A chance meeting aboard a starship enroute to a dreaded reunion with her estranged father, sends Sera Janne Trellarian off on a thrilling, life-changing adventure with handsome Captain Eirik Sanderson to his home world, Valhalla - as the Concorde Alliance of Planets descends into chaos all around them. Is a dangerous rebellion brewing within their formerly peaceful home galaxy and if so, who is responsible? Or is the violence they're witnessing the work of powerful aliens, intent on invading their worlds? When Eirik disappears without a trace while investigating these disturbing issues, it's left to Janne's brilliant and impulsive younger sister TiAnn to save the day where many others have failed.