Ronin — Edward W. Robertson

The Hive has survived their first fleet action against FinnTech. But in the process, they've lost the Hive itself. With their manufacturing base in Finn's hands, it's only a matter of time before they're outnumbered and destroyed. As Rada searches for a path to victory, she stumbles on a horrifying secret: the aliens who've kept humanity confined to the Solar System are about to make their move. To stand against the coming threat, the Hive will have to bring FinnTech to the peace table. If they fail to stop the fighting, no matter who wins the battle for the Solar System, they'll lose the war for survival.