This is the cover (page 0).
History:
Around midway through the Great War, the allies had developed fairly effective countermeasures against the zeppelin raids from the Central Powers. In response German Engineers pushed the limits of aviation technology and created the Hight-Climbers. These airships could attain an altitude of 20,000 feet, twice as high as any other aircraft at that time. L55 was one of the hight-climbers in the first fleet of 11 to attack Britain.
Imagery:
Just trying to create a dramatic image for the cover. Most of these pages were drawn in a sketchbook with page dimensions of approximately perhaps 10 centemeters by 6 centemeters. Hence these are quite small illustrations for the most part.