Professor Calculus invented a machine which breaks glass with sound waves. Some foreign countries (including a Totalitarian regime) are interested and send their spies. Tintin and Haddock must face perils to come and rescue the Professor.
Professor Calculus invented a machine which breaks glass with sound waves. Some foreign countries (including a Totalitarian regime) are interested and send their spies. Tintin and Haddock must face perils to come and rescue the Professor.