Sometimes to defeat a monster, you must become one. Invaders are spotted off the coast of Jakobden. Kinneret, Oron, and Calev sail for Silvania to negotiate with the king for military support. But when Oron goes missing, their quest turns into a battle that will become legend. Ona hangs onto life by a thread. Captured by Invaders, she will end up either on a spit or in a slave market. When the night of her death arrives, so does a surprising ally. Together, the fierce women and men of the Uncommon World unite to rage war in an ancient, cursed forest, fighting against a monster who has reigned for one thousand years. Jump into this adventure today for the epic conclusion of the series and the finale for all your favorite characters. Perfect for Tamora Pierce, Leigh Bardugo, Naomi Novik, and Lindsay Buroker fans!