Whilst enjoying the company of Twilight Sparkle and her friends in the doughnut shop immediately following the events of The Best Night Ever a disappointed Princess Celestia send a letter off to Prince Blueblood explaining the implications of his failure of the "Rarity Test", among other things...

This story is a sequel to Mistress of the Dark

This is also a sequel to That one strange story about a donkey., but the description below is all you need if you haven't read either prequel.

Moondancer and Moonlight Raven have become unlikely friends, despite one being as preoccupied with science as the other is with mysticism. But when an artifact that blurs the line between magic and technology unleashes one of the more unique threats Canterlot has ever faced, the two must set their differences aside (and seek the help of a certain Doctor) to save the day… provided they don’t annoy each other to death first.

This was my entry for Ocalhoun's Big 250k contest, and obviously riffs on That one strange story about a donkey. I feel obliged to note that certain details of Eugene's character are not intended to insult or trivialize others; they're just part of the hand his character was dealt. Cover art assembled from here and here.

What happens when Twilight finds a book on Dark Magic? Chaos. Never let a filly learn a death spell.

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Spoliers in comments
Based on this cover art

Do not take this seriously

Wut. This got an awesome reading?

Set in the Equestria Girls universe!

When Twilight Sparkle (the scientist one, not the otherdimensional pony princess) predicts an oncoming magical calamity, it's up to Sunset Shimmer and her friends to stop it!

Now, they've got just two days to cover hundreds and hundreds of miles to get to exactly where the dimensional incursion is going to take place.

Good thing it's Spring Break. Road Trip!

Twilight has been dealing with increasing bouts of boredom and the cutie map is not helping. In order to alleviate the nagging dullness that has become of her princess-hood she decided to go out for a walk.

Something she'd regret on count of Pinkie and one of her sisters getting into a fight that challenges Twilight's sanity.

Just something random I wrote on a whim.

Sunset Shimmer might not mind losing her magic, but the Dazzlings definitely do.

Feeling robbed after the Battle of the Bands, the three of them retreat to the inner city part of Canterlot, where the risk of spontaneous magic cars and rainbow death-rays is hopefully a little smaller. Months later, they're still no closer to fixing the gems and getting back to business, so Aria opts to take matters into her own hands in the only way she knows how:

eBay!

...It doesn't go as planned.

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For another dose of snake-arm sirens, Equestria Girls, and some other stuff, check mayorlight's gallery!

One winter day, Twilight "Twily" Sparkle decides to make a snowpony, then brings it to life. Except it seems that the snowpony wants to destroy her. Can Twiley -- with the help of her best friend, Smarty Pants -- stop the snowpony, or will she find herself facing a snowy doom?

(An attempt at something slightly different. Based off of Calvin and Hobbes by Bill Watterson.)

Twilight Sparkle recovered her crown, made new friends, and redeemed someone with the power of friendship. As far as she knows, all is absolutely right with the world.

Sunset Shimmer can't believe she fell for it.

Also? Blame Wheatley

While on a walk, Twilight finds herself once again blocked by a swarm of bees defending their hive. She attempts to use a spell to get rid of them but things quickly go south...

Cover art done by Allusionist

Pinkie gets a book on how to ship her two best friends Twilight and Rainbow Dash and because they are so cute together, Pinkie decides to ships them using her new found book The TwiDash For Dummies.