It has been over 29,000 years since the demons were banished to the underworld, their new Queen has claimed the Demonic throne and now rules with fear. The angels have prepared as much as they could, but it may be too late. Jax'zulez, the Demon Queen, stands ready at the gates with her army, waiting to open the portal and restart the war that had ended abruptly all those years ago. Austin, the Leader of the Angels, hopes his proposal to the fairy's will convince them to help or all may as well be lost.
Reeling from a war that threatens to rip nature apart, a difficult decision is made. Elsewhere, a new king rises to the throne through an ancient law of the land. Meanwhile, the Apocalypse and the end of the world as we know it marches closer every second. And at the center of everything stands Percy Jackson.