How much can humanity consume? Earth is a solitary realm. She has a long past, most of it devoid of humanity. Thanks to plate tectonics and the unique chemical ability of sediment and stone to record images of Earth's past, we know that other creatures once roamed the plains and forests, or swam the deep oceans of our world. The Kansas prairie is full of fossils from the Permian geologic period. This was a key time in our evolutionary history. The diversification of amniotes into mammals, turtles, lepidosaurs, and archosaurs was a key to our evolution. But 250 million years ago, something happened—a runaway greenhouse effect caused by an explosion of methane in the atmosphere—that caused nearly all life on Earth to vanish. It took 30 million years for Earth's ecosystems to recover.
In A Dark and Hungry God Arises the third book in Stephen R. Donaldson's The Gap Cycle humanity stands at the door of an extinction event that comes from the deep dark of space. In this book we get closer to the real story promised us in the first book of The Gap Cycle. Morn Hyland's crisis aboard Captain's Fancy becomes an existential fear of genetic mutilation by the Amnion. A personal horror that all of humanity faces if the UMCP cannot prevent it.
The story unfolds on Billingate, a space station where humans and Amnion trade secrets and currency for profit, pleasure, and power. At Billingate we are re-introduced to Angus Thermopyle who has become a welded cyborg under the control of Hashi Lebwol and Warden Dios. As a tool for the UMCP Angus has a singular mission; destroy Billingate, even if that means sacrificing Morn Hyland and the crew of Captain's Fancy in the process.