Can You Solve “The Secret of Supergirl’s BIG Sister?!”

In the first of two adventures, the conniving daughter of a rocket scientist comes up with an elaborate plan to trick Supergirl into believing her to be the Kryptonian’s long-lost sister so that she can get the Girl of Steel to make diamonds out of coal.  

In the second story, Prince Raynor of a subterranean realm woos Supergirl and proposes marriage.  There she discovers their kingdom exists under an artificial light source similar to Red Kryptonite.  When Supergirl temporarily loses her powers and falls victim to a terrorist abduction, Raynor decides that she’s a liability and sends her home.

Many thanks for the expert commentary by Dr. Arnold Blumberg.  Doc is an educator, publisher, author, comic and pop culture historian, and former museum curator.  He was the editor of The Overstreet Comic Book Price guide and teaches courses in everything from comics to zombies to the Marvel Cinematic Universe.  Find him on Twitter @DoctoroftheDead.