Dynamic Comics #9

An anthology featuring four stories: Dynamic Man thwarts a criminal plot involving a cat woman and ropes; Yankee Boy intercepts enemy aircraft and documents during a wartime mission, signaling American planes to avoid a trap; The Master Key follows a hero battling a mad scientist named Dr. Hahn who has kidnapped a family and holds them for ransom, with the hero ultimately defeating the villain; and Lucky Coyne pursues his adventures in this collection of Golden Age action tales.