"An eye for an eye makes the whole world blind," or so the saying goes. It is a reminder that revenge, no matter how justified it may seem, never solves anything. It is also completely irrelevant to this story.

Instead, we join the Great and Powerful Trixie, who has once again returned to Ponyville to find Twilight Sparkle. This time, however, she comes seeking the help of a friend. Something old and dark is stirring, and she's convinced it's out for blood.