The Night's Dawn Trilogy

This sprawling narrative deals with a far future where humanity struggles and wages war against past souls flooding back into the land of the living via possession (Al Capone is among the returnees). And that's just the beginning. Hamilton's future is expansive and primarily optimistic, with huge sentient space-cities that can closely resemble a natural Eden. He extrapolates on current trends concerning the blurring of technology with biology, and environmental devastation. But Hamilton pulls no punches on humanity's darker side. Poverty, sexual exploitation and cruelty still dog our civilizations in Night's Dawn.