Super-Mystery Comics v1 #1

Super-Mystery Comics #1 is an anthology featuring multiple action-adventure heroes and stories. The issue introduces characters including Magno the Magnetic Man, Q-13 (an American spy-fighter), Corp. Flint of the Mounties, Vulcan, and "Sky" Smith. One story follows Corporal Flint as he uncovers a criminal plot involving a deadly coffin filled with pitchblende and radium, used to terrorize prospectors away from a hidden gold lode in the Arctic, with the case ultimately closed by the Royal Northwest Mounted Police. Another features Q-13 in an adventure at El Citado Airport involving treachery, torture, and a woman named Countess Dragoff.