"Good-bye, and good riddance" were the last words Gwen's twin ever said to her.

But there are bigger problems: an enemy army has revived a forbidden magic. They've invaded a neighboring country, and Gwen's kingdom will be next. Her only hope of salvation is a legend, so she sets out to find it.

The magic has many names, and many believe they know what it is—but Gwen begins to see that most are mistaken. At last it is the wind itself that forces her to make a choice: accept the forbidden magic and learn it, or die.

Gwen set out to save her people. Instead, she sets in motion a series of events that will have consequences bigger and more far-reaching than she ever imagined.