Ghost Star — Roger Eschbacher

He'd fight an empire to save his family.When his father and crewmates are attacked and killed by a ruthless alien commander, young Galen Bray becomes the new captain of the GHOST STAR, a notorious smuggling vessel. Barely escaping capture, Galen sets out to rescue the only other survivor of the vicious attack, his sister Trem. Along the way, he discovers a mysterious people thought wiped out long ago, his family's surprising origins, and a destiny he never imagined...