A forgotten stage performer discovers a human child at the bottom of Canterlot's waterfalls, and he makes a fortune putting her on display.
(Please, tell me what you thought of this story. I want to know what you thought, even if all you have to say is that the story was boring and poorly written or morally reprehensible. I hope it's none of those, but I'd still like to know. We only improve with criticism, after all.)