The Girl Who Invoked Fire continues the odyssey of Jian Byrne, an unassuming but gifted Irish orphan who bears the scars of lifetimes. Guided by unseen forces, Jian is shown visions of her mother as a young woman, which spurs her search into her family's disappearance and beyond into life's profound secrets. She meets a survivor of human trafficking and in a dreamlike journey into a realm of memory relives the girl's rescue. She joins the battle against the traffickers, and the evil that ensouls them.