Shadowplay is the second book in the Shadowmarch tetralogy, by Tad Williams. It was released in hardcover in the US in March, 2007 and has been released with a region-specific hard cover (see illustration below) in the United Kingdom (March 1, 2007). Book one, Shadowmarch, was published in November 2004. Book three of Shadowmarch, Shadowrise was released in March, 2010.