Cover pencils by Curt Swan, inks by Sheldon Moldoff. 

"The Interplanetary Olympics!", script by Leo Dorfman, pencils by Curt Swan, inks by George Klein; 

Superman and Lana are taken to the planet Vorn, where Superman is invited to compete in the Interplanetary Olympics. 

Origin & 1st appearance of Black Flame in "The Maid of Menace!", script by Leo Dorfman, art by Jim Mooney; 

Black Flame, a super-powered villainess, tells Supergirl she is her descendant from the 40th century, but Supergirl eventually deduces that she is really from Kandor, and wipes out her powers with Gold Kryptonite.