Starman in "The Adventure of the Earthquake Terror"
Starman vs. Captain Vurm, a scientist with a device that causes Earthquakes.
Steve Carson and the Federal Men in "Plots and Counter-Plots on Embassy Row"
Steve Conrad in "Pyramid Sacrifice"
Hourman in "The Rich Robbers"
Hourman thwarts criminals stealing a formula from Bannermain chemical.
Paul Kirk in "The Parking-Ticket Murder"
Cotton Carver in "The Deadly Love Charm"
Sandman in "The Voodoo Sorcerer"