In Northern Ireland in 1944 three girls collect data on the activities of their German instructor who they suspect is a Nazi spy.
- ISBN10 0525666842
- ISBN13 9780525666844
- Publish Date 14 June 1980
- Publish Status Out of Print
- Out of Print 25 October 2004
- Publish Country GB
- Imprint Dutton Books
- Format Hardcover
- Pages 153
- Language English