Magnitude — A.C. Hadfield

The war with the deadly Host continues, only now they have secret alien allies bolstering their efforts. Our former general has defected. Our fleet of battleships took a battering in the first battle. And I'm trapped in another part of the galaxy trying to find my parents and, ultimately, my way home. 

The situation looks bleak, but I have ancient Navigator technology at my disposal, and I'm mad as hell. Then there's this weird alien information bomb inside my head that I can't access despite it suggesting great power. 

With new enemies lining up to thwart my plans, I'll need to muster all the courage and skill if I'm to beat the odds and get back to Coalition space before the Host overwhelm my people and take over the galaxy. If the Host win, the Coalition worlds will burn. Its population will be slaughtered, and there will be no hope for any of us. 

But I have a ragtag crew of heroes willing to push back against our foes regardless of the odds. The Coalition will prevail once more, even if I have to die for the cause. 

For fans of Star Wars, Firefly, Battlestar, and Guardians of the Galaxy.