The final fight for control of humanity begins now. The United Terran Federation is on the brink of collapse after a devastating attack by the Eastern Star Alliance that has left four planets depopulated and uninhabitable. Terrified member worlds are fleeing from the Federation and the remnant of their once-mighty fleet has retreated to the last place they are welcome: Earth. Out of options and time, the Federation turns to Admiral Jackson Wolfe and his new superweapon that could be the key to turning the tide of the war in their favor. Admiral Wolfe knows that no matter what, the fate of humanity will be decided in the coming battle. Empire is the final book in the bestselling Black Fleet Saga.