Condemned: Book 8

Hearth—a unique autonomous city existing outside the bounds of any empire. Neither light nor dark. A city-state that has been declared a free economic zone, home to the only portal in the land of the Light capable of communicating with the dark lands. It would seem like an ideal opportunity for development, but fate once again has other plans. Destroying the aliens gave rise to a new disaster, even greater in scale, which now threatens to wipe all life from the face of the planet. Once again, the former doomed soldier must take matters into his own hands and save the world from new enemies. But this time, he's not alone. He has a whole city behind him!