The novel writing in Taiwan in the 21st century has the characteristics of reappraising and reconstructing Taiwan's history in the process of transitional justice. Against this background, the War-of-Resistance novel "Shadows of Spies in Hengyang City" published in 2015 appears "inopportune" in the literary field of contemporary Taiwan literature. In response to the anomalous phenomenon, this paper argues that if the cross-strait relations have been taken into account, then this is actually very "opportune." Debuted in the 1960s, Shangguan Ding, a writer of wuxia fiction, revisits the history of the Second Sino-Japanese War. In the novel "Shadows of Spies in Hengyang City", he reconstructs the image of the alliance between the Kuomintang and the Communist Party of China through his rewriting the Battle of Hengyang in 1944, and envisions the Kuomintang- Communist relations in the future through his portraying the handover of Hong Kong in 1997. This paper indicates three aspects of the contemporary significance of Shadows of Spies in Hengyang City: first, it re-examines the wuxia and War-of-Resistance novel as literary genres during the White Terror; second, it measures the changes of Kuomintang-Communist relations against the novel writing in Taiwan; and third, it brings a new reflection on popular literature and historical novels.