Superboy #150

In "The Stranger Who Stalks Smallville!", a mysterious figure named Mr. Cipher arrives at the Kent household, claiming he needs shelter. Written by Frank Robbins and illustrated by Bob Brown with inks by Jack Abel, this 1968 issue sees Clark Kent reluctantly let the man in after his x-ray vision reveals a hidden danger—though the true nature of the threat remains unknown. The cover, a striking portrait by Neal Adams, captures the eerie tension of the moment.