A graphic adventure from Thriller Picture Library #314, April 1960 - 64 pages.
In the early days of the Africa Campaign, two British agents were hard at work behind enemy lines. One was Jim Jarvis and the other was David Doughty, Spy 13. When Jarvis goes missing, Spy 13 wants to learn what happened to his colleague. Even more important, though, is investigating rumors of a new and powerful German weapon about to be used in the area.