Xinan Yang

Under Heaven is a historical fantasy novel by Canadian author Guy Gavriel Kay. Kay's eleventh novel, it was published in April 2010 by Viking Canada. The work, set in a secondary world based upon Tang China, is a departure for Kay in that it takes place outside of a setting based on Europe or the Mediterranean. It recounts events based on the An Shi Rebellion. Under Heaven takes place in a completely new world, as seen by it having only one moon as opposed to the two moons normally present in Guy Gavriel Kay's works. In 2013 he published a second novel, River of Stars, set approximately 400 years later in the same world.