Police Comics #80

In "Penetro, Master of Solids," the disgruntled Professor Growley transforms himself into the atomic phantom Penetro, using a groundbreaking equation to pass through solid matter and steal rare treasures. With Jack Cole’s dynamic art bringing the twisty, surreal crime spree to life, the issue sees Plastic Man—disguised as a woman—use cunning to outwit the intangible thief, turning the tables in a moment of unexpected physicality.