In The Seven Crystal Balls (1948), seven scientists are mysteriously struck down by a strange lethargy on their return from an expedition to the Andes. When Professor Calculus vanishes, Tintin and the Captain set out to find him. Created in 1929 by one Georges Remi, who already signed his drawings with the name Hergé, Tintin would go on to enjoy twenty-three adventures whose success with readers from 7 to 77 has never once faded.
Hardcover
