Jim Brandon who fought crime as the Avenger was a famous biochemist who perfected two inventions that aided him in the fight against crime: the telepathic indicator allowed him to pick up random thought flashes, and the secret diffusion capsule cloaked him in the “black light of invisibility”. The only person that shares his secrets and knew that he was The Avenger, the man feared by the underworld is his beautiful assistant Fern Collier.