The Protector and the Peacemaker (The Slayer and the Sphinx, #3)

Every War Must End. Porter, Sarah, and their friends are running out of time. Arch-Mythic Rayalga plans to lead his army against humanity and lay claim to the earth, and the Slayers are marching to meet them. Porter and Sarah must hurry if they want to end the war without needless bloodshed… but how? The Master Slayer, Drake Mortoph, will do anything to stop them, and he has a secret powerful enough to make history repeat itself.