Battle Magic, a fantasy novel by young adult author Tamora Pierce, was released by Scholastic on September 24, 2013.The book follows Pierce's characters Briar Moss, Evumeimei Dingzai (nicknamed Evvy), and Rosethorn after the events of her 2001 novel Street Magic. The action is set in the fictional countries of Gyongxe and Yanjing as they become embroiled in war. All events take place two years before Pierce's previously published Emelan universe novels The Will of the Empress and Melting Stones. Source: Wikipedia (en)