Rife with hostile cultures and outright enemies, the Unknown Regions holds many perils for Luke Skywalker and the Jedi, searching for Zonama Sekot, the living planet that may hold the key to dealing once and for all with the Yuuzhan Vong.

Meanwhile, on the edge of the galaxy and in the heart of a trusted ally, old enemies are stirring. The Yuuzhan Vong have inflamed long-forgotten vendettas that are even now building up to crisis point. And as Han and Leia journey on their quest to knit the unraveling galaxy back together, betrayal and deception await them. . . .