Twenty years after the events of the first Summoner, the province of Halassar in the Galdyr Empire became the birthplace of something extraordinary: the priestesses of the goddess Laharah identified an infant named Maia as the reborn goddess herself. Armies rose in her name under Prince Taurgis, the Emperor's brother, and Halassar broke free of Galdyr. Maia rules it now as queen, accompanied by Sangaril—a Shadow Clan assassin of the Munari who was sent to kill her as a child and became her sworn protector instead. When Maia activates a rune stone on the pirate island stronghold of Prince Neru on the Isle of Teomura, she gains the ability to transform into one of four Summons—and the full weight of her destiny begins to become clear.