Valiant #22 December 1962 [12]

In "null," Louis Crandell, a lab assistant to Professor Barringer, becomes invisible after a lab accident involving electricity—his only visible trace a floating steel prosthetic hand. As his mind unravels, he descends into madness, turning to crime in England before fleeing to New York, where he threatens the city with a bomb. His descent into villainy takes a sharp turn when he finds himself entangled with a gangster, prompting a slow realization that he may not be the monster he’s become.