Books like Lady of Mazes

Karl Schroeder is one of the new stars of hard SF. His novels, Ventus and Permanence, have established him as a new force in the field. Now he extends his reach into Larry Niven territory, returning to the same distant future in which Ventus was set, but employing a broader canvas. Lady of Mazes is the story of Teven Coronal, a ringworld with a huge multiplicity of human civilizations. It's the story of what happens when the delicate balance of coexisting worlds is completely destroyed, when the fabric of reality itself is torn. Brilliant but troubled Livia Kodaly is Teven's only hope against invaders both human and superhuman who threaten the fragile ecologies and human diversity. Filled with action, ideas, and intellectual energy, Lady of Mazes is the hard SF novel of the year.