EDIT! This series is now open universe! You want to make a spinoff version? You totally can! You want to self insert yourself into their shenanigans? You can do that too! The characters and story are now completely public domain. I've lost interest in the series but if for some reason you actually like it enough to write your own take on it, you're more than welcome to! I'd love to read them, so feel free to link back and please remember to credit me/the story as the source!
Thestrals were defeated by the Princesses Luna and Celestia a thousand years ago, and are thought extinct. But what will happen when one moves to Ponyville? Disguised as an earth pony, Acrylic does her best to fit in. The burden of hiding her wings weighs heavily on her, and keeps her from becoming truly close to anypony. Can she keep the secret, or will she expose her entire race?