The novel “Engine City” by Ken MacLeod was published for the first time in 2003. It’s the third book in the Engines of Light Trilogy and follows “Dark Light”.

Ancient cosmonauts gave humans the chance to fly again among the stars without having to resort to the services of the saurs and the krakens and even managed to communicate on their own with one of the gods. They also received a warning about enemies who want to overthrow a balance that has existed for a very long time.

Various species of hominids were transported to the Second Sphere and built new cities on various planets. Nova Babylonia is the largest of these cities and becomes the center of a new series of changes that follow interventions from humans and from a new alien species that seems to have a lot to offer.