Lost Fleet: Beyond the Frontier: Invincible

“Jack Campbell” is the pen name of John G. Hemry, whose books have been translated into fifteen languages and sold four million copies worldwide.  He is a retired naval officer who graduated from the U.S. Naval Academy in Annapolis before serving with the surface fleet and in a variety of other assignments. He is the New York Times bestselling author of The Lost Fleet series and The Lost Stars series, as well as the Stark’s War, Paul Sinclair, and Pillars of Reality series. He lives with his indomitable wife and three children in Maryland.