Karl Schroeder's Vigra saga establishes itself as an SF saga of the same order as LeGuin's Earthsea stories, Asimov's Robot stories, and Niven's Ringworld stories. -- Ernest Lilley, SFRevu
The Queen of Candesce doesn't provide everything the prequel's fans may expect, but it offers a generous abundance of reading pleasure, and its confirms that Karl Schroeder belongs in the front ranks of SF world-builders. -- Cynthia Ward , Scifi.com
Sun of Suns was a lot of fun, and Queen of Candesce is even better. -- Fascination Place