Death Lord Umbriel. The Oblivion Gate. The final showdown in the abyssal hells . . .

Gray Lexly and the rest of his class are tasked with the impossible. They must train themselves to dive into the deepest levels of the abyssal hells and face off against the last two remaining Death Lords who plot to invade the realm of the living.

Fortunately, Gray and his classmates will have help from the god-arcanists of old. Together, they form a strike force to defeat the most powerful arcanists who dwell in the accursed land of the dead.

But the abyssal hells are unforgiving, and elder creatures stalk every corner of the realm. One wrong move could result in oblivion, the ultimate death—where their souls are destroyed forever.

Having conquered fear itself, Gray attempts what has never been done before. He intends to stop oblivion, or die trying.