Robert Kirkman’s bestselling comic series The Walking Dead, which already migrated to TV with the upcoming AMC series, will now spawn a trilogy of original novels to be published by Thomas Dunne books, an imprint of St. Martins Press, starting in 2011. The books will be conceptualized and outlined by Kirkman before being developed by  horror novelist Jay Bonansinga (Perfect Victim). The books’ plots will take place in the “universe” or context established by Kirkman’s comic series, which is currently in its 77th issue and has sold approximately three million copies worldwide. AMC’s The Walking Dead premieres on October 31.