Synopsis
The children go to the quarry at night and discover Grainger's secret.
Further Information
Other Archive resources
Look and Read | Spywatch: 09: The Secret Quarry
The children discover a tunnel leading from an abandoned quarry to Westbourne Hall. Grainger catches the boys, but they are rescued by Luigi. The children's confidence in their GI friend is misplaced.
Look and Read | Spywatch: 08: The Pilot
The children are responsible for the capture of the German pilot. Mary is determined to find out what Grainger is up to, and follows him on one of his nighttime excursions.