New York: Elsevier / Nelson, (1980) dj. Hardcover first edition - Set in Belfast, Ireland in 1944 during World War II. When a timid and clumsy young German woman is hired at their school as a substitute teacher, three friends become convinced she is a spy but what is a game to them - following her and disrupting her life - becomes persecution to the teacher. 153 pp. ISBN: 0-52566842.