilight and her family are tested to see if they could be potential horn marrow donors, an old family secret is brought to life.

Ponies expect certain things from a mysterious shop that appears at the end of a lonely side street, and Old Gob does his very best to provide that experience. The candlelight flickers, a thick layer of dust coats items of dark and fantastic powers, and the door creaks ominously as ponies enter and leave with their purchases to discover the costs and rewards. Of course, sometimes the costs outweigh the rewards.

They certainly did for Twilight Sparkle and her friends. So when they manage to get to the shop right before it closes and disappears, they aren't going to leave until they get a refund.

(Fic contains a small amount of comedic TwiJack shipping.)

Second place winner for the February Writeoff Association prompt "Closing Time."

This story is a sequel to Princess Twilight's Profoundly Peripheral Protector

Big threats were nothing new to Storm Kicker. Even before entering the service of Princess Twilight Sparkle, Storm's career had brought her head-to-head with some of the worst Equestria could offer, and more still—from water monsters in Canterlot to the changeling invasion. She knew when she agreed to be Princess Twilight Sparkle's bodyguard that it was probably only a matter of time before some new ancient evil broke loose, and she would need to be there, at her princess' side.

When Tirek began his assault on Equestria, Storm was ready to give her life in the service of princess. What she wasn't prepared for was Twilight sending her away. However, regardless of her princess' orders, Storm swore an oath to serve and protect her princess, and she will do what she must to fulfil it. Even if it means putting her life on the line in a hopeless battle against an enemy she cannot possibly defeat.