Moving to Jupiter's palace on Mount Olympus with her friends after being recognized as the Flame, Emily resolves to save her father from the CRU prison and sneaks away only to become entangled in a new invasion by the Nirads.

"A deadly plague has struck Olympus and is slowly aging and killing the Olympians. Emily can only stand by and watch as those she loves fade and die. But in one last desperate attempt to save those she loves, she journeys back to Earth to face the CRU, then back in time to confront Cronus, leader of the Titans and father of the gods"--