HIDDEN MOON by James Church. New York: Thomas Dunne Books, 2007, 293 pp., $23.95 (cloth)

THE WANDERING GHOST by Martin Limon. New York: SOHO Press, 2007, 314 pp., $24 (cloth)

In this tersely written sequel to "The Corpse in the Koryo," the North Korean cop who goes by the name Inspector O returns for an encore.

O's been ordered to investigate the robbery of a foreign bank in Pyongyang — an exceedingly rare crime in itself in the People's Democratic Republic. To make matters more confusing, one of the robbers fleeing the crime scene was squashed flat by a public bus running the wrong route.