When Crest leads an unlikely group on his search for the Planet of Eternal Life, they end up on a version of Ferrol that shouldn't exist. Are they in a parallel universe that will somehow let them find immortality?

Meanwhile, Sid comes face to face with his greatest foe...or so it seems. Ivanovich Goratschin killed Sid's childhood friend, but he's been dead for a long time. His twin brother claims to be making a fresh start—but how much can Sid trust him?

Far away in the Vega system, Rhodan's crew, lost in space and time after landing on the Ferron world of Reyan, discovers a conflict brewing between the water-dwellers and the land-dwellers, two groups descended from the original colonists.

Back home, Dr. Manoli and the historian Aescunnar have begun a space journey of their own as they attempt to learn more about the Arkonides' prior activities in Earth's solar system. Their research soon brings them to Saturn's moons, where danger and an uncertain fate await them.