The opening of the Empire has also meant the reintroduction of the species who live there. It's been over a thousand years since Equestria has been through this particular migration -- more than enough time to forget how hyper-territorial, angry, unreasoning, and just plain foul these travelers are. But it's finally the right season again, and that means Ponyville is about to get a refresher course in dealing with the second-worst thing to ever come out of the North.
...well, maybe first.
(A stand-alone, no prior-reading-necessary part of the Triptych Continuum, which has its own TVTropes page and FIMFiction group: new members and trope edits are welcome. )
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