When a mysterious enemy strikes at the very foundation of the Ascendancy by widening the rifts between the Nine Ruling Families and Forty Great Houses, Thrawn and his allies must decide what matters most--the security of their family or the survival of the Ascendancy itself.

Timothy Zahn is the author of more than sixty novels, nearly ninety short stories and novelettes, and four short-fiction collections. In 1984, he won the Hugo Award for Best Novella. Zahn is best known for his Star Wars novels (Thrawn, Thrawn: Alliances, Thrawn: Treason, Thrawn Ascendancy: Chaos Rising, Heir to the Empire, Dark Force Rising, The Last Command, Specter of the Past, Vision of the Future, Survivor’s Quest, Outbound Flight, Allegiance, Choices of Onel, and Scoundrels), with more than eight million copies of his books in print. Other books include StarCraft: Evolution, the Cobra series, the Quadrail series, and the young adult Dragonback series. Zahn has a BS in physics from Michigan State University and an MS from the University of Illinois. He lives with his family on the Oregon coast.