Dragon Ghosts (The Unwanteds Quests, Bk. 3)

Devastated by loss and hampered by a civil war in the Land of the Dragons, Fifer and Simber struggle to lead the rest of their team in a seemingly hopeless search for Fifer’s twin. Meanwhile, Thisbe, pounded by images of Grimere’s dark history and her growing feelings of abandonment, considers leaving Rohan behind in a desperate gamble that could lead her home...or to her death. Back in Artimé, chaos reigns. A new mage steps up to restore the magical land, but finds unexpected trouble at home and discovers—too late—that the Revinir’s controlling grip has reached into the vulnerable heart of Artimé.