Twilight Sparkle and Fluttershy are at the mercy of a flock of the rare, bat winged Large Mambas. This is the best short description I can come up with. Just read the title.
Other than a Cybertronian writing utensil, I am an avid brony that is partial to writing novice-level stories whenever an idea pops into my head, whether I like it, or not. It's mostly the latter.