Zeus is afraid. And that makes him dangerous.



Hermie and Hestie never wanted to be heroes.



They never asked for prophecy, divine politics, or a Titan on the run.



But when Zeus learns of Apollo’s vision—of the twins standing beside Prometheus—he takes drastic action. Thanatos and Therese are imprisoned on Mount Olympus, held as leverage.



Now the twins have one choice:



Find Prometheus before Zeus does.



With the help of a forbidden spell, a hidden warning from Hecate, and allies they aren’t sure they can trust, Hermie and Hestie embark on a globe-spanning search that will force them to confront what destiny truly means.



But as secrets unravel and prophecies reveal double meanings, one truth becomes clear:



Prometheus may not be their enemy.



And the real threat to Olympus may already be inside it.



In this electrifying eighth installment of The Underworld Saga, the next generation steps into the fire—and discovers that freedom always comes with a cost.