Yesterday, she was a sweet, somewhat old-fashioned exchange student trying to find her place in a strange culture. Today, Centorea Shianus is a new world's greatest terror.
There are those who say that marks are destiny. But there is one who believes destiny is a trap. And there is nothing she will not do to make the world free.
When a new mission for the Element-Bearers (from an unexpected source) arrives three weeks after Twilight's ascension, she finds herself forced to confront a pair of questions: what truly makes an alicorn? And what happens if it goes wrong?