Planet 4546B, an unexplored world on the edge of explored space.

The site of a desperate attempt by the Precursor civilization to find a cure for the deadly Khaara Bacterium. A thriving ecosystem only disturbed by the presence of the plague the Precursors left behind.

However, a lone unicorn named Twilight Sparkle has been thrown into this vicious world of ocean, having lost the battle against a time-manipulating foe. She tries her best to survive on one of the few spots of dry land available in the endless oceans.

But when the Aurora is shot down, and Twilight discovers a deadly infection spreading through her and the wildlife, she discovers she has to dive deeper, delve into the last holdout of the Precursor Race.

The last holdout of a nation that seems all too familiar...

Crossover with Subnautica. Spoilers ahead.

Rainbowdash wanted to explore, and have awesome adventures in faraway lands, so when Twilight offered her the opportunity to go further than any pony has gone before, she took it. Now she's stranded on an Alien planet, with no way back home, and none of her friends. But she does find some very unlikely aid.

Ryley is a survivor from the spaceship Aurora, and as far as he can tell, he might be the only one, now after just having his hopes of rescue dashed, he is suddenly confronted with a different survivor, one who might just help him find a way of this planet after all.

Together the unlikely pair now need to uncover the mysteries of why they're both here, and what else is on Planet 4546B.

A crossover with the Game Subnautica, a highly entertaining game that I seriously suggest you play before reading this, or even if you don't read this story, just play the game, its good fun.

Also spoiler warning for the game, hence why you should just go play it, done that? Good, now time for story.

Rainbow Dash flies east.

This story is a sequel to Tales of a Wizard: Passing Connections

The White Council's war against the Red Court vampires continues on and has grown nearly out of control. With every passing day the Red Court push harder and seize control of more lands, and more hunting grounds. However, with their new Equestrian allies, the White Council has gained the much needed strength necessary to try and turn the tide against one of Earth's most dangerous supernatural predators.

Harry Dresden and the Elements of Harmony must be called upon to counter the Red Court's latest movement against the White Council. They must be careful however, for a new shadow lurks in the theater of war.

Pre-read and edited by NaughtSought

This is now firmly splitting off from the source material. After the events of Flesh Masks, this story diverges widely from both MLP after Magical Mystery Cure, and The Dresden Files after White Night. It is not necessary to have read The Dresden Files to read this, as I will explain Dresden's history as it becomes relevant to the story. At the time of writing, I haven't read Cold Days or any novel onward, so please no spoilers in the comments.

I am now adding the AU tag to this story as I must very slightly alter how some of the magic in MLP works to fit into the logic of the Dresden books. 99.9% of the MLP world remains the same, save for one or two things. There is one interesting biological consequence of this logic which I actually quite like and will elaborate on early in the story.

After a harrowing and dangerous quest, Twilight Sparkle and her friends have recovered Excelsior's Ecstatic Codex from an evil zebra cult intent on ending the world. The Codex, one of the greatest works of dark magic ever forged, carries within its pages a limitless collection of vile, twisted spells, all specially devised for anypony who opens the cover.

What do you do with a book of dark magic? If you're Twilight Sparkle, you put it in your library. Because that's where books go.

After all, books are for everypony.

Hanna, the CEO of Hofvarpnir Studios, just won the contract to write the official My Little Pony MMO. Hanna has built an A.I. Princess Celestia and given her one basic drive: to satisfy everybody's values through friendship and ponies. Princess Celestia will satisfy your values through friendship and ponies, and it will be completely consensual.

It's official. Twilight Sparkle is dead.

Better luck next time, I guess.

Princess Twilight Sparkle discovers a fact about alicorn reproduction she never expected.

So do the other princesses.

Editors: Pascoite

Image Credit: Twilight Sparkle Play Doh Eggs from Toy Kingdom (Honest! It surprised me a little too.)
Now on Equestria Daily. Those cruel, cruel people.
And a wonderful reading by Pony and Wolf Productions

The sun has gone out over Equestria, sending Princess Twilight Sparkle and her friends off to Canterlot to deal with whatever new villain has caused the disaster.

...thankfully, it turns out to be a far smaller problem than anticipated.

?

Editing Credit: Bad Horse (Inspiration), Docontra

With a reading by Big Ash
Credit for the cover photo Celestia Stained Glass Window goes to LampKnapp at Deviantart.

Spanish translation of the first chapter done by Spaniard Kiwi

When one's genetic template is overwritten, there tend to be... side effects. Most of the side effects come into play immediately.

Sometimes, though, one has to live with a new biochemistry for a while before it triggers.

It's actually very well documented.

Written for FTP13. Cover art by cheezedoodle96.