"The Face of Fear"
Dr. Kane, a criminal scientist working with the criminal cabal Intercrime, gives himself the power to radiate Green Kryptonite rays. Calling himself Dr. Kryptonite, he traps Krypto and lures Superman into his clutches.
"Supergirl's Black Deeds"
Linda Danvers finds herself in the grip of uncontrollable impulses that cause her to do unkind or even dangerous acts, such as stealing a trophy or rupturing a tank of chlorine gas underwater as Supergirl. As a result, she is expelled from Stanhope. But the evil impulses have been the work of two game-playing aliens, Jarka and Korlo, who have been using a mind-compelling ray on Supergirl in a chess-like situation. Korlo, who plays in defense of Supergirl, makes it appear that another girl on campus took the trophy while sleepwalking, and Linda Danvers is reinstated. Supergirl remains ignorant of the existence of Jarka and Korlo.