The day of Nightmare Night, Derpy is stuck working deliveries. Having waited till the last minute, she doesn't have a costume for trick-or-treating yet. With that in mind she hurries up to finish with her last package.

In hindsight, she really should've skipped it.

Warning: contains diapers, diaper usage, ABDL content, spoopiness.

Sunset Shimmer has been happily living in Canterlot as a rather normal person for three years now. A normal person living with her dedicated girlfriend and working on beginning what she hopes to be a long, solid career. She's been living her dream of a normal person.

Then, on a dark and stormy night, as a lot of stories start, the harbinger of her past comes back for her.

Rainbow Dash, an old friend and hunter extraordinaire with a task that seems simple enough on paper.
Find Shining and Twilight Sparkle.

Too bad anything involving monsters is ever anything but.