In the Void, it's conquer or be conquered.Earth cities are transported to a Void dimension, and billions of people struggle to survive with limited food and water. Peter King, a smart and tenacious engineer, is recruited by the free city of Chicago to help conquer nearby cities.But monsters lurk in the Void.Peter must survive the dangers that await him: nuclear radiation, Russian spies, and cruel dictators. Can he unite the cities before the Void consumes them all?Cities in the Sky is a gripping, fast-paced sci-fi thriller for fans of action-packed, civilization building litRPG and post-apocalyptic fiction.