ACTION COMICS (1938) #31

Superman enters a small town where every person falls asleep immediately upon arrival. What—or who—is trying to take over Brentville while everyone sleeps? Superman: Clark drives Lois to the town of Brentville for a holiday, but upon arriving they find all the inhabitants asleep due to the effects of a strange gas. Lois also succumbs but Clark is immune, so he obtains a couple of gas masks at a fire station, then drives to a house on the outskirts of the town. The house is owned by Professor Hunter and his assistant Kolb. When Clark phones the sheriff of a neighbouring town for help, Kolb tries to knock him out, but Clark manages to get Lois and himself out of the house.…