In the prison colony on Maricombe Island the guard Letrec tries to break the prisoner Dubois. Dubois, however, withstands every way of torture - and Letrec's mind goes to waste.; Stage electrician Grew pretends to be the "Emotion Master" by casting magical spotlights. But he is only sabotaging the other acts.; Under the command of the medium Tilang Meers, a band of mediums conspires to prevent their exposure as frauds by brave newspaperman Chuck Simms.; Conrad Ganges has found a way to see the spirit world and to communicate with its inhabitants.; The final voyage of the "Octavius" through arctic waters.; Investigator Peter Hurkos has psychic powers.