Strange things are happening in the evening at the mansion: glass things break without any apparent reason. Professor Calculus, somewhat apathetic to the whole series of events, leaves the following day to attend a conference on nuclear physics in Geneva. Foreign powers get wind of his work and send their agents to investigate.

Credits

Ray GoossensDirector

Georges PoujoulyTintin (voice)

Jean ClarieuxCaptain Haddock (voice)

Fernand FabreProfessor Tournesol (voice)

Jacques MarinDupond / Dupont (voice)