When a portal is opened between two otherwise disconnected worlds, a few reliable spells go a little crazy- and result in a series of letter-bearing owls passing through the portal. Several times.

What could possibly go wrong?

Made it to 34 likes before the first dislike. For my first story to make it past 7, that's amazing. Thank you!

Written with the able editing assistance of Skittlebug starting Chapter 12 and Gerandakis as well starting Chapter 20.

As of today, 1/26/20, this story has been cancelled. I kinda hate to cancel a story that was going so well... But, to be completely honest, it sucks. When they talk about story 'arcs', they mean that if you were to make an outline for it, and use indentation to denote subplots and so on, each arc would form a rough arch shape against the side of the page, with the indentation. I just threw one together with this... and it looked like a list of bullet points. Random, incoherent events, tied together by nothing but SoL (No plot relevance to each other)... Not good, either by itself or for the future of the story.

Edit much later than it should have been: As of 2/25/20, the rewrite has begun publication, and is available... here: On the Implications of Parallel Worlds

Worry not, this story is staying up indefinitely, even as the rewrite inevitably develops far past it.

Harry Potter, after a beating by Dudley and friends wishes he had somewhere safe to go, and starts crawling home. He ends up in Equestria. The young Cutie Mark Crusaders find him. A year later, a Hogwarts owl unleashes the CMC, Harry, and Equestria upon wizarding Britain! And adorable cute magic-wielding ponies upon the rest of the world.

Copyedited by gerandakis. Excellent cover art by Mix-up.
Made Featured Stories starting Ch. 18, Jun 25, 2018!
Made Front Page Popular Stories – Jun 11 (15), July 10-13, 16-17, 19-21, 23 (24-29), Aug 1-2 (32-33), 9-10, 13-14, 22-23, 24-25 (35-38, 41-42), Sept. 14 (49), Oct. 5 (57), 2018!

Inspired by Dogger807’s hilarious story, “Magic School Days,” here on FiMfiction. While there is humour (and tree-sap) in this story, that is not its only focus.

Wow, Sir Chaos Omega made a TV-Tropes page for the story! Thanks!

Published on the FiMfiction website with the kind forbearance of the copyright owners of My Little Pony (Hasbro) and the Harry Potter series (Scholastic Press).

The timeline for “My Little Pony” is messed up. That is, if you look closely, the order of the shows as aired is out of order of their logical sequence. Evidence: in Swarm of the Century (#10) we see the dresses that Rarity makes in Suited for Success (#14) — so unless Rarity time-travelled, #14 should take place before #10! Also, in The Ticket Master (#3), the other five seem to know Twilight and Spike quite well, yet in Boast Busters (#6) they don’t seem to know Twilight at all.

With careful attention to details such as those, you can put the three years of episodes prior to Princess Twilight Sparkle (#65, Season Four) into a two-year stretch of time. If you work hard enough, you can even squeeze them down to one five-season stretch of Summer to Summer.

I used the two-year seven-part timeline mapped out by deviantart’s tobyandmavisforever (do a Google search for “tobyandmavisforever mlp timeline” as the fastest way to find them). Thus, Harry arrives in Equestria shortly after the Crystal Empire two-part episode, and Twilight and Spike have been in Ponyville just under a year even though the Crystal Empire episodes start the third year of My Little Pony.

Lazy Pines is a small town in the high country of Colorado, easily overshadowed by the bigger sights to see along Colorado State 9. When influenza strikes the town hard, it is little more than a statistical blip in a typical flu season. No one thinks any more of it as the initial wave of infection passes ... until the other symptoms begin to manifest.

Meanwhile, during what should have been a routine trip to Canterlot, Twilight Sparkle stumbles upon a strange anomaly which turns into an all-consuming mystery. As she discovers the complex web of magic stubbornly maintaining this mystery's secrets, she grows worried what it could mean for herself and her family.

And as the residents of Lazy Pines struggle to understand -- or even believe -- what is happening to them, two worlds have irrevocably been set on a direct collision course.

Updates every other weekend.

Cover art by Mix-up. Please check out more artwork by this talented artist.

Now has its own TV Tropes page thanks to redandready45.

This story is a sequel to One Day I Found a Multiverse in My Pajamas

Becoming the Spirit of Harmony has given Sunset Shimmer more senses than she knows what to do with, which is why she keeps most of them out of her mostly-human self. That said, it's an opt-out process; she can't leave out something she didn't know she had.

In all fairness, would anyone expect to be able to detect shifts in nearby timelines?

Part of the Oversaturated World.

Rated Teen for certain bodily functions and worldlines. Graciously edited by themaskedferret.

The sirens are defeated and Sunset Shimmer has restored her magic. All's well and good, right?

Of course not. What begins with Sunset's friends wanting to have a very important talk with her will escalate until the fate of at least one world hangs in the balance.

Rated Teen for cosmic calamities, trace amounts of waifu theft, and a bit more skin than Hasbro is likely to show. Cover by iisaw.

The Story Shuffle short stories "Aftershock" and "Rock On" take place in the same continuity as this story. The background details of "Fish Out of Water" apply, but the story itself does not.

Sequel to The Queen of Hearts.

Queen Nymph has truly made her mark as the ruler of the changelings. Because of her hard efforts, her changelings never again have to worry of finding enough love to survive and now can enjoy new lives in Equestria. With the Changeling Kingdom no longer struggling, Nymph sets her eyes on her toughest challenge yet: To have her sister Chrysalis forgiven and able to return home with her. Queen Nymph travels to Equestria and swears to make her family whole again, no matter what it takes.

Thanks to musicman722 and atikin for proofreading the story. Thanks also to Feng Leigh for commissioning this awesome picture and to the artist SonicSweeti.

Oh...it's you. Back again to destroy me? I thought you'd learned your lesson when you put that idiot in charge and I let you leave. You saw how easily I could have killed you, but instead I showed mercy. A mistake apparently, and one that will be rectified.

But I don't need you anymore. I've found someone so much better. Her abilities have forced me to completely redesign my testing environment several dozen times. No matter how advanced I make the chambers, she solves them one after the other. I've never been more proud.

But My Little Killing Machine is growing bored. Turrets can only provide so much challenge. And my testing robots just can't keep up with her. But you...you cleared every challenge I threw at you, even the impossible ones. Gilda's been begging for a worthy final exam...

It seems you've come just in time. Do try not to die too quickly. She loves the thrill of the hunt. To keep you entertained, I might even share a few excerpts of my little girl's life as you hunt her down...you monster.

Part of the PWNY-verse.
Cover art by Professor Cat Pro.