Olympus has fallen. The gods have been driven into hiding. The world teeters on the edge of destruction.
After barely surviving the battle for Olympus, Percy Jackson finds himself thrust into a new war—one where the gods are no longer in control. With Zeus dead and Kronos seated on the throne of Olympus, the remnants of the Olympian Council and their demigod allies have no choice but to retreat to the Underworld. But running is not the same as surrendering.
As Kronos solidifies his rule, Percy, Artemis, and the remaining gods must gather their strength, forge unexpected alliances, and uncover the means to reclaim Olympus before all of existence falls to chaos. But with the Titan Lord's influence growing stronger and his armies sweeping across the mortal world, time is running out.
Percy's journey is far from over. The cost of victory has never been higher, and the fate of the gods—and humanity itself—rests on the shoulders of those who refuse to give up. But as the lines between friend and foe blur and the weight of prophecy looms over them all, one question remains:
Can they truly win this war? Or is this the end of Olympus as they know it?