"The Venus Thulanium Mystery". Sponsored by: Ralston cereals ("Space Coins"/"Trading Cards" premiums). Explorer Frank Michelson is kidnapped to Venus and forced to reveal the location of his fabulous "thulanium" mine. This is a network, sponsored version of cat. #17567. Commander Corey and Cadet Happy have entered a warehouse on Planet Venus to rescue an abducted explorer. As they creep up a flight of stairs two criminals lurk above them behind a huge barrel…