Decades after leaving Ponyville, Spike is consort to Dragon Lord Ember, and father to her children. Settled into his role as her diplomat, relations with Equestria have never been better. His life as a proper dragon is going well.
Until one day he receives a letter, a summons he can not refuse.

Audiobook

Parents tell their foals that they can be anything that they want.
For me, however, it's a bit more literal.
At least it would be if my parents had said that.
Or if I knew them at all!
So what do you do when you can become anypony?
You become a spy, of course.

BEWARE: SPOILERS IN THE COMMENTS

It's Hearts and Hooves Day in Ponyville. And Twilight Sparkle is on a mission to find out as much as she can about the subject of Love. She finds herself in Sugarcube Corner, observing the other patrons, and talking to Mr. and Mrs. Cake, in a effort to answer the most important question of her life: What is Love?

We sometimes forget the past. Or rather, we do not want to remember it. But sometimes the past refuses to be forgotten. The All-Mother Faust, Discord, and a human named Alder created Equus and all life on it. But they betrayed Alder, sealing him away into the crust of the world. Only for him to escape during the era of Twilight and her friends.

Prompt idea written for Lord Despair of the Write Club.

Twilight has always preferred indoor activities like reading, to outdoor ones. But after not leaving her home for a long time, her friends decide they need to try to get the bookworm out of her shell. And out of her house.

A Royal Canterlot Library nominee.

This story is a sequel to Against the Wind

Twilight and Trixie raise their new foal. A rambunctious unicorn colt, whom they named Starswirl after the historical unicorn wizard. And like the mage with whom he shares his namesake, young Starswirl Sparkle seems to be destined for greatness.

CANCELLED STATUS: A lot has changed in the show since I started writing this. Trixie's return, Starlight, and Canon Starswirl that I just couldn't find a way to write around. Sorry about that.

After an urgent call to the castle, a snafu leads to a missing Celestia, and Twilight and Rainbow Dash caught (literally) red-hoofed in her royal chambers by the guards!

What do you do when the world is convinced that you've assassinated Princess Celestia?

You run! That's what you do.

You run your flank off!

In the human world, colorful pastel ponies are just as commonplace as any other Earth equine. But one of them has a secret. An upstart rancher named Arthur is about to find out exactly what that is.
But he'll have to catch her first.

Twilight loves Celestia, though she had never had the courage to tell her until today. But it seems that forces have aligned to prevent her from being with the one she loves. Twilight fights against all odds to deliver the letter she had struggled so long to write. However, it may turn out that neither she, nor Celestia could possibly be ready for the consequences of their relationship.
Because being immortal does not mean being invincible. And a Princess is no more immune to pain than a pauper.
... especially in matters of the heart.

Shortly after the events of 'Magic Duel', Trixie reconsiders life on the road. She had returned to Ponyville to prove herself to Twilight Sparkle. But perhaps it wasn't for the reason she originally thought.
She returns once more to finish patching things up with her but there are other issues at hoof. Twilight extends her hospitality, but there are her many questions about the showmare left unanswered. Where has she been? What did she do while she was away? How did she amass so much wealth in that time?
Trixie has dodged Twilight's scary questions long enough. But the answers may be more frightening still.
NOW SEQUELED!