After reading the news of a plane crash in the Himalayas, Tintin dreams that his young friend Chang is injured and calling for help, half-buried in the snow. The next day, he learns from the newspaper that Chang was on board the crashed plane and that no survivors have been found. Tintin, however, believes Chang is still alive and travels to Kathmandu to organize a rescue expedition. "Tintin in Tibet" was written during a period of great personal turmoil for Hergé, and creating this work served as a true therapy that helped him move forward. According to Hergé himself, in 1958, he was experiencing a true crisis, during which his dreams and nightmares were mostly white. These recurring dreams forced him to consult a psychiatrist, who advised him to abandon the work, as he would never finish it. Fortunately, Hergé didn't follow this advice. Not only did he complete "Tintin in Tibet," but many consider it one of his masterpieces. The color white also dominates almost the entire work, but this time not as a nightmare, but as a symbolic purification. Here we see Tintin at his most human, deeply concerned about his missing friend and sent on a long and dangerous journey by a dream in which he saw his friend alive. Hergé gives free rein to his fascination with the East and paranormal phenomena: prophetic dreams, telepathy, levitation... Hergé conducted thorough research for this creation. Regarding the yeti, he says he had a list of all the credible people who had seen it, a precise description of its lifestyle, and photographs of its tracks. Hergé also met Maurice Herzog, the winner of the Anapurna, who had also seen the tracks and described them as not those of a bear, but of a bilingual creature that stopped at the foot of a rocky mountain.