The end is here, and Asmodeus is out for blood. The Song of War follows the continuing adventures of Carrie and her friends. In the time since the events of The Song of Hadariah and The Song of Vengeance, Asmodeus has been growing his army and is determined to get his vengeance for all that his daughter Emilia and her friend Carrie have done to stop him. Hampered by the fact that he is now confined in a mortal body, Asmodeus fights to keep his power, and hide his limitations. All the while, he is inflicting as much death and destruction on all who dare cross his path. Meanwhile, Carrie, Lindsay, Rebecca and Emilia are all determined to live their lives in peace, ignoring the threat looming over all of them and those they love. But this peace can not last. Soon, Carrie and her friends are dealing with the pain of loss, and it is becoming increasingly clear that they may not make it out of this alive. Can they defeat Asmodeus once and for all? Can they finally bring peace to the land, and go back to their lives in one piece?