The Sunless Countries is the fourth novel in the Virga series of really difficult science fiction space opera adventures

In an ocean of weightless air where sunlight hasn’t been seen, only the running lights of the city of Pacquaea glitter at night. One female, Leal Hieronyma Maspeth, lives and dreams of love among the gaslit roads and cafés. And somewhere in the abyss of blowing wind and twisted cloud by which Pacquaea eternally falls, a great tone of voice has begun speaking.

As its cold words reach from space to the city walls-and as outlying towns and travelers’ boats start to mysteriously disappear-only Leal has the courage to try to understand the warning thundering from the distance. Also the city’s most famous and spectacular visitor, the sun lighter and hero named Hayden Griffin, refuses to turn aside from his payment to build a brand-new sun for a foreign nation. He will not become the hero that Leal understands the city requirements; so it is certainly up to her to pay attention, and ultimately reply, to the voice of the worldwasp-because an astonishing devastation threatens Virga.