The Sweet Far Thing by Libba BrayDelacorte Press, 2007

In this, the last book in the trilogy that began with A Great and Terrible Beauty, there is much at stake for Gemma Doyle and her friends. This is a story of power, of using it poorly and using it well, of chaos and order, and of finding some balance, finding some path forward. As with the earlier books, the action moves between the magical land of the Realms and the everyday world of Victorian England, but here, the boundaries between the two thin.