(KRT5) KRT BOOKS STORY SLUGGED: CARD KRT PHOTO BY JOHN LEE/CHICAGO TRIBUNE (March 14) Orson Scott Card is the author of “Ender’s Game” and is touring to promote his latest sci-fi novel “Shadow of the Hegemon.” Because of time taken from his family for the tours, Card says this will be his last publicity tour. (TB) AP PL KD 2001 (Vert) (gsb)