Another young adult set of novels with magic at it's center. This time, the magic pretty much holds together, with well thought-out rules and consistency in how they're applied, which is nice.
Magic can only be accessed by the written word and only mages are allowed to read & write because if commoners do they can trigger a catastrophic release of energy that has the potential to level whole villages. Wren, a commoner, accidentally sees a piece of paper with writing on it and, later that day, accidentally saves her family by saying a single word out loud. This triggers an investigation by the mages who assume she is a previously unidentified mage because her "spell" included control that only mages can have. She is rushed off to the Academy where they discover that she can not read nor write but can speak spells where all other mages have to write them.
The books follow each of her four years at the Academy where she learns how to use her magic in a world where she is unique. And, of course, falls in love with the Prince (who she initially dislikes intensely). Various political factions first try to eliminate her and then try to use her for their own purposes, so she is alternately protected and threatened and creates her own alliances within the Academy and, eventually, with one of the powerful houses that control the government. All of this while a seemingly interminable war rages on the border.
Ultimately, I thoroughly enjoyed 98% of these books. My quibbles with it are: eventually Wren gains almost unlimited powers and, while the author manages to make this fairly logical within the framework of magic she's set up, it still feels contrived; and, near the end of the series, Wren & her boyfriend do the most stupid thing they can think of (even given that teenagers can do pretty stupid things) and I had to put the book down for a few weeks before I could finish it.
I would recommend these books overall, even for those of us who haven't been young adults for a long time.