When a portable teleportation device is created. Twilight soon discovers that she's doomed her friends to death in three days! (Based on Expiration Date)
Twilight Sparkle: Princess, Alicorn, Friend. But Ms. Sparkle has made a terrible choice, one she's had to live with, but now she has to save the multiverse. Even if it kills her. (Based on Bioshock Infinite)