Les Aventures de Tintin – Les Sept Boules de Cristal

In The Seven Crystal Balls (1948), seven scientists are mysteriously stricken with lethargy on their return from an expedition in the Andes. Each time, the victims are found surrounded by shards of crystal balls. When Professor Tournesol disappears during a visit to Professor Bergamotte, Tintin and Captain Haddock set out to find him.