The Return of Lim Sun
Written by
Willie B. Rensie (writer and artist)
Released 12/1939
From Wonderworld Comics #8 and reprinted in Blue Beetle #4 (10/1940) - The diabolical Lim-Sun is back with a plan to help a would-be dictator take control of a south-east Asian island nation. K-51 and Z-19 are out to stop her.