For the first time (with abbreviations): Technology for youth, No. 7–8, 1961. Published according to this edition.

The hero of the series is psychology professor Maurice Jacob, who privately investigates mysterious incidents that smack of a fair amount of mysticism. As be...

An adventure story exposing swindlers and charlatans who, in the name of their own enrichment, spread pseudoscientific and mystical theories, capitalizing on...