Whether rain, sleet, snow, or a devilishly handsome three-headed hell hound, the mail must go on. That’s the promise Derpy (Ditzy) Doo made when she joined the delivery mares’ association of Equestria, and that’s the oath she’s determined to keep.

Even if it means she has to, literally, slog through the hidden depths of hell.

Inspired by A thread by BoltStrike58 (spoilers)

Proofreading by Mulberry