Black Cat #15

Black Cat investigates a mysterious aquarium where Professor Fychud and his assistant are conducting strange experiments with man-eating sharks and other dangerous sea creatures. When Black Cat visits the State Street Aquarium, she becomes suspicious of the professor's intentions and the maze-like layout of the building, discovering multiple hidden basements beneath the facility. The story culminates with Black Cat confronting Death himself, who challenges her to prove that accidents are not always fatal, leading to "The Perils of Linda Turner," a second story involving a train and a villainous figure in a red cape threatening the protagonist on railroad tracks.