Adventure Comics (1938) 78-A

Starman in "The Little Man Who Wasn't There"
Starman takes on wealthy crooks who pretend to rob themselves.

Hourman in "The Man who Played Death"
Hourman vs. Falstaff, a crooked murderer.

Genius Jones in "The Case of the Slap-Happy Jappy"

Shining Knight in "The Black Baron"
The Shining Knight vs. a phony knight.

Manhunter in "The Lady and the Tiger"

Sandman in "The Miracle Maker"
Sandman and Sandy vs. Mando the Mystic, a phony magician.