Rowan follows a slim clue to track down the wizard who threatens the world. She travels to the South where she learns the true nature of wizards and dragons.
This cannot be the last book in the series because it does not conclude the story. But this book was published in 2014 and there is not yet a fifth book. Rosemary Kirstein’s blog is active and she says she is still working on The Steerswoman series. So hopefully we’ll get more soon!