Note: This is a spiritual crossover with Welcome to Night Vale, and no knowledge of the original work is required to enjoy this one.
Rarity runs Pony Vale's premiere – and only – radio show, and sees informing her listeners of the town's daily happenings as her highest priority, be it giving updates on the town's night howler infestation, discussing the latest advances from the secret lab miles under the town, or just translating the town council's meeting minutes into something the average mind can comprehend.
But now, the town news has gotten odd: the sun refused to rise, strange(r) lights have been seen in the sky, a unicorn with perfect mane and teeth has come to town, and some ponies are even claiming that magic exists. At least she has the town council to help her make sure she reports the town news correctly.
Nopony ever said being a voice on the radio was easy.