Nebula Award-winning author Walter Jon Williams returns to the sweeping space opera adventure of his Praxis universe with Impersonations, an exciting new novel featuring the hero of Dread Empire's Fall

Having offended her superiors by winning a battle without permission, Caroline Sula has been posted to the planet Earth, a dismal backwater where careers go to die. But Sula has always been fascinated by Earth history, and she plans to reward herself with a long, happy vacation amid the ancient monuments of humanity's home world.

Sula may be an Earth history buff,...