For ten thousand years Nova Babylonia has been the greatest city of the Second Sphere, an interstellar civilization of human and other beings who have been secretly removed, throughout history, from Earth.

Now humans from the far reaches of the Sphere have come, to offer immortality-and to urge them to build defenses against the alien invasion they know is coming.

As humans and aliens compete and conspire, the wheels of history will lathe all the players into shapes new and surprising. The alien invasion will reach New Babylon at last-led by the most alien figure of all.

The Concluding Volume of the Engines of Light

"Science fiction's freshest new writer." --Salon

"Ken MacLeod's novels are fast, funny, and sophisticated. There can never be enough books like these."--Kim Stanley Robinson

"One of SF's hottest new authors."--"Locus

Praise for "The Engines of Light

"Ken MacLeod doesn't just create believable futures--he breaks them down to explain what makes them tick." -"Wired on" Cosmonaut Keep

"A portal to a deeply imagined future history that parlays X-Files paranoia about Area 51 and alien Greys into a vast interstellar community watched over by microcosmic gods." --Paul McAuley on "Cosmonaut Keep

"Marvelously inventive."--"San Diego Union-Tribune on "Dark Light

"MacLeod at his strongest: clever, passionate, and committed." --"SFX on "Dark Light