“Twenty million pounds to fortify Singapore … Twenty minutes for complete destruction … Twenty days to embroil the world in war!” That fateful warning meant that Britain’s proud new naval base was doomed—doomed by the Circle of Death! And when the masked members of that veiled power learned that “Coffin” Kirk stood in the path of their poisonous fangs, they only laughed sardonically. For Kirk was their most hated enemy. Two scores would be settled with a single blow!

• Download “Skyguns of Singapore” (June 1938, Flying Aces)