Affinity Heart knows she’s not her sister.

Flurry is better at magic, better at making friends, better at having fun and she’s even an alicorn. Affinity doesn’t hate her for it, in fact, she refuses to let herself feel that way. Has that led to her being a little more reserved then her sister? Maybe. But as long as Affinity can call herself a good pony, she’ll bottle up all the feelings she can.

But then, strange things start to happen. A disguised monster attacks Affinity while in the library. Figures are seen creeping around the edges of the Crystal Empire. Cadence is attacked by warriors who melt away into nothing before they can be captured. Top all of that off with the Empire hosting the Festival of the Two Sisters for the first time and the royal family have quite the summer ahead of them.

Affinity is determined to help, even if she knows she won’t be as useful as the rest of her family.

But what if she could? What if she could claim the power that should be hers by birthright? When a shadow from the empire’s past offers to help her, Affinity sets out to create an instrument capable of all this and more: The Crystal Staff