The adventures of Christiaan, Daniel, and Hannah continue on the planet Hyperios. It’s the third planet among the 12 Planets the three Tellurians have visited. It doesn’t go well. They endure crisis after crisis. When Christiaan mysteriously vanishes while trying to return to Schyllus, Daniel goes in search of him, leaving Hannah all alone on Hyperios — for decades — just as things go from bad to apocalyptic.
Daniel eventually finds his dad in a strange solar system in the unknown part of the universe called Eternity, where phantasmal laws prevail. There, they encounter a mysterious race of humans called the Vandekirians who hold answers to the origin and true purpose of the 12 Planets.
Meanwhile, in the absence of the three Tellurians, Earth faces unprecedented upheavals as the Travelers from Schyllus face opposition from the 144 — but really masterminded by the malevolent Torajii — with catastrophic consequences. And Torajii doesn’t stop with Earth. He births new enemies more powerful than himself — enemies who want to make the 12 Planets their playthings.