Everyone in the Foundation knew 682. Most of them knew not to talk about him. Not to talk to him, more importantly, for fear of invoking his wrath. That creature made every single thing in the facility frightened, and they knew they couldn't do a thing about it. So what happens when he vanishes without a trace? Chaos. Absolute chaos. But this isn't about what happened there; this is about what happens to where he was transported. Which, coincidentally, is precisely the same thing.

Dedicated to everyone's favorite hard-to-kill reptile. You my boy, hamdoggz, for providing such an awesome rendition of it.

The royal court of Canterlot welcomes its newest member with open forelegs: the human philosopher Voltaire, from Earth.

On Earth, Voltaire is known as the greatest enemy of tyranny in the history of literature, and a legend in his own mind.

On Equestria, the court betting pool is giving him a week before the Princess banishes him to the Moon.

Note: This story doesn't have sequels per se, but there are a couple of short follow-ups set in the present day ("Parade Coverage" and "Secret Histories"), and a prequel of sorts in "At the Inn of the Prancing Pony".

TV Tropes page.