Fate Breaker Book 3 Realm Breaker

Corayne is alone, her blade broken and her allies scattered. Her only consolation is that she now has the prince consort's sword, the last of its kind left in existence. Without it, he can't open any more portals. Without it, he can't rip the world apart at its seams. But the queen will not be defeated so easily. She will burn the very heavens to bring down Corayne - and bring forth her demon god, ready to claim the entire realm for his own. In the final clash between kingdoms and gods, all must rise to fight - or be destroyed. From a sprawling cast of knights, witches, monsters, gods, and dragons to an exquisitely slow-burn villain romance, Fate Breaker is an unmissable YA epic fantasy perfect for fans of the huge worlds of Sarah J Maas and the found family quests of V. E. Schwab.